def initAUD(self):
#
info = QAudioDeviceInfo.defaultInputDevice()
if (~info.isFormatSupported(self.audio.format)):
# print("警告，设置的默认音频格式并不支持，将尝试采用最相近的支持格式")
# 不知道这里面有什么神改动？
self.audio.format = info.nearestFormat(self.audio.format)
#
update_interval = 160
self.audioRecorder = QAudioInput(self.audio.format)
self.audioRecorder.setNotifyInterval(update_interval) #按毫秒ms 类似于QTimer的作用
self.audioRecorder.notify.connect(self.processAudioData)
self.audioRecorder_TD = QThread()
self.audioRecorder.moveToThread(self.audioRecorder_TD)
self.audioRecorder_TD.started.connect(self.startRecord)
self.audioRecorder.stateChanged.connect(self.recordStopped)
# 总结来说线程只是一个容器，里面执行的循环要是没法结束，强制退出也不好操作
# 所以还是好好写好任务流然后发送信号比较合理
self.audioPlayer = QAudioOutput(self.audio.format)
self.audioPlayer.setNotifyInterval(update_interval)
self.audioPlayer.notify.connect(self.processAudioData)
self.audioPlayer_TD = QThread()
self.audioPlayer.moveToThread(self.audioPlayer_TD)
self.audioPlayer_TD.started.connect(self.startPlay)
self.audioPlayer.stateChanged.connect(self.playStopped)
def createAudioOutput(self):
self.m_audioOutput = QAudioOutput(self.m_device, self.m_format)
self.m_audioOutput.notify.connect(self.notified)
self.m_audioOutput.stateChanged.connect(self.handleStateChanged)
self.m_generator.start()
self.m_audioOutput.start(self.m_generator)
self.m_volumeSlider.setValue(self.m_audioOutput.volume() * 100)
def initAudio(self):
self.audioformat = QAudioFormat()
self.audioformat.setSampleRate(self.samplerate)
self.audioformat.setChannelCount(2)
self.audioformat.setSampleSize(32)
self.audioformat.setCodec('audio/pcm')
self.audioformat.setByteOrder(QAudioFormat.LittleEndian)
self.audioformat.setSampleType(QAudioFormat.Float)
self.audiooutput = QAudioOutput(self.audioformat)
self.audiooutput.setVolume(1.0)
def __init__(self, parent=None):
print("Tone Widget inst")
QWidget.__init__(self, parent)
self.activeGen = ActiveGen(sampleRate=SAMPLE_RATE,
samplePerRead=Meep.SAMPLES_PER_READ)
self.createUI(self)
# Meep playback format initialization
format = QAudioFormat()
format.setChannelCount(AUDIO_CHANS)
format.setSampleRate(SAMPLE_RATE)
format.setSampleSize(SAMPLE_SIZE)
format.setCodec("audio/pcm")
format.setByteOrder(QAudioFormat.LittleEndian)
format.setSampleType(QAudioFormat.SignedInt)
# check compatibility of format with device
info = QAudioDeviceInfo(QAudioDeviceInfo.defaultOutputDevice())
if info.isFormatSupported(format) is False:
print(
"Raw audio format not supported by backend, cannot play audio."
)
return None
# Audio Output init
self.output = QAudioOutput(format, self)
output_buffer_size = \
int(2*SAMPLE_RATE \
*CTRL_INTERVAL/1000)
self.output.setBufferSize(output_buffer_size)
# initialize and start the audio playback
self.generator = Meep(format, self.activeGen, self)
self.generator.start()
self.output.start(self.generator)
# Create the port reader object
self.midiListener = MidiPortReader()
# Create a thread which will read it
self.listenerThread = QThread()
# move QObjet to a new thread
self.midiListener.moveToThread(self.listenerThread)
# Connect the signals to slot functions
self.midiListener.newNoteFrequency.connect(self.activeGen.setFreq)
self.midiListener.newNotePress.connect(self.activeGen.setNote)
# Tell Qt the function to call
# when it starts the thread
self.listenerThread.started.connect(self.midiListener.listener)
# start the thread
self.listenerThread.start()
def initAudio(self):
self.audioformat = QAudioFormat()
self.audioformat.setSampleRate(self.samplerate)
self.audioformat.setChannelCount(2)
self.audioformat.setSampleSize(32)
self.audioformat.setCodec('audio/pcm')
self.audioformat.setByteOrder(QAudioFormat.LittleEndian)
self.audioformat.setSampleType(QAudioFormat.Float)
# self.audiodeviceinfo = QAudioDeviceInfo(QAudioDeviceInfo.defaultOutputDevice())
self.audiooutput = QAudioOutput(self.audioformat)
self.audiooutput.setVolume(self.initVolume)
def ot_dev_change(self, new_index):
if self.otput_device:
if self.input_device:
self.input_device.stop()
self.otput_device.stop()
self.otput_device = None
audio_info = self.otput_info_list[new_index]
preferred_format = audio_info.preferredFormat()
self.otput_device = QAudioOutput(audio_info, preferred_format)
self.otput_device.setVolume(self.volume.value() / 100)
#self.otput_device.setBufferSize( 384 )
if self.input_device:
self.input_device.start(self.otput_device.start())
def __init__(self, parent=None):
QWidget.__init__(self, parent)
format = QAudioFormat()
format.setChannelCount(1)
format.setSampleRate(22050)
format.setSampleSize(16)
format.setCodec("audio/pcm")
format.setByteOrder(QAudioFormat.LittleEndian)
format.setSampleType(QAudioFormat.SignedInt)
self.output = QAudioOutput(format, self)
self.frequency = 440
self.volume = 0
self.buffer = QBuffer()
self.data = QByteArray()
self.deviceLineEdit = QLineEdit()
self.deviceLineEdit.setReadOnly(True)
self.deviceLineEdit.setText(
QAudioDeviceInfo.defaultOutputDevice().deviceName())
self.pitchSlider = QSlider(Qt.Horizontal)
self.pitchSlider.setMaximum(100)
self.volumeSlider = QSlider(Qt.Horizontal)
self.volumeSlider.setMaximum(32767)
self.volumeSlider.setPageStep(1024)
self.playButton = QPushButton(self.tr("&Play"))
self.pitchSlider.valueChanged.connect(self.changeFrequency)
self.volumeSlider.valueChanged.connect(self.changeVolume)
self.playButton.clicked.connect(self.play)
formLayout = QFormLayout()
formLayout.addRow(self.tr("Device:"), self.deviceLineEdit)
formLayout.addRow(self.tr("P&itch:"), self.pitchSlider)
formLayout.addRow(self.tr("&Volume:"), self.volumeSlider)
buttonLayout = QVBoxLayout()
buttonLayout.addWidget(self.playButton)
buttonLayout.addStretch()
horizontalLayout = QHBoxLayout(self)
horizontalLayout.addLayout(formLayout)
horizontalLayout.addLayout(buttonLayout)
self.play()
self.createData()
def __init__(self):
super(JackStreamListen, self).__init__()
self.ip = '127.0.0.1'
self.port = '23'
self.state = 'disconnected'
self.channel_select = -1
self.channel_count = -1
# self.tsfmt = '%y%m%d-%H%M%S:'
# self.textFgColor = 'rgb(0,0,0)'
# self.textBgColor = 'rgb(255,255,255)'
# self.fontstr = 'Helvetica'
logging.debug('DBG: state = ' + self.state)
# self.insFile = "";self.insDir=""
# self.insSleepAmount = 0;
self.qsock = QtNetwork.QTcpSocket(self)
self.qsock.readyRead.connect(self.onReadyRead)
# create None/empty variables to be created/updated later
self.prevpkt = bytearray() # note a QByteArray b/c reusing msgify_pkt
self.audiodata = bytearray()
self.clips = []
self.rms = []
self.audiofmt = QAudioFormat()
self.audioout = QAudioOutput()
self.iodevice = self.createIoDevice()
#FIXME self.tcpSocket.error.connect(self.displayError)
# self.font = QtGui.QFont()
self.loadSettings()
self.initUI()
def createAudioOutput(self):
self.m_audioOutput = QAudioOutput(self.m_device, self.m_format)
self.m_audioOutput.notify.connect(self.notified)
self.m_audioOutput.stateChanged.connect(self.handleStateChanged)
self.m_generator.start()
self.m_audioOutput.start(self.m_generator)
self.m_volumeSlider.setValue(self.m_audioOutput.volume() * 100)
def create_AUDIO(self, format):
format.setChannelCount(AUDIO_CHANS)
format.setSampleRate(SAMPLE_RATE)
format.setSampleSize(SAMPLE_SIZE)
format.setCodec("audio/pcm")
format.setByteOrder(
QAudioFormat.LittleEndian
)
format.setSampleType(
QAudioFormat.SignedInt
)
self.output = QAudioOutput(format, self)
output_buffer_size = \
int(2*SAMPLE_RATE \
*CTRL_INTERVAL/1000)
self.output.setBufferSize(
output_buffer_size
)
def __init__(self,parent=None):
#UI
QWidget.__init__(self,parent)
self.create_UI(parent)
#audio formatting
format=QAudioFormat()
format.setChannelCount(AUDIO_CHANS)
format.setSampleRate(SAMPLE_RATE)
format.setSampleSize(SAMPLE_SIZE)
format.setCodec("audio/pcm")
format.setByteOrder(
QAudioFormat.LittleEndian
)
format.setSampleType(
QAudioFormat.SignedInt
)
self.output=QAudioOutput(format,self)
output_buffer_size=\
int(2*SAMPLE_RATE \
*CTRL_INTERVAL/1000)
self.output.setBufferSize(
output_buffer_size
)
self.generator=Generator(format,self)
#THREADS
self.midiListener=MidiPortReader()
self.listenerThread=QThread()
self.midiListener.moveToThread(
self.listenerThread
)
self.listenerThread.started.connect(
self.midiListener.listener
)
self.listenerThread.start()
self.midiListener.noteOff.connect(self.generator.noteOff)
self.midiListener.noteVelocity.connect(self.generator.noteVelocity)
self.midiListener.noteOn.connect(self.generator.noteOn)
self.volumeSlider.valueChanged.connect(self.generator.volSlide)
self.qfacSlider.valueChanged.connect(self.generator.qFactor)
self.generator.start()
self.output.start(self.generator)
class ToneGenerator(QWidget):
def __init__(self, parent=None):
QWidget.__init__(self, parent)
format = QAudioFormat()
format.setChannelCount(AUDIO_CHANS)
format.setSampleRate(SAMPLE_RATE)
format.setSampleSize(SAMPLE_SIZE)
format.setCodec("audio/pcm")
format.setByteOrder(QAudioFormat.LittleEndian)
format.setSampleType(QAudioFormat.SignedInt)
self.output = QAudioOutput(format, self)
output_buffer_size = \
int(2*SAMPLE_RATE \
*CTRL_INTERVAL/1000)
self.output.setBufferSize(output_buffer_size)
self.generator = Meep(format, self)
self.generator.start()
self.output.start(self.generator)
# Create the port reader object
self.midiListener = MidiPortReader()
# Create a thread which will read it
self.listenerThread = QThread()
# Take the object and move it
# to the new thread (it isn't running yet)
self.midiListener.moveToThread(self.listenerThread)
self.midiListener.newNoteFrequency.connect(self.generator.changeFreq)
# Tell Qt the function to call
# when it starts the thread
self.listenerThread.started.connect(self.midiListener.listener)
# Fingers in ears, eyes tight shut...
self.listenerThread.start()
def set_data(self, mono_sig, sr):
# if not self.format:
self.format = QAudioFormat()
self.format.setChannelCount(1)
self.format.setSampleRate(sr)
#numpy is in bites, qt in bits
self.format.setSampleSize(mono_sig.dtype.itemsize * 8)
self.format.setCodec("audio/pcm")
self.format.setByteOrder(QAudioFormat.LittleEndian)
self.format.setSampleType(QAudioFormat.Float)
self.output = QAudioOutput(self.format, self)
self.output.stateChanged.connect(self.audio_state_changed)
#change the content without stopping playback
p = self.buffer.pos()
if self.buffer.isOpen():
self.buffer.close()
self.data = mono_sig.tobytes()
self.buffer.setData(self.data)
self.buffer.open(QIODevice.ReadWrite)
self.buffer.seek(p)
def ot_dev_change(self, new_index):
print('index', new_index)
# Disconnect and stop the devices if they are connected.
self.disconnect_devices()
self.otput_device = None # device object goes out of scope
# Get the QAudioDeviceInfo corresponding to this index of the combox.
audio_info = self.otput_info_list[new_index]
# Create a new QAudioOutput based on that.
preferred_format = audio_info.preferredFormat()
self.otput_device = QAudioOutput(audio_info, preferred_format)
self.otput_device.setVolume(0) # reconnect will set correct volume
# hook up possible debug status display
self.otput_device.stateChanged.connect(self.ot_dev_state_change)
# reconnect the devices if possible. Which also sets the volume.
self.reconnect_devices()
def __init__(self, parent=None):
QWidget.__init__(self, parent)
format = QAudioFormat()
format.setChannelCount(AUDIO_CHANS)
format.setSampleRate(SAMPLE_RATE)
format.setSampleSize(SAMPLE_SIZE)
format.setCodec("audio/pcm")
format.setByteOrder(QAudioFormat.LittleEndian)
format.setSampleType(QAudioFormat.SignedInt)
self.output = QAudioOutput(format, self)
output_buffer_size = \
int(2*SAMPLE_RATE \
*CTRL_INTERVAL/1000)
self.output.setBufferSize(output_buffer_size)
self.generator = Meep(format, self)
self.generator.start()
self.output.start(self.generator)
def ot_dev_change(self, new_index):
if self.otput_device:
if self.input_device:
self.input_device.stop()
self.otput_device.stop()
self.otput_device = None
audio_info = self.otput_info_list[new_index]
preferred_format = audio_info.preferredFormat()
self.otput_device = QAudioOutput(audio_info, preferred_format)
self.otput_device.setVolume(self.volume.value() / 100)
# self.otput_device.setBufferSize( 384 )
if self.input_device:
self.input_device.start(self.otput_device.start())
def get_audio_output(params):
"""
Create and return a QAudioOutput from wav params.
"""
enc = 'audio/pcm'
fmt = QAudioFormat()
fmt.setChannelCount(params.nchannels)
fmt.setSampleRate(params.framerate)
fmt.setSampleSize(params.sampwidth * 8)
fmt.setCodec(enc)
fmt.setByteOrder(QAudioFormat.LittleEndian)
fmt.setSampleType(QAudioFormat.SignedInt)
return QAudioOutput(fmt)
def __init__(self, parent=None):
QWidget.__init__(self, parent)
format = QAudioFormat()
format.setChannelCount(AUDIO_CHANS)
format.setSampleRate(SAMPLE_RATE)
format.setSampleSize(SAMPLE_SIZE)
format.setCodec("audio/pcm")
format.setByteOrder(QAudioFormat.LittleEndian)
format.setSampleType(QAudioFormat.SignedInt)
self.output = QAudioOutput(format, self)
output_buffer_size = \
int(2*CTRL_INTERVAL/1000)
self.output.setBufferSize(output_buffer_size)
self.generator = Generator(format, self)
self.midiListener = MidiPortReader()
self.listenerThread = QThread()
self.midiListener.moveToThread(self.listenerThread)
self.listenerThread.started.connect(self.midiListener.listener)
self.midiListener.addVoice.connect(self.generator.addVoice)
self.midiListener.removeVoice.connect(self.generator.removeVoice)
self.createUI()
self.pslider.valueChanged.connect(self.generator.changeP)
self.fslider.valueChanged.connect(self.generator.qCalc)
self.semiDown.clicked.connect(self.smDown)
self.semiUp.clicked.connect(self.smUp)
self.octaveDown.clicked.connect(self.ovDown)
self.octaveUp.clicked.connect(self.ovUp)
self.listenerThread.start()
self.generator.start()
self.output.start(self.generator)
class SideToneWidget(QWidget):
def __init__(self, parent):
super().__init__(parent)
# Save link to main window
self.main_window = parent
# Get the status bar
self.status_bar = parent.statusBar()
# Slot that will point to a QAudioInput some day
self.input_device = None
# Slot that will point to a QAudioOutput in time
self.otput_device = None
# set up layout, creating:
# self.input_info_list, list of QAudioInfo for inputs
# self.cb_inputs, combox of input names in same order
# self.otput_info_list, list of QAudioInfo for outputs
# self.cb_otputs, combox of output names in same order
# self.volume, volume slider
# self.mute, mute checkbox
self._uic()
# Connect up signals to slots.
# Changes in the comboxes go to in_device and ot_device
self.cb_inputs.currentIndexChanged.connect(self.in_dev_change)
self.cb_otputs.currentIndexChanged.connect(self.ot_dev_change)
# Mute button goes to mute_change
self.mute.stateChanged.connect(self.mute_change)
# Change in volume goes to volume_change
self.volume.valueChanged.connect(self.volume_change)
# Start with the mute switch on. This triggers the above two signals.
self.mute.setChecked(True)
# Slot for any change in volume (or mute). If we have an output device
# then convert level to a real and pass to the output device. If the new
# level is 0, tell the device to stop; if nonzero, tell it to start.
# Note we don't do anything about the input device level, it is always 1.0
def volume_change(self, new_level):
if self.otput_device: # we have an output device
self.otput_device.setVolume(self.volume.value() / 100)
if new_level == 0: # looks like a mute
# tell the output device to stop just in case it
# doesn't know about volume control.
self.otput_device.stop()
else: # non-zero level, if the output is stopped, start it
if self.otput_device.state() == QAudio.StoppedState:
self.otput_device.start()
# Slot for mute switch. Note that any change to the volume slider
# generates a signal to the volume_change slot.
def mute_change(self, onoff):
if onoff:
# Mute has been clicked ON. Remember the current volume.
# Turn the volume to zero.
self.volume_level = self.volume.value()
self.volume.setValue(0)
else:
# Mute has been clicked OFF. If we do not yet have input and
# output devices, get them. Then reset the old volume level.
if self.otput_device is None:
# We are starting up and have no devices. Fake a call to
# the checkbox-change entries thus creating devices.
self.in_dev_change(self.cb_inputs.currentIndex())
self.ot_dev_change(self.cb_inputs.currentIndex())
self.volume.setValue(self.volume_level)
# Slots for changes in the selection of the input- and output-device
# combo boxes. On startup we have neither an input nor an output device.
# We do not know which combox the user will fiddle with first. So either
# has to assume that the other device may not yet exist.
#
# On a change of input choice: if we have an input device, get rid of it.
# Create a new input device. Set its level to 1.0. If we
# have an output, connect the two.
def in_dev_change(self, new_index):
if self.input_device:
if self.otput_device:
self.otput_device.stop()
self.input_device.stop()
self.input_device = None # goodby object
# Get the QAudioDeviceInfo corresponding to this index of the combox.
audio_info = self.input_info_list[new_index]
# Create a new QAudioInput based on that.
preferred_format = audio_info.preferredFormat()
self.input_device = QAudioInput(audio_info, preferred_format)
self.input_device.setVolume(1.0)
self.input_device.setBufferSize(384)
# If we have an output device, redirect it to this input. This is
# done by asking the input device for its QIODevice, and passing that
# to the output device's start() method.
if self.otput_device:
self.input_device.start(self.otput_device.start())
#self.otput_device.start( self.input_device.start() )
# On a change in the selection of output choice: If we have an output
# device, get rid of it. Create a new output device. If we have an input
# device, connect the two. Set the output level from the volume slider.
def ot_dev_change(self, new_index):
if self.otput_device:
if self.input_device:
self.input_device.stop()
self.otput_device.stop()
self.otput_device = None
audio_info = self.otput_info_list[new_index]
preferred_format = audio_info.preferredFormat()
self.otput_device = QAudioOutput(audio_info, preferred_format)
self.otput_device.setVolume(self.volume.value() / 100)
#self.otput_device.setBufferSize( 384 )
if self.input_device:
self.input_device.start(self.otput_device.start())
#self.otput_device.start( self.input_device.start() )
def _uic(self):
'''
set up our layout which consists of:
Big Honkin' Label
[input combobox] [output combobox]
[volume slider] [x] Mute
hooking put the signals to useful slots is the job
of __init__. Here just make the layout.
'''
self.setMinimumWidth(400)
# Create the big honkin' label and logo
icon_pixmap = QPixmap(':/icon.png').scaledToWidth(64)
icon_label = QLabel()
icon_label.setPixmap(icon_pixmap)
text_label = QLabel("Sidetone!")
hb_label = QHBoxLayout()
hb_label.addStretch(1)
hb_label.addWidget(icon_label, 0)
hb_label.addWidget(text_label, 0)
hb_label.addStretch(1)
# Create a list of QAudioInfo objects for inputs
self.input_info_list = QAudioDeviceInfo.availableDevices(
QAudio.AudioInput)
if 0 == len(self.input_info_list):
self.input_info_list = [QAudioDeviceInfo.defaultInputDevice()]
# Create a combo box and populate it with names of inputs
self.cb_inputs = QComboBox()
self.cb_inputs.addItems(
[audio_info.deviceName() for audio_info in self.input_info_list])
# Create a list of QAudioInfo objects for outputs
self.otput_info_list = QAudioDeviceInfo.availableDevices(
QAudio.AudioOutput)
if 0 == len(self.otput_info_list):
self.otput_info_list = [QAudioDeviceInfo.defaultOutputDevice()]
self.status_bar.showMessage(
'{} inputs {} otputs'.format(len(self.input_info_list),
len(self.otput_info_list)), 2000)
# Create a combo box and populate it with names of outputs
self.cb_otputs = QComboBox()
self.cb_otputs.addItems(
[audio_info.deviceName() for audio_info in self.otput_info_list])
# Lay those two out aligned to the outside
hb_combos = QHBoxLayout()
hb_combos.addWidget(self.cb_inputs, 1)
hb_combos.addStretch(0)
hb_combos.addWidget(self.cb_otputs, 1)
# Create a volume slider from 0 to 100.
self.volume = QSlider(Qt.Horizontal, self)
self.volume.setMinimum(0)
self.volume.setMaximum(100)
self.volume.setTickInterval(10)
self.volume.setTickPosition(QSlider.TicksBothSides)
# Create a checkbox "Mute"
self.mute = QCheckBox('Mute')
# Put those together in a row squeezed in the center
hb_volume = QHBoxLayout()
hb_volume.addStretch(1)
hb_volume.addWidget(self.volume, 1)
hb_volume.addWidget(self.mute, 0)
hb_volume.addStretch(1)
# Stack all those up as this widget's layout
vlayout = QVBoxLayout()
vlayout.addLayout(hb_label)
vlayout.addLayout(hb_combos)
vlayout.addLayout(hb_volume)
self.setLayout(vlayout)
class AudioAnalysis(QDialog):
def __init__(self, mainwin, dir):
super().__init__()
self.main_Win = mainwin
self.snd_record_ctr = 0
self.snd_play_ctr = 0
self.snd_reset_ctr = 0
self.is_snd_recording = None
#
self.audio = Audio(save_dir=dir)
self.initAUD()
self.initIF()
self.initWaveList()
def initIF(self):
self.layout = QGridLayout(self)
self.setLayout(self.layout)
icon = QIcon()
icon.addPixmap(QPixmap("./style/logo3.png"))
self.setWindowIcon(icon)
self.setWindowTitle("语音录制与分析")
self.list_LW = QListWidget(self)
self.list_LW.setMaximumWidth(160)
class WaveSpectrum(QWidget):
def __init__(self, parent=None, maindlg=None):
super(WaveSpectrum, self).__init__(parent)
self.main_Dlg = maindlg
#self.pg_PL = pg.PlotWidget(enableMenu=False)
self.audio = self.main_Dlg.audio
self.layout = QGridLayout(self)
self.setLayout(self.layout)
self.pg_PL = pg.PlotWidget() #pg.plot(title="Three plot curves")
self.pg_PL.hideButtons()
self.layout.addWidget(self.pg_PL)
self.item = self.pg_PL.getPlotItem()
self.item.hideButtons()
self.item.setMouseEnabled(y=False)
self.item.setYRange(0,20000)
range = self.audio.rate/2
self.item.setXRange(-range,range, padding=0)
self.axis = self.item.getAxis("bottom")
self.axis.setLabel("频率（赫兹）")
def updatePlot(self):
try:
data = np.fromstring(self.audio.block, 'int16')
#print(data)
T = 1.0/self.audio.rate
N = data.shape[0]
Fx = (1./N) * np.fft.fft(data) # 万一N==0
except Exception as e:
print("??",e)
else:
f = np.fft.fftfreq(N, T)
Fx = np.fft.fftshift(Fx)
f = np.fft.fftshift(f)
self.item.plot(x=f.tolist(), y=(np.absolute(Fx)).tolist(), clear=True)
self.wave_spectrum_PG = WaveSpectrum(maindlg=self)
self.result_LB = QLabel(self)
self.result_LB.setText("欢迎使用")
self.running_SL = QSlider(Qt.Horizontal)
self.running_SL.setMinimum(0)
self.running_SL.setMaximum(100)
self.running_SL.setStyleSheet("QSlider::handle:horizontal {background-color: #d91900;}")
self.save_BT = QPushButton(self)
self.save_BT.setText("保存与分析")
self.save_BT.setMinimumSize(128,32)
self.record_BT = QPushButton(self)
self.record_BT.setText("开始录音")
self.record_BT.setMinimumSize(144,32)
self.play_BT = QPushButton(self)
self.play_BT.setText("开始播放")
self.play_BT.setMinimumSize(144,32)
self.reset_BT = QPushButton(self)
self.reset_BT.setText("停止")
self.reset_BT.setMinimumSize(128,32)
self.layout.addWidget(self.list_LW, 0,0,1,1)
self.layout.addWidget(self.wave_spectrum_PG, 0,1, 1,3)
self.layout.addWidget(self.result_LB, 1,0, 1,4)
self.layout.addWidget(self.running_SL, 2,0, 1,4)
self.layout.addWidget(self.save_BT, 3,0, 2,1)
self.layout.addWidget(self.record_BT, 3,1, 2,1)
self.layout.addWidget(self.play_BT, 3,2, 2,1)
self.layout.addWidget(self.reset_BT, 3,3, 2,1)
self.list_LW.itemClicked.connect(self.sel2Play)
self.record_BT.clicked.connect(self.click2Record)
self.running_SL.sliderReleased.connect(self.dragPosPlay)
# 注意这里得是用户主动的动作哟 另外如果需要点击位置定位的话还必须要重写mousePressEvent，这里就不弄了
self.play_BT.clicked.connect(self.click2Play)
self.reset_BT.clicked.connect(self.click2Reset)
self.save_BT.clicked.connect(self.click2Save)
def initWaveList(self):
self.wave_dict = {"小黄":["catH1.wav",0],"小黄骚":["catH2.wav",0], "小黄又骚":["catH3.wav",0], "小黄又又骚":["catH4.wav",0]
,"煤球":["catM1.wav",0],"煤球骚":["catM2.wav",0], "煤球又骚":["catM3.wav",0]
,"老公":["laog.wav",0], "老婆":["laop.wav",0]}
for k in self.wave_dict:
item = QListWidgetItem()
item.setText(k)
item.setData(Qt.UserRole, self.wave_dict[k])
self.list_LW.addItem(item)
def initAUD(self):
#
info = QAudioDeviceInfo.defaultInputDevice()
if (~info.isFormatSupported(self.audio.format)):
# print("警告，设置的默认音频格式并不支持，将尝试采用最相近的支持格式")
# 不知道这里面有什么神改动？
self.audio.format = info.nearestFormat(self.audio.format)
#
update_interval = 160
self.audioRecorder = QAudioInput(self.audio.format)
self.audioRecorder.setNotifyInterval(update_interval) #按毫秒ms 类似于QTimer的作用
self.audioRecorder.notify.connect(self.processAudioData)
self.audioRecorder_TD = QThread()
self.audioRecorder.moveToThread(self.audioRecorder_TD)
self.audioRecorder_TD.started.connect(self.startRecord)
self.audioRecorder.stateChanged.connect(self.recordStopped)
# 总结来说线程只是一个容器，里面执行的循环要是没法结束，强制退出也不好操作
# 所以还是好好写好任务流然后发送信号比较合理
self.audioPlayer = QAudioOutput(self.audio.format)
self.audioPlayer.setNotifyInterval(update_interval)
self.audioPlayer.notify.connect(self.processAudioData)
self.audioPlayer_TD = QThread()
self.audioPlayer.moveToThread(self.audioPlayer_TD)
self.audioPlayer_TD.started.connect(self.startPlay)
self.audioPlayer.stateChanged.connect(self.playStopped)
#
def startRecord(self):
self.audioRecorder.start(self.audio.record_buffer) # 独立出来主要就是为了传个参数进去
def click2Record(self):
if self.snd_play_ctr != 0:
self.audioPlayer.suspend()
self.audioPlayer.stop()
self.audio.play_buffer.close()
self.running_SL.setValue(0)
self.audioPlayer_TD.quit()
self.snd_play_ctr = 0
self.play_BT.setText("开始播放")
#
self.is_snd_recording = True
self.running_SL.setStyleSheet("QSlider::handle:horizontal {background-color: #d91900;}")
self.running_SL.setValue(0)
if self.snd_record_ctr == 0:
self.audio.record_buffer.open(QIODevice.WriteOnly)
self.audioRecorder_TD.start() #注意这里是分线程进行
self.record_BT.setText("暂停录音")
self.reset_BT.setText("停止录音")
elif self.snd_record_ctr % 2 == 1:
self.audioRecorder.suspend()
self.result_LB.setText("录音暂停")
self.record_BT.setText("继续录音")
else: # self.snd_record_ctr % 2 == 0:
self.audioRecorder.resume()
self.record_BT.setText("暂停录音")
self.snd_record_ctr += 1
def recordStopped(self):
if self.audioRecorder.state() == QAudio.StoppedState: #==2 #QAudio.IdleState: #==3;
self.audioRecorder_TD.quit()
def startPlay(self):
self.audioPlayer.start(self.audio.play_buffer)
def click2Play(self):
if self.is_snd_recording == None:
self.result_LB.setText("还没录音呢！！！")
else:
if self.snd_record_ctr % 2 == 1:
self.audioRecorder.suspend()
self.record_BT.setText("继续录音")
self.snd_record_ctr += 1
#
self.is_snd_recording = False
self.running_SL.setStyleSheet("QSlider::handle:horizontal {background-color: #007ad9;}")
if self.snd_play_ctr == 0:
data = self.audio.record_buffer.data()
self.audio.play_buffer.setData(data)
self.audio.play_buffer.open(QIODevice.ReadOnly) # 要在关闭的情况下设置数据然后在以某种模式打开
self.audioPlayer_TD.start()
self.running_SL.setValue(0)
self.start_time = 0
# self.start_time = self.running_SL.value() / 100 * self.audio.duration
# self.audioPlayer.setVolume(0.8)
self.play_BT.setText("暂停播放")
self.reset_BT.setText("停止播放")
elif self.snd_play_ctr % 2 == 1:
self.audioPlayer.suspend()
self.result_LB.setText("播放暂停")
self.play_BT.setText("继续播放")
else:
self.audioPlayer.resume()
self.play_BT.setText("暂停播放")
self.snd_play_ctr += 1
def playStopped(self):
if self.audioPlayer.state() == QAudio.IdleState: #==3; #QAudio.StoppedState: #==2
self.audioPlayer.stop()
self.running_SL.setValue(0)
self.audio.play_buffer.close()
self.audioPlayer_TD.quit()
self.snd_play_ctr = 0
self.play_BT.setText("开始播放")
def dragPosPlay(self):
if self.is_snd_recording == None:
self.running_SL.setValue(0)
else:
if self.is_snd_recording & (self.snd_record_ctr % 2 == 1):
self.audioRecorder.suspend()
self.record_BT.setText("继续录音")
self.snd_record_ctr += 1
if (not self.is_snd_recording) & (self.snd_play_ctr % 2 == 1):
self.audioPlayer.suspend()
self.play_BT.setText("继续播放")
self.snd_play_ctr += 1
self.is_snd_recording = False
self.running_SL.setStyleSheet("QSlider::handle:horizontal {background-color: #007ad9;}")
self.audioPlayer.stop()
self.audio.play_buffer.close()
self.audioPlayer_TD.quit()
#
data = self.audio.record_buffer.data()
self.audio.play_buffer.setData(data)
self.audio.play_buffer.open(QIODevice.ReadOnly) # 要在关闭的情况下设置数据然后在以某种模式打开
self.audioPlayer_TD.start()
data_size = self.audio.record_buffer.data().size()
sel_pcent = self.running_SL.value() / 100
sel_size = int(sel_pcent * data_size)
self.audio.pos = int(sel_pcent * (data_size / self.audio.chunksize)) # 重设第几个chunk开始播放
self.start_time = int(sel_pcent * self.audio.duration) # 重设开始播放时间
self.audio.play_buffer.seek(sel_size)
self.snd_play_ctr = 1
self.play_BT.setText("暂停播放")
def sel2Play(self, item):
c0 = (self.is_snd_recording == None)
c1 = ((self.is_snd_recording == False) & (self.snd_play_ctr % 2 == 0))
c2 = ((self.is_snd_recording == True) & (self.snd_record_ctr % 2 == 0))
if (c0 | c1 | c2):
self.cur_item = item
sound_dir = "./sound/"
#self.cur_wave = os.path.abspath(item.data(Qt.UserRole)[0])
self.cur_wave = item.data(Qt.UserRole)[0]
sound_path = os.path.join(sound_dir, self.cur_wave)
with wave.open(sound_path, 'rb') as wf:
data = wf.readframes(wf.getnframes())
self.audio.play_buffer.setData(data)
self.audio.play_buffer.open(QIODevice.ReadOnly)
self.start_time = 0
self.audio.duration = 10 # 随便给了个值，避免产生除0的问题其他没啥用
self.audioPlayer_TD.start()
def click2Reset(self):
if self.is_snd_recording == None:
self.result_LB.setText("还没录音呢！！！")
elif self.is_snd_recording:
self.audioRecorder.stop()
self.audio.record_buffer = QBuffer()
self.snd_record_ctr = 0
self.result_LB.setText("录音停止")
self.record_BT.setText("开始录音")
else: #not self.is_snd_recording:
self.audioPlayer.stop()
self.audio.pos = 0
self.snd_play_ctr = 0
self.result_LB.setText("播放停止")
self.play_BT.setText("开始播放")
self.running_SL.setValue(0)
def click2Save(self):
if self.is_snd_recording == None:
self.result_LB.setText("还没录音呢！！！")
elif self.is_snd_recording:
self.audioRecorder.suspend()
else:
self.audioPlayer.suspend()
#self.audio.save_path = QFileDialog().getSaveFileName(self.main_Dlg, "选个保存的地方吧", new_path)[0]
# 注意末尾那个[0]别丢了，不然返回的是tuple类型
self.audio.saveWave()
self.snd_record_ctr = 0
self.result_LB.setText("录音存于：{}；刚刚应该是{}叫了:)".format(os.path.abspath(self.audio.save_path), self.getMinDist()))
self.record_BT.setText("开始录音")
def processAudioData(self):
if self.is_snd_recording: #self.audioRecorder.state() == QAudio.ActiveState:
self.audio.block = self.audio.record_buffer.data().right(self.audio.chunksize)
self.audio.duration = self.audioRecorder.processedUSecs() # 注意这里是微秒！！！
interval = 10
self.running_SL.setValue((self.audio.duration / 1000000) % interval * (100 / interval))
show_info = "已录制{:.1f}秒".format(self.audio.duration/1000000.0)
self.result_LB.setText(show_info)
else: # self.audioPlayer.state() == QAudio.ActiveState:
# 试过chop 不过好像没有必要
self.audio.block = self.audio.play_buffer.data().mid(self.audio.pos*self.audio.chunksize, self.audio.chunksize)
self.audio.pos += 1
self.running_SL.setValue((self.start_time + self.audioPlayer.processedUSecs())/self.audio.duration*100)
show_info = "正在播放{:.1f}/{:.1f}秒".format((self.start_time + self.audioPlayer.processedUSecs())/1000000.0
,self.audio.duration/1000000.0)
self.result_LB.setText(show_info)
self.wave_spectrum_PG.updatePlot()
def getMFCC(self,path):
(rate, sig) = scwav.read(path)
mfcc_feature = mfcc(sig, rate)
nmfcc = np.array(mfcc_feature)
y, sr = librosa.load(path)
return librosa.feature.mfcc(y, sr)
def compareMFCC(self, demo_path):
mfcc1 = self.getMFCC(self.audio.save_path)
print(demo_path)
mfcc2 = self.getMFCC(demo_path)
norm = lambda x, y: nlnorm(x-y, ord=1)
d, cost_matrix, acc_cost_matrix, path = dtw(mfcc1.T, mfcc2.T, dist=norm)
return d
def getMinDist(self):
i = 1000000
sound_dir = "./sound/"
for k in self.wave_dict:
self.wave_dict[k][1] = self.compareMFCC(os.path.join(sound_dir, self.wave_dict[k][0]))
print("{}：{:.1f}".format(k, self.wave_dict[k][1]))
i = min(i, self.wave_dict[k][1])
if i == self.wave_dict[k][1]:
min_k = k
return min_k
class AudioTest(QMainWindow):
PUSH_MODE_LABEL = "Enable push mode"
PULL_MODE_LABEL = "Enable pull mode"
SUSPEND_LABEL = "Suspend playback"
RESUME_LABEL = "Resume playback"
DurationSeconds = 1
ToneSampleRateHz = 600
DataSampleRateHz = 44100
def __init__(self):
super(AudioTest, self).__init__()
self.m_device = QAudioDeviceInfo.defaultOutputDevice()
self.m_output = None
self.initializeWindow()
self.initializeAudio()
def initializeWindow(self):
layout = QVBoxLayout()
self.m_deviceBox = QComboBox(activated=self.deviceChanged)
for deviceInfo in QAudioDeviceInfo.availableDevices(
QAudio.AudioOutput):
self.m_deviceBox.addItem(deviceInfo.deviceName(), deviceInfo)
layout.addWidget(self.m_deviceBox)
self.m_modeButton = QPushButton(clicked=self.toggleMode)
self.m_modeButton.setText(self.PUSH_MODE_LABEL)
layout.addWidget(self.m_modeButton)
self.m_suspendResumeButton = QPushButton(
clicked=self.toggleSuspendResume)
self.m_suspendResumeButton.setText(self.SUSPEND_LABEL)
layout.addWidget(self.m_suspendResumeButton)
volumeBox = QHBoxLayout()
volumeLabel = QLabel("Volume:")
self.m_volumeSlider = QSlider(Qt.Horizontal,
minimum=0,
maximum=100,
singleStep=10,
valueChanged=self.volumeChanged)
volumeBox.addWidget(volumeLabel)
volumeBox.addWidget(self.m_volumeSlider)
layout.addLayout(volumeBox)
window = QWidget()
window.setLayout(layout)
self.setCentralWidget(window)
def initializeAudio(self):
self.m_pullTimer = QTimer(self, timeout=self.pullTimerExpired)
self.m_pullMode = True
self.m_format = QAudioFormat()
self.m_format.setSampleRate(self.DataSampleRateHz)
self.m_format.setChannelCount(1)
self.m_format.setSampleSize(16)
self.m_format.setCodec('audio/pcm')
self.m_format.setByteOrder(QAudioFormat.LittleEndian)
self.m_format.setSampleType(QAudioFormat.SignedInt)
info = QAudioDeviceInfo(QAudioDeviceInfo.defaultOutputDevice())
if not info.isFormatSupported(self.m_format):
qWarning("Default format not supported - trying to use nearest")
self.m_format = info.nearestFormat(self.m_format)
self.m_generator = Generator(self.m_format,
self.DurationSeconds * 1000000,
self.ToneSampleRateHz, self)
self.createAudioOutput()
def createAudioOutput(self):
self.m_audioOutput = QAudioOutput(self.m_device, self.m_format)
self.m_audioOutput.notify.connect(self.notified)
self.m_audioOutput.stateChanged.connect(self.handleStateChanged)
self.m_generator.start()
self.m_audioOutput.start(self.m_generator)
self.m_volumeSlider.setValue(self.m_audioOutput.volume() * 100)
def deviceChanged(self, index):
self.m_pullTimer.stop()
self.m_generator.stop()
self.m_audioOutput.stop()
self.m_device = self.m_deviceBox.itemData(index)
self.createAudioOutput()
def volumeChanged(self, value):
if self.m_audioOutput is not None:
self.m_audioOutput.setVolume(value / 100.0)
def notified(self):
qWarning(
"bytesFree = %d, elapsedUSecs = %d, processedUSecs = %d" %
(self.m_audioOutput.bytesFree(), self.m_audioOutput.elapsedUSecs(),
self.m_audioOutput.processedUSecs()))
def pullTimerExpired(self):
if self.m_audioOutput is not None and self.m_audioOutput.state(
) != QAudio.StoppedState:
chunks = self.m_audioOutput.bytesFree(
) // self.m_audioOutput.periodSize()
for _ in range(chunks):
data = self.m_generator.read(self.m_audioOutput.periodSize())
if data is None or len(
data) != self.m_audioOutput.periodSize():
break
self.m_output.write(data)
def toggleMode(self):
self.m_pullTimer.stop()
self.m_audioOutput.stop()
if self.m_pullMode:
self.m_modeButton.setText(self.PULL_MODE_LABEL)
self.m_output = self.m_audioOutput.start()
self.m_pullMode = False
self.m_pullTimer.start(20)
else:
self.m_modeButton.setText(self.PUSH_MODE_LABEL)
self.m_pullMode = True
self.m_audioOutput.start(self.m_generator)
self.m_suspendResumeButton.setText(self.SUSPEND_LABEL)
def toggleSuspendResume(self):
if self.m_audioOutput.state() == QAudio.SuspendedState:
qWarning("status: Suspended, resume()")
self.m_audioOutput.resume()
self.m_suspendResumeButton.setText(self.SUSPEND_LABEL)
elif self.m_audioOutput.state() == QAudio.ActiveState:
qWarning("status: Active, suspend()")
self.m_audioOutput.suspend()
self.m_suspendResumeButton.setText(self.RESUME_LABEL)
elif self.m_audioOutput.state() == QAudio.StoppedState:
qWarning("status: Stopped, resume()")
self.m_audioOutput.resume()
self.m_suspendResumeButton.setText(self.SUSPEND_LABEL)
elif self.m_audioOutput.state() == QAudio.IdleState:
qWarning("status: IdleState")
stateMap = {
QAudio.ActiveState: "ActiveState",
QAudio.SuspendedState: "SuspendedState",
QAudio.StoppedState: "StoppedState",
QAudio.IdleState: "IdleState"
}
def handleStateChanged(self, state):
qWarning("state = " + self.stateMap.get(state, "Unknown"))
class ToneWindow(QWidget):
"""
Central Widget of the application.
Defines the format of the audio channel and initializes the midi listener,
generators and modifiers. The midi listener is operated on separate thread
handled by a Qthread. The view components are initialized and put together
in a general layout using the CreateUI method.
"""
def __init__(self, parent=None):
print("Tone Widget inst")
QWidget.__init__(self, parent)
self.activeGen = ActiveGen(sampleRate=SAMPLE_RATE,
samplePerRead=Meep.SAMPLES_PER_READ)
self.createUI(self)
# Meep playback format initialization
format = QAudioFormat()
format.setChannelCount(AUDIO_CHANS)
format.setSampleRate(SAMPLE_RATE)
format.setSampleSize(SAMPLE_SIZE)
format.setCodec("audio/pcm")
format.setByteOrder(QAudioFormat.LittleEndian)
format.setSampleType(QAudioFormat.SignedInt)
# check compatibility of format with device
info = QAudioDeviceInfo(QAudioDeviceInfo.defaultOutputDevice())
if info.isFormatSupported(format) is False:
print(
"Raw audio format not supported by backend, cannot play audio."
)
return None
# Audio Output init
self.output = QAudioOutput(format, self)
output_buffer_size = \
int(2*SAMPLE_RATE \
*CTRL_INTERVAL/1000)
self.output.setBufferSize(output_buffer_size)
# initialize and start the audio playback
self.generator = Meep(format, self.activeGen, self)
self.generator.start()
self.output.start(self.generator)
# Create the port reader object
self.midiListener = MidiPortReader()
# Create a thread which will read it
self.listenerThread = QThread()
# move QObjet to a new thread
self.midiListener.moveToThread(self.listenerThread)
# Connect the signals to slot functions
self.midiListener.newNoteFrequency.connect(self.activeGen.setFreq)
self.midiListener.newNotePress.connect(self.activeGen.setNote)
# Tell Qt the function to call
# when it starts the thread
self.listenerThread.started.connect(self.midiListener.listener)
# start the thread
self.listenerThread.start()
def createUI(self, parent):
"""Receives a parent QWidget and produces the view in it"""
print("Create UI")
slidLayout = QHBoxLayout()
vLayout = QVBoxLayout(self)
vLayout.setSpacing(10)
# initialize title label and UI constraints
self.title = QLabel(self)
self.title.setText("Tone Generator")
self.title.setMargin(10)
self.title.setFixedHeight(50)
self.title.setFixedWidth(400)
self.title.setAlignment(Qt.AlignCenter)
# set title style
self.title.setStyleSheet("""
font-family : "Lucida Console";
font-size: 20px;
color : #F2F2F2;
border: 2px solid green;
border-radius: 4px;
border-color: #082126;
padding: 2px;
background-color : #0E3740 ;
""")
# set background color
self.setStyleSheet(" background-color : #082126 ; ")
# initialize the view components
filtSlider = sliders.FiltSlider(self.activeGen,
parent).createUI(parent)
adsrSlider = sliders.ADSRSlider(self.activeGen,
parent).createUI(parent)
masterSlider = sliders.MasterSlider(self.activeGen,
parent).createUI(parent)
genSlider = sliders.GenSlider(self.activeGen, parent).createUI(parent)
# add the two sliders and ADSR layout in a horizontal layout
slidLayout.addStretch(1)
slidLayout.addWidget(filtSlider)
slidLayout.addStretch(1)
slidLayout.addWidget(adsrSlider, Qt.AlignHCenter)
slidLayout.addStretch(1)
slidLayout.addWidget(masterSlider)
slidLayout.addStretch(1)
# put all components in the vertical layout
vLayout.addWidget(self.title)
vLayout.setAlignment(self.title, Qt.AlignCenter)
vLayout.addSpacing(20)
vLayout.addLayout(slidLayout)
vLayout.addSpacing(20)
vLayout.addWidget(genSlider)
vLayout.setAlignment(genSlider, Qt.AlignCenter)
class MainWindow(QWidget):
def __init__(self, parent=None):
QWidget.__init__(self, parent)
format = QAudioFormat()
format.setChannelCount(AUDIO_CHANS)
format.setSampleRate(SAMPLE_RATE)
format.setSampleSize(SAMPLE_SIZE)
format.setCodec("audio/pcm")
format.setByteOrder(QAudioFormat.LittleEndian)
format.setSampleType(QAudioFormat.SignedInt)
self.output = QAudioOutput(format, self)
output_buffer_size = \
int(2*CTRL_INTERVAL/1000)
self.output.setBufferSize(output_buffer_size)
self.generator = Generator(format, self)
self.midiListener = MidiPortReader()
self.listenerThread = QThread()
self.midiListener.moveToThread(self.listenerThread)
self.listenerThread.started.connect(self.midiListener.listener)
self.midiListener.addVoice.connect(self.generator.addVoice)
self.midiListener.removeVoice.connect(self.generator.removeVoice)
self.createUI()
self.pslider.valueChanged.connect(self.generator.changeP)
self.fslider.valueChanged.connect(self.generator.qCalc)
self.semiDown.clicked.connect(self.smDown)
self.semiUp.clicked.connect(self.smUp)
self.octaveDown.clicked.connect(self.ovDown)
self.octaveUp.clicked.connect(self.ovUp)
self.listenerThread.start()
self.generator.start()
self.output.start(self.generator)
def createUI(self):
label = QLabel()
label.setText("Pulse ammount")
self.pslider = QSlider(Qt.Horizontal)
self.pslider.setMinimum(0)
self.pslider.setMaximum(100)
self.pslider.setValue(60)
flabel = QLabel()
flabel.setText("Q")
self.fslider = QSlider(Qt.Horizontal)
self.fslider.setMinimum(10)
self.fslider.setMaximum(10000)
self.fslider.setValue(1000)
self.octaveUp = QPushButton("+12")
self.octaveDown = QPushButton("-12")
self.semiUp = QPushButton("+1")
self.semiDown = QPushButton("-1")
self.transLabel = QLabel(str(self.generator.transpose))
vl = QVBoxLayout(self)
hl = QHBoxLayout()
hl.addWidget(label)
hl.addStretch(1)
hl.addWidget(self.pslider)
vl.addLayout(hl)
fhl = QHBoxLayout()
fhl.addWidget(flabel)
fhl.addStretch(1)
fhl.addWidget(self.fslider)
vl.addLayout(fhl)
bhl = QHBoxLayout()
bhl.addWidget(self.octaveDown)
bhl.addWidget(self.semiDown)
bhl.addWidget(self.transLabel)
bhl.addWidget(self.semiUp)
bhl.addWidget(self.octaveUp)
vl.addLayout(bhl)
def transposeChange(self, amt):
self.generator.transpose = self.generator.transpose + amt
self.transLabel.setText(str(self.generator.transpose))
@pyqtSlot()
def ovUp(self):
self.transposeChange(12)
@pyqtSlot()
def ovDown(self):
self.transposeChange(-12)
@pyqtSlot()
def smUp(self):
self.transposeChange(1)
@pyqtSlot()
def smDown(self):
self.transposeChange(-1)
class SideToneWidget(QWidget):
def __init__(self, parent, the_settings):
super().__init__(parent)
# Save link to main window
self.main_window = parent
# Save link to settings object
self.settings = the_settings
# Get the status bar
self.status_bar = parent.statusBar()
# just the time
self.time = QTime()
self.time.start()
# Slot that will point to a QAudioInput some day
self.input_device = None
# Slot that will point to a QAudioOutput in time
self.otput_device = None
# set up layout, creating:
# self.input_info_list, list of QAudioInfo for inputs
# self.cb_inputs, combox of input names in same order
# self.otput_info_list, list of QAudioInfo for outputs
# self.cb_otputs, combox of output names in same order
# self.volume, volume slider
# self.mute, mute checkbox
self._uic()
# Connect up signals to slots. Up to this point, the changes that
# _uic() made in e.g. the volume or mute, or the combobox selections,
# raised signals that were not connected. Now connect the signals
# so that user-changes go to our slots for handling.
# Mute button goes to mute_change
self.mute.stateChanged.connect(self.mute_change)
# Change in volume goes to volume_change
self.volume.valueChanged.connect(self.volume_change)
# Changes in the combox selections go to in_device and ot_device
self.cb_inputs.currentIndexChanged.connect(self.in_dev_change)
self.cb_otputs.currentIndexChanged.connect(self.ot_dev_change)
# Now pretend the user has made a selection of the in and out devices.
# That should result in activating everythings.
self.in_dev_change(self.cb_inputs.currentIndex())
self.ot_dev_change(self.cb_otputs.currentIndex())
# Method to disconnect the input and output devices, if they exist.
# This is called prior to any change in device selection.
# Note that the QWidget class has an existing method disconnect(),
# and we do not want to override that, so that name is not used.
def disconnect_devices(self):
# If an output device exists, make it stop. That prevents it
# trying to pull any data from the input device if any.
if self.otput_device is not None:
self.otput_device.stop()
# If an input device exists, make it stop also. That means it
# loses track of the output device it was formerly connected to.
if self.input_device is not None:
self.input_device.stop()
# Method to connect the input and output devices, if both exist. This is
# called after making any change in device selection.
def reconnect_devices(self):
if (self.input_device is not None) \
and (self.otput_device is not None ) :
# Connect the devices by asking the OUTput device for its
# QIODevice, and passing that to the INput device's start()
# method. This could equally well be done the other way,
# by passing the input dev's IODevice to the output device.
self.input_device.start(self.otput_device.start())
#self.otput_device.start( self.input_device.start() )
# In case the output device was just created, set its volume.
self.set_volume()
# Method to set the volume on the output device. (The input device volume
# is always 1.0.) This is called on any change of the volume slider or
# of the Mute button or of the output device choice.
def set_volume(self):
if self.mute.isChecked():
# Mute is ON, set volume to 0 regardless of volume slider
volume = 0.0
else:
# Mute is OFF, set volume to float version of volume slider
volume = self.volume.value() / 100
if self.otput_device:
# an output device exists (almost always true), set it
self.otput_device.setVolume(volume)
# Slot entered upon any change in the volume slider widget.
def volume_change(self, new_level):
if self.mute.isChecked():
# The Mute button is ON; assume the user wants it OFF, else why
# move the slider? Note this causes a call to set_volume().
self.mute.setChecked(False)
else:
# The Mute button is OFF, just change the volume.
self.set_volume()
# Slot entered upon toggling of the mute switch, by the user or by the
# code calling mute.setChecked(). Make sure the volume is set appropriately.
def mute_change(self, onoff):
self.set_volume()
# Slots for selection of the input and output devices. On startup we have
# neither an input nor an output device. We do not know which combox the
# user will fiddle with first.
# Slot entered upon any change in the selection of the input device
# combo box. The argument is the new index of the list of values.
def in_dev_change(self, new_index):
# Disconnect and stop the devices if they are connected.
self.disconnect_devices()
self.input_device = None # device object goes out of scope
# Get the QAudioDeviceInfo corresponding to this index of the combox.
audio_info = self.input_info_list[new_index]
# Create a new QAudioInput based on that.
preferred_format = audio_info.preferredFormat()
self.input_device = QAudioInput(audio_info, preferred_format)
# the input device volume is always 1.0, wide open.
self.input_device.setVolume(1.0)
# The choice of buffer size has a major impact on the lag. It needs
# to be small or there is severe echo; but if it is too small, there
# is a sputtering or "motor-boating" effect.
self.input_device.setBufferSize(384)
# hook up possible debug status display
self.input_device.stateChanged.connect(self.in_dev_state_change)
# reconnect the devices if possible.
self.reconnect_devices()
# Slot entered upon any change in the selection of output. The argument
# is the index to the list of output devices in the combobox.
def ot_dev_change(self, new_index):
print('index', new_index)
# Disconnect and stop the devices if they are connected.
self.disconnect_devices()
self.otput_device = None # device object goes out of scope
# Get the QAudioDeviceInfo corresponding to this index of the combox.
audio_info = self.otput_info_list[new_index]
# Create a new QAudioOutput based on that.
preferred_format = audio_info.preferredFormat()
self.otput_device = QAudioOutput(audio_info, preferred_format)
self.otput_device.setVolume(0) # reconnect will set correct volume
# hook up possible debug status display
self.otput_device.stateChanged.connect(self.ot_dev_state_change)
# reconnect the devices if possible. Which also sets the volume.
self.reconnect_devices()
# Show some text in the main-window status bar for 1 second, more or less.
def show_status(self, text, duration=1000):
self.status_bar.showMessage(text, duration)
# Slots called on any "state" change of an audio device. Optionally
# show the state in the main window status bar.
def in_dev_state_change(self, new_state):
#self.show_status(
#'{} in dev state {}'.format(self.time.elapsed(),int(new_state))
#)
pass
def ot_dev_state_change(self, new_state):
#self.show_status(
#'{} ot dev state {}'.format(self.time.elapsed(),int(new_state))
#)
pass
# Close events are only received by a top-level widget. When our top-level
# widget gets one, indicating the app is done, it calls this method.
def closeEvent(self, event):
# if we have devices, make them stop.
self.disconnect_devices()
# if the devices exist, reset them and then trash them.
if self.otput_device is not None:
self.otput_device.reset()
self.otput_device = None
if self.input_device is not None:
self.input_device.reset()
self.input_device = None
# Save the current selection of the input and output combo boxes,
# in the settings file.
in_dev_name = self.cb_inputs.currentText()
self.settings.setValue('in_dev_name', in_dev_name)
ot_dev_name = self.cb_otputs.currentText()
self.settings.setValue('ot_dev_name', ot_dev_name)
# Save the volume setting and mute status in the settings.
self.settings.setValue('volume', self.volume.value())
self.settings.setValue('mute_status', int(self.mute.isChecked()))
def _uic(self):
'''
set up our layout which consists of:
Big Honkin' Label
[input combobox] [output combobox]
[volume slider] [x] Mute
Hooking the signals to useful slots is the job
of __init__. Here just make the layout.
'''
self.setMinimumWidth(400)
# Create the big honkin' label and logo
icon_pixmap = QPixmap(':/icon.png').scaledToWidth(64)
icon_label = QLabel()
icon_label.setPixmap(icon_pixmap)
text_label = QLabel("Sidetone!")
hb_label = QHBoxLayout()
hb_label.addStretch(1)
hb_label.addWidget(icon_label, 0)
hb_label.addWidget(text_label, 0)
hb_label.addStretch(1)
# Create a list of QAudioInfo objects for inputs
self.input_info_list = QAudioDeviceInfo.availableDevices(
QAudio.AudioInput)
if 0 == len(self.input_info_list):
self.input_info_list = [QAudioDeviceInfo.defaultInputDevice()]
# Make a list of the name-strings for those items.
in_dev_names = [
audio_info.deviceName() for audio_info in self.input_info_list
]
# Create a combo box and populate it with those names
self.cb_inputs = QComboBox()
self.cb_inputs.addItems(in_dev_names)
# If the in_dev_name from the previous run is in the current list,
# make it current, otherwise pick the first item.
in_dev_name = self.settings.value('in_dev_name', 'unknown')
if in_dev_name in in_dev_names:
self.cb_inputs.setCurrentIndex(in_dev_names.index(in_dev_name))
else:
self.cb_inputs.setCurrentIndex(0)
# Create a list of QAudioInfo objects for outputs
self.otput_info_list = QAudioDeviceInfo.availableDevices(
QAudio.AudioOutput)
if 0 == len(self.otput_info_list):
self.otput_info_list = [QAudioDeviceInfo.defaultOutputDevice()]
# Make a list of the name-strings of those things
ot_dev_names = [
audio_info.deviceName() for audio_info in self.otput_info_list
]
# Create a combo box and populate it with those names
self.cb_otputs = QComboBox()
self.cb_otputs.addItems(ot_dev_names)
# If the ot_dev_name from the previous run is in the current list,
# make it the current choice in the box.
ot_dev_name = self.settings.value('ot_dev_name', 'unknown')
if ot_dev_name in ot_dev_names:
self.cb_otputs.setCurrentIndex(ot_dev_names.index(ot_dev_name))
else:
self.cb_otputs.setCurrentIndex(0)
#self.show_status(
#'{} inputs {} otputs'.format(len(self.input_info_list),len(self.otput_info_list))
#)
# Create a combo box and populate it with names of outputs
# Lay those two out aligned to the outside
hb_combos = QHBoxLayout()
hb_combos.addWidget(self.cb_inputs, 1)
hb_combos.addStretch(0)
hb_combos.addWidget(self.cb_otputs, 1)
# Create a volume slider from 0 to 100.
self.volume = QSlider(Qt.Horizontal, self)
self.volume.setMinimum(0)
self.volume.setMaximum(100)
self.volume.setTickInterval(10)
self.volume.setTickPosition(QSlider.TicksBothSides)
# set the volume slider to the value from the previous run, or zero.
self.volume.setValue(self.settings.value('volume', 0))
# Create a checkbox "Mute"
self.mute = QCheckBox('Mute')
# Set it to the value at the end of the last run, or to True
self.mute.setChecked(bool(self.settings.value('mute_status', 1)))
# Put those together in a row squeezed in the center
hb_volume = QHBoxLayout()
hb_volume.addStretch(1)
hb_volume.addWidget(self.volume, 1)
hb_volume.addWidget(self.mute, 0)
hb_volume.addStretch(1)
# Stack all those up as this widget's layout
vlayout = QVBoxLayout()
vlayout.addLayout(hb_label)
vlayout.addLayout(hb_combos)
vlayout.addLayout(hb_volume)
self.setLayout(vlayout)
class MayRenderer(QWidget):
shouldSave = pyqtSignal()
texsize = 512
samplerate = 44100
shaderHeader = '#version 130\nuniform float iTexSize;\nuniform float iBlockOffset;\nuniform float iSampleRate;\n\n'
def __init__(self, parent):
super().__init__()
self.parent = parent
self.blocksize = (self.texsize * self.texsize) / self.samplerate
self.initState()
self.initUI()
self.initAudio()
def initState(self):
self.playing = False
self.initVolume = 1
self.useWatchFile = False
self.watchFileName = ''
self.storeCodeIfNotWatching = ''
self.useSynDump = False
self.synDrumName = ''
self.synFileName = ''
def initUI(self):
self.mainLayout = QVBoxLayout()
self.codeLayout = QVBoxLayout()
self.codeButtonBar = QHBoxLayout()
self.codeWatchFileBar = QHBoxLayout()
self.renderBar = QHBoxLayout()
self.playbackBar = QHBoxLayout()
self.renderGroup = QGroupBox()
self.renderGroupLayout = QVBoxLayout()
self.renderGroupLayout.addLayout(self.renderBar)
self.renderGroupLayout.addLayout(self.playbackBar)
self.renderGroup.setLayout(self.renderGroupLayout)
self.renderGroup.setObjectName("renderGroup")
self.synGroupLayout = QHBoxLayout()
self.synGroup = QGroupBox()
self.synGroup.setLayout(self.synGroupLayout)
self.synDumpCheckBox = QCheckBox('Dump as')
self.synDrumNameBox = QLineEdit(self)
self.synFileNameBox = QLineEdit(self)
self.synFileButton = QPushButton('...')
self.synGroupLayout.addWidget(self.synDumpCheckBox, 1)
self.synGroupLayout.addWidget(self.synDrumNameBox, 2)
self.synGroupLayout.addWidget(QLabel('in'), .1)
self.synGroupLayout.addWidget(self.synFileNameBox, 5)
self.synGroupLayout.addWidget(self.synFileButton, 0.1)
self.synDumpCheckBox.stateChanged.connect(self.toggleSynDump)
self.synDrumNameBox.setPlaceholderText('drumname')
self.synDrumNameBox.textChanged.connect(self.setSynDrumName)
self.synFileNameBox.setPlaceholderText('some aMaySyn .syn file')
self.synFileNameBox.textChanged.connect(self.setSynFileName)
self.synFileButton.setMaximumWidth(40)
self.synFileButton.clicked.connect(self.chooseSynFile)
self.codeGroup = QGroupBox()
self.buttonCopy = QPushButton('↬ Clipboard', self)
self.buttonCopy.clicked.connect(self.copyToClipboard)
self.buttonPaste = QPushButton('Paste ↴', self)
self.buttonPaste.clicked.connect(self.pasteClipboard)
self.buttonClear = QPushButton('×', self)
self.buttonClear.clicked.connect(self.clearEditor)
self.codeEditor = QPlainTextEdit(self)
self.codeEditor.setLineWrapMode(QPlainTextEdit.WidgetWidth)
#self.codeEditor.setCenterOnScroll(True)
#self.codeEditor.textChanged.formatEditor()) # this gives a recursion problem, but how to filter e.g. tabs?
self.codeEditor.cursorPositionChanged.connect(self.updatePosLabel)
self.codeEditor.setTabStopWidth(14)
self.watchFileCheckBox = QCheckBox('watch file:', self)
self.watchFileCheckBox.stateChanged.connect(self.toggleWatchFile)
self.watchFileNameBox = QLineEdit(self)
self.watchFileNameBox.setPlaceholderText(
'use GLSL code file instead of the above editor...')
self.watchFileNameBox.textChanged.connect(self.setWatchFileName)
self.buttonWatchFile = QPushButton('...', self)
self.buttonWatchFile.setMaximumWidth(40)
self.buttonWatchFile.clicked.connect(self.chooseWatchFile)
self.renderButton = QPushButton(self)
self.renderButton.clicked.connect(self.pressRenderShader)
self.renderLengthBox = QDoubleSpinBox(self)
self.renderLengthBox.setMinimum(0)
self.renderLengthBox.setValue(4 * self.blocksize - .01)
self.renderLengthBox.setSingleStep(self.blocksize)
self.renderLengthBox.setSuffix(' sec')
self.renderLengthBox.setToolTip('render length')
self.renderBpmBox = QSpinBox(self)
self.renderBpmBox.setRange(1, 999)
self.renderBpmBox.setValue(160)
self.renderBpmBox.setPrefix('BPM ')
self.renderBpmBox.setToolTip('--> determines SPB')
self.playbackVolumeSlider = QSlider(Qt.Horizontal)
self.playbackVolumeSlider.setMaximum(100)
self.playbackVolumeSlider.setValue(self.initVolume * 100)
self.playbackVolumeSlider.setToolTip('volume')
self.playbackVolumeSlider.sliderMoved.connect(self.setVolume)
self.renderBar.addWidget(self.renderButton, 60)
self.renderBar.addWidget(self.renderBpmBox, 20)
self.renderBar.addWidget(self.renderLengthBox, 20)
self.progressBar = QProgressBar(self)
self.progressBar.setEnabled(False)
self.pauseButton = QPushButton(self)
self.pauseButton.setEnabled(False)
self.pauseButton.clicked.connect(self.pressPauseButton)
self.playbackBar.addWidget(self.progressBar, 60)
self.playbackBar.addWidget(self.playbackVolumeSlider, 20)
self.playbackBar.addWidget(self.pauseButton, 20)
self.codeButtonBar.addWidget(self.buttonCopy)
self.codeButtonBar.addWidget(self.buttonPaste)
self.codeButtonBar.addWidget(self.buttonClear)
self.codeWatchFileBar.addWidget(self.watchFileCheckBox)
self.codeWatchFileBar.addWidget(self.watchFileNameBox)
self.codeWatchFileBar.addWidget(self.buttonWatchFile)
self.codeHeader = QHBoxLayout()
self.codePosLabel = QLabel('(0,0)')
self.codeHeader.addWidget(QLabel('GLSL code'))
self.codeHeader.addStretch()
self.codeHeader.addWidget(self.codePosLabel)
self.codeLayout.addLayout(self.codeHeader)
self.codeLayout.addLayout(self.codeButtonBar)
self.codeLayout.addWidget(self.codeEditor)
self.codeLayout.addLayout(self.codeWatchFileBar)
self.codeGroup.setLayout(self.codeLayout)
self.mainLayout.addWidget(self.synGroup)
self.mainLayout.addWidget(self.codeGroup)
self.mainLayout.addWidget(self.renderGroup)
self.updatePlayingUI()
self.setLayout(self.mainLayout)
def updatePlayingUI(self, keepActive=False):
self.renderButton.setText(
'shut the f**k up' if self.playing else 'send to hell')
if not self.playing and not keepActive:
self.progressBar.setValue(0)
self.progressBar.setEnabled(self.playing if not keepActive else True)
self.pauseButton.setEnabled(self.playing if not keepActive else True)
self.pauseButton.setText('||' if (
self.playing and self.audiooutput.state() != QAudio.SuspendedState
) else '▶')
def initAudio(self):
self.audioformat = QAudioFormat()
self.audioformat.setSampleRate(self.samplerate)
self.audioformat.setChannelCount(2)
self.audioformat.setSampleSize(32)
self.audioformat.setCodec('audio/pcm')
self.audioformat.setByteOrder(QAudioFormat.LittleEndian)
self.audioformat.setSampleType(QAudioFormat.Float)
# self.audiodeviceinfo = QAudioDeviceInfo(QAudioDeviceInfo.defaultOutputDevice())
self.audiooutput = QAudioOutput(self.audioformat)
self.audiooutput.setVolume(self.initVolume)
def paste(self, source):
self.codeEditor.clear()
source = source.replace(4 * ' ', '\t').replace(3 * ' ', '\t')
self.codeEditor.insertPlainText(source)
#self.codeEditor.setFocus() #TODO: think about whether we want this
self.codeEditor.ensureCursorVisible()
def pasteClipboard(self):
self.paste(self.shaderHeader + QApplication.clipboard().text())
def copyToClipboard(self):
text = self.codeEditor.toPlainText().replace('\t', 4 * ' ')
QApplication.clipboard().setText(text)
def clearEditor(self):
self.codeEditor.setPlainText('')
self.codeEditor.setFocus()
def updatePosLabel(self):
cursor = self.codeEditor.textCursor()
self.codePosLabel.setText(
f'({cursor.blockNumber()},{cursor.positionInBlock()})')
# def formatEditor(self):
# plainText = self.codeEditor.toPlainText().replace('\t', 4*' ')
# self.codeEditor.setPlainText(plainText)
def toggleSynDump(self, state):
self.useSynDump = (state == Qt.Checked)
self.shouldSave.emit()
def chooseSynFile(self):
dialogResult, _ = QFileDialog.getSaveFileName(
self, 'Choose SYN definition file', '',
'aMaySyn definition files (*.syn);;All files (*)')
print(dialogResult)
self.synFileNameBox.setText(dialogResult)
self.synDumpCheckBox.setCheckState(Qt.Checked)
if self.synFileName == '':
self.synFileNameBox.setFocus()
self.shouldSave.emit()
def setSynFileName(self):
self.synFileName = self.synFileNameBox.text()
self.shouldSave.emit()
def setSynDrumName(self):
self.synDrumName = self.synDrumNameBox.text()
self.shouldSave.emit()
def setSynDumpParameters(self, useSynDump, synFileName, synDrumName):
self.synDumpCheckBox.setChecked(useSynDump)
self.synFileNameBox.setText(synFileName)
self.synDrumNameBox.setText(synDrumName)
def toggleWatchFile(self, state):
if not self.useWatchFile and state == Qt.Checked:
self.storeCodeIfNotWatching = self.codeEditor.toPlainText()
self.useWatchFile = (state == Qt.Checked)
self.codeEditor.setEnabled(not self.useWatchFile)
if self.useWatchFile:
self.showWatchFileInfo()
else:
self.codeEditor.setPlainText(self.storeCodeIfNotWatching)
def chooseWatchFile(self):
dialogResult = QFileDialog.getOpenFileName(
self, 'Choose file with GLSL code', '',
'GLSL files (*.glsl);;All files (*)')
print(dialogResult)
self.watchFileNameBox.setText(dialogResult[0])
self.watchFileCheckBox.setCheckState(Qt.Checked)
self.shouldSave.emit()
def setWatchFileName(self):
self.watchFileName = self.watchFileNameBox.text()
self.showWatchFileInfo()
def showWatchFileInfo(self):
if self.useWatchFile:
fileInfo = QFileInfo(self.watchFileName)
infoText = 'use code from file:\n' + self.watchFileName + '\n' + (
'(exists)' if fileInfo.exists() else '(doesn\'t exist)')
self.codeEditor.setPlainText(infoText)
def pressRenderShader(self):
self.playing = not self.playing
if self.playing:
self.renderShaderAndPlay()
else:
self.stopShader()
def pressPauseButton(self):
state = self.audiooutput.state()
if state == QAudio.ActiveState:
self.audiooutput.suspend()
elif state == QAudio.SuspendedState:
self.audiooutput.resume()
self.updatePlayingUI(keepActive=True)
def stopShader(self):
self.audiooutput.stop()
self.updatePlayingUI()
def renderShaderAndPlay(self, file=None):
self.playing = True
self.updatePlayingUI()
shaderSource = self.shaderHeader + """
uniform float SPB;
void main()
{
float t = (iBlockOffset + gl_FragCoord.x + gl_FragCoord.y*iTexSize) / iSampleRate;
t = floor(t*BITS.) / BITS.;
vec2 s = .2 * vec2(sin(2.*3.14159*49.*t*(1.+t)*SPB*2.667)); // let's make it fun and squeaky
vec2 v = floor((0.5+0.5*s)*65535.0);
vec2 vl = mod(v,256.0)/255.0;
vec2 vh = floor(v/256.0)/255.0;
gl_FragColor = vec4(vl.x,vh.x,vl.y,vh.y);
}
"""
# this is the SUPER FUN BITCRUSHER for the test shader
nr_bits = randint(128, 8192)
shaderSource = shaderSource.replace('BITS', str(nr_bits))
print(nr_bits, 'bits for the SUPER FUN BITCRUSHER in the test shader.')
starttime = datetime.now()
try:
if self.useWatchFile:
watchFile = QFile(self.watchFileName)
if not watchFile.open(QFile.ReadOnly | QFile.Text):
QMessageBox.warning(
self, "Öhm... blöd.",
"File öffnen ging nicht. Is genügend Pfeffer drauf?")
self.playing = False
self.updatePlayingUI()
return
textStream = QTextStream(watchFile)
textStream.setCodec('utf-8')
shaderSource = self.shaderHeader + textStream.readAll()
else:
code = self.codeEditor.toPlainText()
if code:
shaderSource = code
except:
raise
uniforms = {}
SPB = 60 / float(self.renderBpmBox.value())
uniforms.update({'SPB': SPB})
print(self.renderLengthBox.value())
try:
duration = self.renderLengthBox.value()
except:
print('couldn\'t read duration field. take 10secs.')
duration = 10
glwidget = SFXGLWidget(self,
self.audioformat.sampleRate(),
duration,
self.texsize,
moreUniforms=uniforms)
glwidget.show()
log = glwidget.newShader(shaderSource)
print(log)
self.music = glwidget.music
floatmusic = glwidget.floatmusic
glwidget.hide()
glwidget.destroy()
if self.music == None:
return
self.renderLengthBox.setValue(round(glwidget.duration_real, 2) - .01)
self.bytearray = QByteArray(self.music)
self.audiobuffer = QBuffer(self.bytearray)
self.audiobuffer.open(QIODevice.ReadOnly)
endtime = datetime.now()
el = endtime - starttime
print("Compile time: {:.3f}s".format(el.total_seconds()))
self.audiooutput.stop()
self.audiooutput.start(self.audiobuffer)
self.audiooutput.setNotifyInterval(100)
self.audiooutput.stateChanged.connect(self.updatePlayingUI)
self.progressBar.setMaximum(self.audiobuffer.size())
self.audiooutput.notify.connect(self.proceedAudio)
if file is not None:
floatmusic_L = []
floatmusic_R = []
for n, sample in enumerate(floatmusic):
if n % 2 == 0:
floatmusic_L.append(sample)
else:
floatmusic_R.append(sample)
floatmusic_stereo = np.transpose(
np.array([floatmusic_L, floatmusic_R], dtype=np.float32))
wavfile.write(file, self.samplerate, floatmusic_stereo)
def proceedAudio(self):
# print(self.audiobuffer.pos() / self.audioformat.sampleRate())
self.progressBar.setValue(self.audiobuffer.pos())
if self.audiobuffer.atEnd():
self.audiooutput.stop()
self.playing = False
self.updatePlayingUI()
def setVolume(self):
self.audiooutput.setVolume(self.playbackVolumeSlider.value() * .01)
def dumpInSynFile(self, drumatizeL, drumatizeR, envCode, releaseTime):
if not self.synDumpCheckBox.isChecked():
return
if self.synDrumName == '':
print("specify a valid drum name!!")
return
if self.synFileName == '':
print("specify a valid .syn filename!!")
return
if not path.exists(self.synFileName):
open(self.synFileName, 'a').close()
uniqueEnv = f'_{self.synDrumName}ENV'
drumatizeL = drumatizeL.replace('__ENV', uniqueEnv)
drumatizeR = drumatizeR.replace('__ENV', uniqueEnv)
envCode = envCode.replace('__ENV', uniqueEnv).replace('\n', ' ')
parLine = f'param include src="{envCode}"\n'
synLine = f'maindrum {self.synDrumName} src="{drumatizeL}" srcr="{drumatizeR}" release={releaseTime}\n'
print(parLine, '\n', synLine)
tmpSynFile = 'tmp.syn'
copyfile(self.synFileName, tmpSynFile)
parWritten, synWritten = False, False
with open(tmpSynFile, 'r') as synFileHandle:
synFileLines = synFileHandle.readlines()
with open(self.synFileName, 'w') as synFileHandle:
for line in synFileLines:
parseLine = line.strip('\n').split()
if parseLine[0:2] == ['maindrum', self.synDrumName]:
synFileHandle.write(synLine)
synWritten = True
elif parseLine[0:2] == ['param', 'include'
] and line.find(uniqueEnv) != -1:
synFileHandle.write(parLine)
parWritten = True
else:
synFileHandle.write(line)
if not parWritten:
synFileHandle.write('\n' + parLine)
if not synWritten:
synFileHandle.write('\n' + synLine)
synFileHandle.close()
class AudioTest(QMainWindow):
PUSH_MODE_LABEL = "Enable push mode"
PULL_MODE_LABEL = "Enable pull mode"
SUSPEND_LABEL = "Suspend playback"
RESUME_LABEL = "Resume playback"
DurationSeconds = 1
ToneSampleRateHz = 600
DataSampleRateHz = 44100
def __init__(self):
super(AudioTest, self).__init__()
self.m_device = QAudioDeviceInfo.defaultOutputDevice()
self.m_output = None
self.initializeWindow()
self.initializeAudio()
def initializeWindow(self):
layout = QVBoxLayout()
self.m_deviceBox = QComboBox(activated=self.deviceChanged)
for deviceInfo in QAudioDeviceInfo.availableDevices(QAudio.AudioOutput):
self.m_deviceBox.addItem(deviceInfo.deviceName(), deviceInfo)
layout.addWidget(self.m_deviceBox)
self.m_modeButton = QPushButton(clicked=self.toggleMode)
self.m_modeButton.setText(self.PUSH_MODE_LABEL)
layout.addWidget(self.m_modeButton)
self.m_suspendResumeButton = QPushButton(
clicked=self.toggleSuspendResume)
self.m_suspendResumeButton.setText(self.SUSPEND_LABEL)
layout.addWidget(self.m_suspendResumeButton)
volumeBox = QHBoxLayout()
volumeLabel = QLabel("Volume:")
self.m_volumeSlider = QSlider(Qt.Horizontal, minimum=0, maximum=100,
singleStep=10, valueChanged=self.volumeChanged)
volumeBox.addWidget(volumeLabel)
volumeBox.addWidget(self.m_volumeSlider)
layout.addLayout(volumeBox)
window = QWidget()
window.setLayout(layout)
self.setCentralWidget(window)
def initializeAudio(self):
self.m_pullTimer = QTimer(self, timeout=self.pullTimerExpired)
self.m_pullMode = True
self.m_format = QAudioFormat()
self.m_format.setSampleRate(self.DataSampleRateHz)
self.m_format.setChannelCount(1)
self.m_format.setSampleSize(16)
self.m_format.setCodec('audio/pcm')
self.m_format.setByteOrder(QAudioFormat.LittleEndian)
self.m_format.setSampleType(QAudioFormat.SignedInt)
info = QAudioDeviceInfo(QAudioDeviceInfo.defaultOutputDevice())
if not info.isFormatSupported(self.m_format):
qWarning("Default format not supported - trying to use nearest")
self.m_format = info.nearestFormat(self.m_format)
self.m_generator = Generator(self.m_format,
self.DurationSeconds * 1000000, self.ToneSampleRateHz, self)
self.createAudioOutput()
def createAudioOutput(self):
self.m_audioOutput = QAudioOutput(self.m_device, self.m_format)
self.m_audioOutput.notify.connect(self.notified)
self.m_audioOutput.stateChanged.connect(self.handleStateChanged)
self.m_generator.start()
self.m_audioOutput.start(self.m_generator)
self.m_volumeSlider.setValue(self.m_audioOutput.volume() * 100)
def deviceChanged(self, index):
self.m_pullTimer.stop()
self.m_generator.stop()
self.m_audioOutput.stop()
self.m_device = self.m_deviceBox.itemData(index)
self.createAudioOutput()
def volumeChanged(self, value):
if self.m_audioOutput is not None:
self.m_audioOutput.setVolume(value / 100.0)
def notified(self):
qWarning("bytesFree = %d, elapsedUSecs = %d, processedUSecs = %d" % (
self.m_audioOutput.bytesFree(),
self.m_audioOutput.elapsedUSecs(),
self.m_audioOutput.processedUSecs()))
def pullTimerExpired(self):
if self.m_audioOutput is not None and self.m_audioOutput.state() != QAudio.StoppedState:
chunks = self.m_audioOutput.bytesFree() // self.m_audioOutput.periodSize()
for _ in range(chunks):
data = self.m_generator.read(self.m_audioOutput.periodSize())
if data is None or len(data) != self.m_audioOutput.periodSize():
break
self.m_output.write(data)
def toggleMode(self):
self.m_pullTimer.stop()
self.m_audioOutput.stop()
if self.m_pullMode:
self.m_modeButton.setText(self.PULL_MODE_LABEL)
self.m_output = self.m_audioOutput.start()
self.m_pullMode = False
self.m_pullTimer.start(20)
else:
self.m_modeButton.setText(self.PUSH_MODE_LABEL)
self.m_pullMode = True
self.m_audioOutput.start(self.m_generator)
self.m_suspendResumeButton.setText(self.SUSPEND_LABEL)
def toggleSuspendResume(self):
if self.m_audioOutput.state() == QAudio.SuspendedState:
qWarning("status: Suspended, resume()")
self.m_audioOutput.resume()
self.m_suspendResumeButton.setText(self.SUSPEND_LABEL)
elif self.m_audioOutput.state() == QAudio.ActiveState:
qWarning("status: Active, suspend()")
self.m_audioOutput.suspend()
self.m_suspendResumeButton.setText(self.RESUME_LABEL)
elif self.m_audioOutput.state() == QAudio.StoppedState:
qWarning("status: Stopped, resume()")
self.m_audioOutput.resume()
self.m_suspendResumeButton.setText(self.SUSPEND_LABEL)
elif self.m_audioOutput.state() == QAudio.IdleState:
qWarning("status: IdleState")
stateMap = {
QAudio.ActiveState: "ActiveState",
QAudio.SuspendedState: "SuspendedState",
QAudio.StoppedState: "StoppedState",
QAudio.IdleState: "IdleState"}
def handleStateChanged(self, state):
qWarning("state = " + self.stateMap.get(state, "Unknown"))
class ToneGenerator(QWidget):
def __init__(self, parent=None):
QWidget.__init__(self, parent)
super().__init__(parent)
# start new thread that constantly polls MIDI input
self.create_MIDI()
# create GUI (windows, slider, etc...)
self.create_UI(parent)
format = QAudioFormat()
self.create_AUDIO(format)
self.generator = Flute(format, self)
self.generator.start()
self.output.start(self.generator)
def create_AUDIO(self, format):
format.setChannelCount(AUDIO_CHANS)
format.setSampleRate(SAMPLE_RATE)
format.setSampleSize(SAMPLE_SIZE)
format.setCodec("audio/pcm")
format.setByteOrder(
QAudioFormat.LittleEndian
)
format.setSampleType(
QAudioFormat.SignedInt
)
self.output = QAudioOutput(format, self)
output_buffer_size = \
int(2*SAMPLE_RATE \
*CTRL_INTERVAL/1000)
self.output.setBufferSize(
output_buffer_size
)
def create_MIDI(self):
# Create the port reader object
self.midiListener = MidiPortReader()
# Create a thread which will read it
self.listenerThread = QThread()
# Take the object and move it
# to the new thread (it isn't running yet)
self.midiListener.moveToThread(self.listenerThread)
# Tell Qt the function to call
# when it starts the thread
self.listenerThread.started.connect(self.midiListener.listener)
# connect pyqtSignals to slots in ToneGenerator
self.midiListener.newNoteFrequency.connect(self.on_newNoteFrequency)
self.midiListener.newNoteVelocity.connect(self.on_newNoteVelocity)
self.midiListener.portClosed.connect(self.on_portClosed)
# Fingers in ears, eyes tight shut...
self.listenerThread.start()
# Good grief, IT WORKS!
def create_UI(self, parent):
# Create a slider to fine tune freq and two buttons
#self.octaveBox = QSlider(Qt.Horizontal)
#self.octaveBox.setMinimum(-100)
#self.octaveBox.setMaximum(100)
self.octaveBox = QSpinBox()
self.octaveBox.setRange(-5,5)
self.octaveLabel = QLabel("Octave: ")
self.quitButton = QPushButton(self.tr('&Quit'))
# create dropdown menu so user can choose midi device in use (populate list from data from midi listener object)
self.MIDIMenu = QComboBox()
self.MIDIMenu.addItems(self.midiListener.getMIDIDevices())
# create ADSR sliders
self.aSlider = QSlider(Qt.Vertical)
self.aSlider.setMinimum(1)
self.aSlider.setMaximum(50)
self.aSlider.setSliderPosition(1)
self.dSlider = QSlider(Qt.Vertical)
self.dSlider.setMinimum(1)
self.dSlider.setMaximum(50)
self.dSlider.setSliderPosition(8)
self.sSlider = QSlider(Qt.Vertical)
self.sSlider.setMinimum(1)
self.sSlider.setMaximum(100)
self.sSlider.setSliderPosition(80)
self.rSlider = QSlider(Qt.Vertical)
self.rSlider.setMinimum(1)
self.rSlider.setMaximum(100)
self.rSlider.setSliderPosition(50)
# No parent: we're going to add this
# to vLayout.
hLayout1 = QHBoxLayout()
hLayout1.addWidget(self.octaveLabel)
hLayout1.addWidget(self.octaveBox)
hLayout2 = QHBoxLayout()
hLayout2.addWidget(self.aSlider)
hLayout2.addWidget(self.dSlider)
hLayout2.addWidget(self.sSlider)
hLayout2.addWidget(self.rSlider)
hLayout3 = QHBoxLayout()
hLayout3.addWidget(self.MIDIMenu)
hLayout3.addWidget(self.quitButton)
# parent = self: this is the
# "top level" layout
vLayout = QVBoxLayout(self)
vLayout.addLayout(hLayout1)
vLayout.addLayout(hLayout2)
vLayout.addLayout(hLayout3)
# connect qt object signals to slots
self.quitButton.clicked.connect(self.quitClicked)
self.octaveBox.valueChanged.connect(self.changeOctave)
self.aSlider.valueChanged.connect(self.changeADSRParam)
self.dSlider.valueChanged.connect(self.changeADSRParam)
self.sSlider.valueChanged.connect(self.changeADSRParam)
self.rSlider.valueChanged.connect(self.changeADSRParam)
self.MIDIMenu.currentIndexChanged[str].connect(self.changeMIDIDevice)
# this isn't a @pyqtSlot(), the text is passed directly to the function
def changeMIDIDevice(self, dev):
self.midiListener.setMIDIDevice(dev)
@pyqtSlot()
def quitClicked(self):
self.close()
@pyqtSlot()
def changeOctave(self):
#scale slider value to freq and pass to subclass to update filter
self.generator.setOctave(self.octaveBox.value())
@pyqtSlot(float)
def on_newNoteFrequency(self, freq):
# change value of filter cutoff so it sounds like we're playing a different note
self.generator.updateFilter(freq)
@pyqtSlot(int)
def on_newNoteVelocity(self, value):
# note_off message doesn't work with shit USB keyboards, so we simulate a note_off message with the velocity
if value != 0:
self.generator.playNote()
else:
self.generator.stopNote()
@pyqtSlot()
def on_portClosed(self):
# when port has closed, clear drop down menu and rescan for MIDI devices
self.MIDIMenu.clear()
self.MIDIMenu.addItems(self.midiListener.getMIDIDevices())
@pyqtSlot()
def changeADSRParam(self):
self.generator.updateADSR(self.aSlider.value()/10, self.dSlider.value()/10, self.sSlider.value()/100, self.rSlider.value()/10)
class Window(QWidget):
volSlide=pyqtSignal(int)
def __init__(self,parent=None):
#UI
QWidget.__init__(self,parent)
self.create_UI(parent)
#audio formatting
format=QAudioFormat()
format.setChannelCount(AUDIO_CHANS)
format.setSampleRate(SAMPLE_RATE)
format.setSampleSize(SAMPLE_SIZE)
format.setCodec("audio/pcm")
format.setByteOrder(
QAudioFormat.LittleEndian
)
format.setSampleType(
QAudioFormat.SignedInt
)
self.output=QAudioOutput(format,self)
output_buffer_size=\
int(2*SAMPLE_RATE \
*CTRL_INTERVAL/1000)
self.output.setBufferSize(
output_buffer_size
)
self.generator=Generator(format,self)
#THREADS
self.midiListener=MidiPortReader()
self.listenerThread=QThread()
self.midiListener.moveToThread(
self.listenerThread
)
self.listenerThread.started.connect(
self.midiListener.listener
)
self.listenerThread.start()
self.midiListener.noteOff.connect(self.generator.noteOff)
self.midiListener.noteVelocity.connect(self.generator.noteVelocity)
self.midiListener.noteOn.connect(self.generator.noteOn)
self.volumeSlider.valueChanged.connect(self.generator.volSlide)
self.qfacSlider.valueChanged.connect(self.generator.qFactor)
self.generator.start()
self.output.start(self.generator)
def create_UI(self,parent):
rockLabel=QLabel()
rockLabel.setText("Let's ROCK!!!")
volLabel=QLabel()
volLabel.setText("Volume")
self.volumeSlider=QSlider(Qt.Horizontal)
self.volumeSlider.setMinimum(0)
self.volumeSlider.setMaximum(100)
qfacLabel=QLabel()
qfacLabel.setText("Q-Factor")
self.qfacSlider=QSlider(Qt.Horizontal)
self.qfacSlider.setMinimum(0)
self.qfacSlider.setMaximum(1000)
self.qfacSlider.setValue(5000)
self.quitButton=\
QPushButton(self.tr('&Quit'))
self.volSlide.emit(7)
self.lynch=QLabel()
self.halfDown=QPushButton("+1")
self.halfUp=QPushButton("-1")
pixmap=QPixmap()
pixmap.load('lynch2.jpeg')
pixmap=pixmap.scaledToWidth(200)
self.lynch.setPixmap(pixmap)
vLayout=QVBoxLayout(self)
h0Layout=QHBoxLayout()
h0Layout.addWidget(rockLabel)
h0Layout.addStretch(1)
h0Layout.addWidget(self.lynch)
vLayout.addLayout(h0Layout)
hLayout=QHBoxLayout()
hLayout.addWidget(volLabel)
hLayout.addStretch(1)
hLayout.addWidget(self.volumeSlider)
vLayout.addLayout(hLayout)
h2Layout=QHBoxLayout()
h2Layout.addWidget(qfacLabel)
h2Layout.addStretch(1)
h2Layout.addWidget(self.qfacSlider)
vLayout.addLayout(h2Layout)
self.quitButton.clicked.connect(
self.quitClicked
)
@pyqtSlot()
def quitClicked(self):
self.close()
class AudioWidget(QWidget):
def __init__(self, parent=None):
QWidget.__init__(self, parent)
self.format = None
self.output = None
self.buffer = QBuffer()
self.volumeSlider = QSlider(Qt.Horizontal)
self.volumeSlider.setMaximum(10)
self.volumeSlider.setPageStep(1)
self.volumeSlider.setValue(5)
self.playButton = QPushButton()
self.playButton.setIcon(QIcon("icons/play.png"))
self.stopButton = QPushButton()
self.stopButton.setIcon(QIcon("icons/stop.png"))
self.volumeSlider.valueChanged.connect(self.change_volume)
self.playButton.clicked.connect(self.play_pause)
self.stopButton.clicked.connect(self.stop)
layout = QHBoxLayout(self)
layout.addWidget(self.playButton)
layout.addWidget(self.stopButton)
layout.addWidget(self.volumeSlider)
layout.addStretch()
def stop(self):
if self.output:
if self.output.state() != QAudio.StoppedState:
self.output.stop()
def set_data(self, mono_sig, sr):
# if not self.format:
self.format = QAudioFormat()
self.format.setChannelCount(1)
self.format.setSampleRate(sr)
#numpy is in bites, qt in bits
self.format.setSampleSize(mono_sig.dtype.itemsize * 8)
self.format.setCodec("audio/pcm")
self.format.setByteOrder(QAudioFormat.LittleEndian)
self.format.setSampleType(QAudioFormat.Float)
self.output = QAudioOutput(self.format, self)
self.output.stateChanged.connect(self.audio_state_changed)
#change the content without stopping playback
p = self.buffer.pos()
if self.buffer.isOpen():
self.buffer.close()
self.data = mono_sig.tobytes()
self.buffer.setData(self.data)
self.buffer.open(QIODevice.ReadWrite)
self.buffer.seek(p)
def audio_state_changed(self, new_state):
#adjust the button icon
if new_state != QAudio.ActiveState:
self.playButton.setIcon(QIcon("icons/play.png"))
else:
self.playButton.setIcon(QIcon("icons/pause.png"))
def cursor(self, t):
#seek towards the time t
#todo: handle EOF case
try:
if self.format:
t = max(0, t)
b = self.format.bytesForDuration(t * 1000000)
self.buffer.seek(b)
except:
print("cursor error")
def play_pause(self):
if self.output:
#(un)pause the audio output, keeps the buffer intact
if self.output.state() == QAudio.ActiveState:
self.output.suspend()
elif self.output.state() == QAudio.SuspendedState:
self.output.resume()
else:
self.buffer.seek(0)
self.output.start(self.buffer)
def change_volume(self, value):
if self.output:
#need to wrap this because slider gives not float output
self.output.setVolume(value / 10)
class SleaZynth(QMainWindow):
autoSaveFile = 'auto.save'
texsize = 512
samplerate = 44100
def __init__(self):
QMainWindow.__init__(self)
self.ui = Ui_MainWindow()
self.ui.setupUi(self)
self.show()
self.initModelView()
self.initSignals()
self.initState()
self.autoLoad()
self.initAMaySyn()
self.initAudio()
def keyPressEvent(self, event):
if event.key() == Qt.Key_Escape:
self.close()
elif event.key() == Qt.Key_F1:
self.debugOutput()
if event.modifiers() & Qt.ControlModifier:
if event.key() == Qt.Key_S:
self.autoSave()
elif event.key() == Qt.Key_L:
self.autoLoad()
elif event.key() == Qt.Key_T:
self.renderWhateverWasLast()
def closeEvent(self, event):
QApplication.quit()
def initSignals(self):
self.ui.btnChooseFilename.clicked.connect(self.loadAndImportMayson)
self.ui.btnImport.clicked.connect(self.importMayson)
self.ui.btnExport.clicked.connect(self.exportChangedMayson)
self.ui.checkAutoReimport.clicked.connect(self.toggleAutoReimport)
self.ui.checkAutoRender.clicked.connect(self.toggleAutoRender)
self.ui.editFilename.editingFinished.connect(
partial(self.updateStateFromUI, only='maysonFile'))
self.ui.editBPM.editingFinished.connect(
partial(self.updateStateFromUI, only='BPM'))
self.ui.spinBOffset.valueChanged.connect(
partial(self.updateStateFromUI, only='B_offset'))
self.ui.spinBStop.valueChanged.connect(
partial(self.updateStateFromUI, only='B_stop'))
self.ui.spinLevelSyn.valueChanged.connect(
partial(self.updateStateFromUI, only='level_syn'))
self.ui.spinLevelDrum.valueChanged.connect(
partial(self.updateStateFromUI, only='level_drum'))
self.ui.checkWriteWAV.clicked.connect(
partial(self.updateStateFromUI, only='writeWAV'))
self.ui.spinTimeShift.valueChanged.connect(
partial(self.updateStateFromUI, only='extraTimeShift'))
self.ui.editTrackName.textChanged.connect(self.trackSetName)
self.ui.spinTrackVolume.valueChanged.connect(self.trackSetVolume)
self.ui.checkTrackMute.stateChanged.connect(self.trackSetMute)
self.ui.spinModOn.valueChanged.connect(self.moduleSetModOn)
self.ui.spinModTranspose.valueChanged.connect(self.moduleSetTranspose)
self.ui.btnApplyPattern.clicked.connect(self.moduleSetPattern)
self.ui.btnApplyNote.clicked.connect(self.noteApplyChanges)
self.ui.btnTrackClone.clicked.connect(self.trackClone)
self.ui.btnTrackDelete.clicked.connect(self.trackDelete)
self.ui.btnRandomSynth.clicked.connect(self.trackSetRandomSynth)
self.ui.btnRandomizeSynth.clicked.connect(self.synthRandomize)
self.ui.btnSaveSynth.clicked.connect(self.synthHardClone)
self.ui.btnApplySynthName.clicked.connect(self.synthChangeName)
self.ui.btnReloadSyn.clicked.connect(self.loadSynthsFromSynFile)
self.ui.btnRenderModule.clicked.connect(self.renderModule)
self.ui.btnRenderTrack.clicked.connect(self.renderTrack)
self.ui.btnRenderSong.clicked.connect(self.renderSong)
self.ui.btnStopPlayback.clicked.connect(self.stopPlayback)
# model/view signals
self.ui.trackList.selectionModel().currentChanged.connect(
self.trackLoad)
self.ui.patternCombox.currentIndexChanged.connect(self.patternLoad)
self.ui.moduleList.selectionModel().currentChanged.connect(
self.moduleLoad)
self.ui.synthList.selectionModel().currentChanged.connect(
self.trackSetSynth)
self.ui.noteList.selectionModel().currentChanged.connect(self.noteLoad)
self.ui.drumList.selectionModel().currentChanged.connect(
self.noteSetDrum)
def initModelView(self):
self.trackModel = TrackModel()
self.ui.trackList.setModel(self.trackModel)
self.moduleModel = ModuleModel()
self.ui.moduleList.setModel(self.moduleModel)
self.patternModel = PatternModel()
self.ui.patternCombox.setModel(self.patternModel)
self.noteModel = NoteModel()
self.ui.noteList.setModel(self.noteModel)
self.synthModel = QStringListModel()
self.ui.synthList.setModel(self.synthModel)
self.drumModel = QStringListModel()
self.ui.drumList.setModel(self.drumModel)
self.noteModel.dataChanged.connect(
self.updateModulesWithChangedPattern)
self.noteModel.reloadNoteParameters.connect(self.noteLoad)
def initState(self):
self.state = {
'maysonFile': '',
'autoReimport': False,
'autoRender': False,
'lastRendered': '',
'writeWAV': False,
'selectedTrack': 0,
'selectedModule': 0,
'extraTimeShift': 0,
}
self.info = {}
self.patterns = []
self.synths = []
self.drumkit = []
self.amaysyn = None
self.fileObserver = None
def loadAndImportMayson(self):
name, _ = QFileDialog.getOpenFileName(
self, 'Load MAYSON file', '', 'aMaySyn export *.mayson(*.mayson)')
if name == '':
return
self.state['maysonFile'] = name
self.state['title'], self.state[
'synFile'] = self.getTitleAndSynFromMayson(name)
self.autoSave()
self.importMayson()
def importMayson(self):
maysonData = {}
try:
file = open(self.state['maysonFile'], 'r')
maysonData = json.load(file)
except FileNotFoundError:
print(
f"{self.state['maysonFile']} could not be imported. make sure that it exists, or choose another one."
)
self.loadAndImportMayson()
except json.decoder.JSONDecodeError:
print(
f"{self.state['maysonFile']} is changing right now, pause for 1 sec..."
)
sleep(1)
self.importMayson()
finally:
file.close()
if maysonData == {}:
return
self.info = maysonData['info']
self.info.update({'title': self.state['title']})
if self.amaysyn is not None:
self.amaysyn.updateState(info=self.info)
self.trackModel.setTracks(maysonData['tracks'])
self.patternModel.setPatterns(maysonData['patterns'])
self.synthModel.setStringList(maysonData['synths'])
self.drumModel.setStringList(maysonData['drumkit'])
self.trackModel.layoutChanged.emit()
if self.state['selectedTrack'] >= self.trackModel.rowCount():
self.state['selectedTrack'] = 0
self.selectIndex(self.ui.trackList, self.trackModel,
self.state['selectedTrack'])
if self.state['selectedModule'] >= self.moduleModel.rowCount():
self.state['selectedModule'] = 0
self.selectIndex(self.ui.moduleList, self.moduleModel,
self.state['selectedModule'])
self.noteModel.layoutChanged.emit()
if self.noteModel.rowCount() > 0:
self.selectIndex(self.ui.noteList, self.noteModel, 0)
self.synthModel.layoutChanged.emit()
self.drumModel.layoutChanged.emit()
if self.drumIndex().isValid():
self.selectIndex(self.ui.drumList, self.drumModel,
self.drumIndex().row())
self.applyStateToUI()
def exportChangedMayson(self):
name, _ = QFileDialog.getSaveFileName(
self, 'Export with Changes', self.state['maysonFile'],
'aMaySyn export *.mayson(*.mayson)')
if name == '':
return
data = {
'info': self.info,
'tracks': self.trackModel.tracks,
'patterns': self.patternModel.patterns,
'synths': self.synthModel.stringList(),
'drumkit': self.drumModel.stringList(),
}
file = open(name, 'w')
json.dump(data, file)
file.close()
def updateStateFromUI(self, only=None):
if only is None or only == 'maysonFile':
self.state.update({'maysonFile': self.ui.editFilename.text()})
title, synFile = self.getTitleAndSynFromMayson(
self.state['maysonFile'])
self.state.update({'synFile': synFile})
self.state.update({'title': title})
self.info['title'] = title
if only is None or only == 'BPM':
self.info['BPM'] = self.ui.editBPM.text()
if only is None or only == 'B_offset':
self.info['B_offset'] = self.ui.spinBOffset.value()
if only is None or only == 'B_stop':
self.info['B_stop'] = self.ui.spinBStop.value()
if only is None or only == 'level_syn':
self.info['level_syn'] == self.ui.spinLevelSyn.value()
if only is None or only == 'level_drum':
self.info['level_drum'] == self.ui.spinLevelDrum.value()
if only is None or only == 'writeWAV':
self.state['writeWAV'] = self.ui.checkWriteWAV.isChecked()
if only is None or only == 'extraTimeShift':
self.state['extraTimeShift'] = self.ui.spinTimeShift.value()
if self.amaysyn is not None:
self.amaysyn.updateState(info=self.info, synFile=synFile)
def applyStateToUI(self):
self.ui.editFilename.setText(self.state['maysonFile'])
# TODO: think about - do I want self.state['override']['BPM'] etc.??
self.ui.editBPM.setText(self.info['BPM'])
self.ui.spinBOffset.setValue(self.info['B_offset'])
self.ui.spinBStop.setValue(self.info['B_stop'])
self.ui.spinLevelSyn.setValue(self.info['level_syn'])
self.ui.spinLevelDrum.setValue(self.info['level_drum'])
self.ui.checkAutoReimport.setChecked(self.state['autoReimport'])
self.ui.checkAutoRender.setChecked(self.state['autoRender'])
self.ui.checkWriteWAV.setChecked(self.state['writeWAV'])
self.ui.spinTimeShift.setValue(self.state['extraTimeShift'])
def autoSave(self):
file = open(self.autoSaveFile, 'w')
json.dump(self.state, file)
file.close()
def autoLoad(self):
loadState = {}
try:
file = open(self.autoSaveFile, 'r')
loadState = json.load(file)
file.close()
except FileNotFoundError:
pass
for key in loadState:
self.state[key] = loadState[key]
if 'autoReimport' in self.state:
self.toggleAutoReimport(self.state['autoReimport'])
if 'maysonFile' not in self.state or self.state['maysonFile'] == '':
self.loadAndImportMayson()
else:
self.importMayson()
def toggleAutoRender(self, checked):
self.state['autoRender'] = checked
self.autoSave()
def toggleAutoReimport(self, checked):
self.state['autoReimport'] = checked
self.autoSave()
if self.fileObserver is not None:
self.fileObserver.stop()
self.fileObserver.join()
self.fileObserver = None
if checked:
file = self.state['maysonFile']
eventHandler = FileModifiedHandler(file)
eventHandler.fileChanged.connect(
self.importAndRender if self.state['autoRender'] else self.
importMayson)
self.fileObserver = Observer()
self.fileObserver.schedule(eventHandler,
path=path.dirname(file),
recursive=False)
self.fileObserver.start()
def importAndRender(self):
self.importMayson()
if self.amaysyn is None:
print(
"You want to Reimport&Render, but why is aMaySyn not initialized? do some rendering first!"
)
return
self.renderWhateverWasLast()
#################################### GENERAL HELPERS ###########################################
def selectIndex(self, list, model, index):
list.selectionModel().setCurrentIndex(
model.createIndex(index, 0), QItemSelectionModel.SelectCurrent)
def patternIndexOfName(self, name):
patternNames = [p['name'] for p in self.patternModel.patterns]
if name in patternNames:
return patternNames.index(name)
else:
return None
def getTitleAndSynFromMayson(self, maysonFile):
synFile = '.'.join(maysonFile.split('.')[:-1]) + '.syn'
title = '.'.join(path.basename(maysonFile).split('.')[:-1])
return title, synFile
def placeholder(self):
print("FUNCTION NOT IMPLEMENTED. Sorrriiiiiiieee! (not sorry.)")
#################################### TRACK FUNCTIONALITY #######################################
def track(self):
return self.trackModel.tracks[self.trackIndex().row(
)] if self.trackModel.rowCount() > 0 else None
def trackIndex(self):
return self.ui.trackList.currentIndex()
def trackModelChanged(self):
self.trackModel.dataChanged.emit(self.trackIndex(), self.trackIndex())
def trackLoad(self, currentIndex):
cTrack = self.trackModel.tracks[currentIndex.row()]
self.ui.editTrackName.setText(cTrack['name'])
self.ui.spinTrackVolume.setValue(100 * cTrack['par_norm'])
self.ui.checkTrackMute.setChecked(not cTrack['mute'])
self.moduleModel.setModules(cTrack['modules'])
if len(cTrack['modules']) > 0:
self.selectIndex(self.ui.moduleList, self.moduleModel,
cTrack['current_module'])
self.moduleLoad()
self.selectIndex(self.ui.synthList, self.synthModel,
cTrack['current_synth'])
self.state['selectedTrack'] = currentIndex.row()
def trackClone(self):
self.trackModel.cloneRow(self.trackIndex().row())
def trackDelete(self):
self.trackModel.removeRow(self.trackIndex().row())
def trackSetName(self, name):
self.track()['name'] = name
self.trackModelChanged()
def trackSetVolume(self, value):
self.track()['par_norm'] = round(value * .01, 3)
self.trackModelChanged()
def trackSetMute(self, state):
self.track()['mute'] = (state != Qt.Checked)
self.trackModelChanged()
def trackSetSynth(self, index):
self.track()['current_synth'] = self.synthModel.stringList().index(
self.synthModel.data(index, Qt.DisplayRole))
self.ui.editSynthName.setText(self.synthName())
self.trackModelChanged()
if self.synth()[0] == 'D':
self.noteModel.useDrumkit(self.drumModel.stringList())
else:
self.noteModel.useDrumkit(None)
def trackSetRandomSynth(self):
randomIndex = self.synthModel.createIndex(
randint(0,
len(self.instrumentSynths()) - 1), 0)
self.ui.synthList.setCurrentIndex(randomIndex)
#################################### MODULE FUNCTIONALITY ######################################
def module(self):
return self.moduleModel.modules[self.moduleIndex().row(
)] if self.moduleModel.rowCount() > 0 else None
def moduleIndex(self):
return self.ui.moduleList.currentIndex()
def moduleModelChanged(self):
self.moduleModel.dataChanged.emit(self.moduleIndex(),
self.moduleIndex())
def moduleLoad(self, currentIndex=None):
if currentIndex is None:
cModule = self.module()
else:
cModule = self.moduleModel.modules[currentIndex.row()]
self.state['selectedModule'] = currentIndex.row()
self.ui.patternCombox.setCurrentIndex(
self.patternIndexOfName(cModule['pattern']['name']))
self.ui.spinModOn.setValue(cModule['mod_on'])
self.ui.spinModTranspose.setValue(cModule['transpose'])
def moduleAssignPattern(self, pattern):
self.module()['pattern'] = pattern # deepcopy(pattern)
def moduleSetPattern(self):
self.moduleAssignPattern(self.pattern())
self.moduleModelChanged()
def moduleSetModOn(self, value):
self.module()['mod_on'] = self.ui.spinModOn.value()
self.moduleModelChanged()
def moduleSetTranspose(self, value):
self.module()['transpose'] = self.ui.spinModTranspose.value()
self.moduleModelChanged()
#################################### PATTERN FUNCTIONALITY #####################################
def pattern(self):
return self.patternModel.patterns[
self.patternIndex()] if self.patternModel.rowCount() > 0 else None
def patternIndex(self):
return self.ui.patternCombox.currentIndex()
def patternLoad(self, currentIndex):
cPattern = self.patternModel.patterns[currentIndex]
self.noteModel.setNotes(cPattern['notes'])
def updateModulesWithChangedPattern(self, rowBegin, rowEnd):
self.moduleAssignPattern(self.pattern())
self.moduleModelChanged()
self.trackModel.updateModulesWithChangedPattern(self.pattern())
self.trackModelChanged()
#################################### NOTE FUNCTIONALITY ########################################
def note(self):
return self.noteModel.notes[
self.noteIndex().row()] if self.noteModel.rowCount() > 0 else None
def noteIndex(self):
return self.ui.noteList.currentIndex()
def noteModelChanged(self):
self.noteModel.dataChanged.emit(self.noteIndex(), self.noteIndex())
def noteLoad(self, currentIndex):
self.ui.editNote.setText(
self.noteModel.data(currentIndex, Qt.DisplayRole))
self.ui.editNote.setCursorPosition(0)
def noteApplyChanges(self):
self.noteModel.changeByString(self.noteIndex(),
self.ui.editNote.text())
def noteSetDrum(self, currentIndex):
if self.drum() is not None:
self.noteModel.changeDrumTo(self.noteIndex(), self.drum())
################################ SYNTH / DRUM FUNCTIONALITY ####################################
def synth(self):
return self.synthModel.data(self.ui.synthList.currentIndex(),
Qt.DisplayRole)
def synthName(self):
return self.synth()[2:]
def instrumentSynths(self):
return [
I_synth for I_synth in self.synthModel.stringList()
if I_synth[0] == 'I'
]
def drum(self):
if not self.drumIndex():
print("LOLOLOL DRUM INDEX IS NONE (should never happen)")
if not self.drumIndex().isValid():
print("LOLOLOL DRUM INDEX NOT VALID")
return self.drumModel.data(self.drumIndex(), Qt.DisplayRole)
def drumIndex(self):
return self.ui.drumList.currentIndex()
def synthRandomize(self):
self.amaysyn.aMaySynatize(reshuffle_randoms=True)
def synthHardClone(self):
if self.synth()[0] == 'D':
self.synthHardCloneDrum(self)
return
else:
count = 0
oldID = self.synthName()
synths = self.instrumentSynths()
while True:
formID = oldID + '.' + str(count)
print("TRYING", formID, synths)
if 'I_' + formID not in synths: break
count += 1
try:
formTemplate = next(
form for form in self.amaysyn.last_synatized_forms
if form['id'] == oldID)
formType = formTemplate['type']
formMode = formTemplate['mode']
formBody = ' '.join(key + '=' + formTemplate[key]
for key in formTemplate
if key not in ['type', 'id', 'mode'])
if formMode: formBody += ' mode=' + ','.join(formMode)
except StopIteration:
print(
"Current synth is not compiled yet. Do so and try again.")
return
except:
print("could not CLONE HARD:", formID, formTemplate)
raise
else:
with open(self.state['synFile'], mode='a') as filehandle:
filehandle.write('\n' + formType + 4 * ' ' + formID +
4 * ' ' + formBody)
self.loadSynthsFromSynFile()
def synthHardDrum(self):
print("NOT IMPLEMENTED YET")
return
count = 0
oldID = self.synthName()
synths = self.instrumentSynths()
while True:
formID = oldID + '.' + str(count)
print("TRYING", formID, synths)
if 'I_' + formID not in synths: break
count += 1
try:
formTemplate = next(form
for form in self.amaysyn.last_synatized_forms
if form['id'] == oldID)
formType = formTemplate['type']
formMode = formTemplate['mode']
formBody = ' '.join(key + '=' + formTemplate[key]
for key in formTemplate
if key not in ['type', 'id', 'mode'])
if formMode: formBody += ' mode=' + ','.join(formMode)
except StopIteration:
print("Current synth is not compiled yet. Do so and try again.")
return
except:
print("could not CLONE HARD:", formID, formTemplate)
raise
else:
with open(self.state['synFile'], mode='a') as filehandle:
filehandle.write('\n' + formType + 4 * ' ' + formID + 4 * ' ' +
formBody)
self.loadSynthsFromSynFile()
def synthChangeName(self):
if self.synth()[0] != 'I':
print("Nah. Select an instrument synth (I_blabloo)")
return
newID = self.ui.editSynthName.text()
if newID == '':
return
formID = self.synthName()
tmpFile = self.state['synFile'] + '.tmp'
move(self.state['synFile'], tmpFile)
with open(tmpFile, mode='r') as tmp_handle:
with open(self.state['synFile'], mode='w') as new_handle:
for line in tmp_handle.readlines():
lineparse = line.split()
if len(lineparse) > 2 and lineparse[0] in [
'main', 'maindrum'
] and lineparse[1] == formID:
new_handle.write(
line.replace(' ' + formID + ' ',
' ' + newID + ' '))
else:
new_handle.write(line)
self.loadSynthsFromSynFile()
def loadSynthsFromSynFile(self):
self.amaysyn.aMaySynatize()
self.synthModel.setStringList(self.amaysyn.synths)
self.synthModel.dataChanged.emit(
self.synthModel.createIndex(0, 0),
self.synthModel.createIndex(self.synthModel.rowCount(), 0))
self.drumModel.setStringList(self.amaysyn.drumkit)
self.drumModel.dataChanged.emit(
self.drumModel.createIndex(0, 0),
self.drumModel.createIndex(self.drumModel.rowCount(), 0))
self.trackModel.setSynthList(self.amaysyn.synths)
self.trackModelChanged()
# TODO: function to change drumkit order / assignment?
######################################## SleaZYNTHesizer #######################################
def initAMaySyn(self):
self.amaysyn = aMaySynBuilder(self, self.state['synFile'], self.info)
def initAudio(self):
self.audioformat = QAudioFormat()
self.audioformat.setSampleRate(self.samplerate)
self.audioformat.setChannelCount(2)
self.audioformat.setSampleSize(32)
self.audioformat.setCodec('audio/pcm')
self.audioformat.setByteOrder(QAudioFormat.LittleEndian)
self.audioformat.setSampleType(QAudioFormat.Float)
self.audiooutput = QAudioOutput(self.audioformat)
self.audiooutput.setVolume(1.0)
def stopPlayback(self):
self.audiooutput.stop()
def renderWhateverWasLast(self):
if self.state['lastRendered'] == 'module':
self.renderModule()
elif self.state['lastRendered'] == 'track':
self.renderTrack()
else:
self.renderSong()
def renderModule(self):
print(self.track(), self.module())
self.state['lastRendered'] = 'module'
restoreMute = self.track()['mute']
self.track()['mute'] = False
modInfo = deepcopy(self.info)
modInfo['B_offset'] = self.module()['mod_on']
modInfo['B_stop'] = self.module()['mod_on'] + self.module(
)['pattern']['length']
self.amaysyn.info = modInfo
self.amaysyn.extra_time_shift = self.state['extraTimeShift']
shader = self.amaysyn.build(tracks=[self.track()],
patterns=[self.module()['pattern']])
self.amaysyn.info = self.info
self.track()['mute'] = restoreMute
self.executeShader(shader)
def renderTrack(self):
self.state['lastRendered'] = 'track'
restoreMute = self.track()['mute']
self.track()['mute'] = False
self.amaysyn.extra_time_shift = self.state['extraTimeShift']
shader = self.amaysyn.build(tracks=[self.track()],
patterns=self.patternModel.patterns)
self.track()['mute'] = restoreMute
self.executeShader(shader)
def renderSong(self):
self.state['lastRendered'] = 'song'
self.amaysyn.extra_time_shift = self.state['extraTimeShift']
shader = self.amaysyn.build(tracks=self.trackModel.tracks,
patterns=self.patternModel.patterns)
self.executeShader(shader)
def executeShader(self, shader):
self.ui.codeEditor.clear()
self.ui.codeEditor.insertPlainText(
shader.replace(4 * ' ', '\t').replace(3 * ' ', '\t'))
self.ui.codeEditor.ensureCursorVisible()
sequenceLength = len(
self.amaysyn.sequence) if self.amaysyn.sequence is not None else 0
if not self.amaysyn.useSequenceTexture and sequenceLength > pow(2, 14):
QMessageBox.critical(
self, "I CAN'T",
f"Either switch to using the Sequence Texture (ask QM), or reduce the sequence size by limiting the offset/stop positions or muting tracks.\nCurrent sequence length is:\n{sequenceLength} > {pow(2,14)}"
)
return
self.bytearray = self.amaysyn.executeShader(
shader,
self.samplerate,
self.texsize,
renderWAV=self.state['writeWAV'])
self.audiobuffer = QBuffer(self.bytearray)
self.audiobuffer.open(QIODevice.ReadOnly)
self.audiooutput.stop()
self.audiooutput.start(self.audiobuffer)
###################################### DEBUG STUFF #############################################
def debugOutput(self):
print("TRACKS:", self.trackModel.rowCount())
print("===== TRACK ACCUMULATION =====")
track_accumulate = 0
for t in self.trackModel.tracks:
delta = len(t['modules'])
print(
f"{t['name']:>20} {track_accumulate:>10} {track_accumulate + delta:>10}"
)
track_accumulate += delta
print("END AT", track_accumulate)
print()
print("PATTERNS:", self.patternModel.rowCount())
print("===== PATTERN ACCUMULATION =====")
pattern_accumulate = 0
for p in self.patternModel.patterns:
delta = len(p['notes'])
print(
f"{p['name']:>20} {pattern_accumulate:>10} {pattern_accumulate + delta:>10}"
)
pattern_accumulate += delta
print("END AT", pattern_accumulate)
print()
class SideToneWidget(QWidget):
def __init__(self, parent):
super().__init__(parent)
# Save link to main window
self.main_window = parent
# Get the status bar
self.status_bar = parent.statusBar()
# Slot that will point to a QAudioInput some day
self.input_device = None
# Slot that will point to a QAudioOutput in time
self.otput_device = None
# set up layout, creating:
# self.input_info_list, list of QAudioInfo for inputs
# self.cb_inputs, combox of input names in same order
# self.otput_info_list, list of QAudioInfo for outputs
# self.cb_otputs, combox of output names in same order
# self.volume, volume slider
# self.mute, mute checkbox
self._uic()
# Connect up signals to slots.
# Changes in the comboxes go to in_device and ot_device
self.cb_inputs.currentIndexChanged.connect(self.in_dev_change)
self.cb_otputs.currentIndexChanged.connect(self.ot_dev_change)
# Mute button goes to mute_change
self.mute.stateChanged.connect(self.mute_change)
# Change in volume goes to volume_change
self.volume.valueChanged.connect(self.volume_change)
# Start with the mute switch on. This triggers the above two signals.
self.mute.setChecked(True)
# Slot for any change in volume (or mute). If we have an output device
# then convert level to a real and pass to the output device. If the new
# level is 0, tell the device to stop; if nonzero, tell it to start.
# Note we don't do anything about the input device level, it is always 1.0
def volume_change(self, new_level):
if self.otput_device: # we have an output device
self.otput_device.setVolume(self.volume.value() / 100)
if new_level == 0: # looks like a mute
# tell the output device to stop just in case it
# doesn't know about volume control.
self.otput_device.stop()
else: # non-zero level, if the output is stopped, start it
if self.otput_device.state() == QAudio.StoppedState:
self.otput_device.start()
# Slot for mute switch. Note that any change to the volume slider
# generates a signal to the volume_change slot.
def mute_change(self, onoff):
if onoff:
# Mute has been clicked ON. Remember the current volume.
# Turn the volume to zero.
self.volume_level = self.volume.value()
self.volume.setValue(0)
else:
# Mute has been clicked OFF. If we do not yet have input and
# output devices, get them. Then reset the old volume level.
if self.otput_device is None:
# We are starting up and have no devices. Fake a call to
# the checkbox-change entries thus creating devices.
self.in_dev_change(self.cb_inputs.currentIndex())
self.ot_dev_change(self.cb_inputs.currentIndex())
self.volume.setValue(self.volume_level)
# Slots for changes in the selection of the input- and output-device
# combo boxes. On startup we have neither an input nor an output device.
# We do not know which combox the user will fiddle with first. So either
# has to assume that the other device may not yet exist.
#
# On a change of input choice: if we have an input device, get rid of it.
# Create a new input device. Set its level to 1.0. If we
# have an output, connect the two.
def in_dev_change(self, new_index):
if self.input_device:
if self.otput_device:
self.otput_device.stop()
self.input_device.stop()
self.input_device = None # goodby object
# Get the QAudioDeviceInfo corresponding to this index of the combox.
audio_info = self.input_info_list[new_index]
# Create a new QAudioInput based on that.
preferred_format = audio_info.preferredFormat()
self.input_device = QAudioInput(audio_info, preferred_format)
self.input_device.setVolume(1.0)
self.input_device.setBufferSize(384)
# If we have an output device, redirect it to this input. This is
# done by asking the input device for its QIODevice, and passing that
# to the output device's start() method.
if self.otput_device:
self.input_device.start(self.otput_device.start())
# self.otput_device.start( self.input_device.start() )
# On a change in the selection of output choice: If we have an output
# device, get rid of it. Create a new output device. If we have an input
# device, connect the two. Set the output level from the volume slider.
def ot_dev_change(self, new_index):
if self.otput_device:
if self.input_device:
self.input_device.stop()
self.otput_device.stop()
self.otput_device = None
audio_info = self.otput_info_list[new_index]
preferred_format = audio_info.preferredFormat()
self.otput_device = QAudioOutput(audio_info, preferred_format)
self.otput_device.setVolume(self.volume.value() / 100)
# self.otput_device.setBufferSize( 384 )
if self.input_device:
self.input_device.start(self.otput_device.start())
# self.otput_device.start( self.input_device.start() )
def _uic(self):
"""
set up our layout which consists of:
Big Honkin' Label
[input combobox] [output combobox]
[volume slider] [x] Mute
hooking put the signals to useful slots is the job
of __init__. Here just make the layout.
"""
self.setMinimumWidth(400)
# Create the big honkin' label and logo
icon_pixmap = QPixmap(":/icon.png").scaledToWidth(64)
icon_label = QLabel()
icon_label.setPixmap(icon_pixmap)
text_label = QLabel("Sidetone!")
hb_label = QHBoxLayout()
hb_label.addStretch(1)
hb_label.addWidget(icon_label, 0)
hb_label.addWidget(text_label, 0)
hb_label.addStretch(1)
# Create a list of QAudioInfo objects for inputs
self.input_info_list = QAudioDeviceInfo.availableDevices(QAudio.AudioInput)
if 0 == len(self.input_info_list):
self.input_info_list = [QAudioDeviceInfo.defaultInputDevice()]
# Create a combo box and populate it with names of inputs
self.cb_inputs = QComboBox()
self.cb_inputs.addItems([audio_info.deviceName() for audio_info in self.input_info_list])
# Create a list of QAudioInfo objects for outputs
self.otput_info_list = QAudioDeviceInfo.availableDevices(QAudio.AudioOutput)
if 0 == len(self.otput_info_list):
self.otput_info_list = [QAudioDeviceInfo.defaultOutputDevice()]
self.status_bar.showMessage(
"{} inputs {} otputs".format(len(self.input_info_list), len(self.otput_info_list)), 2000
)
# Create a combo box and populate it with names of outputs
self.cb_otputs = QComboBox()
self.cb_otputs.addItems([audio_info.deviceName() for audio_info in self.otput_info_list])
# Lay those two out aligned to the outside
hb_combos = QHBoxLayout()
hb_combos.addWidget(self.cb_inputs, 1)
hb_combos.addStretch(0)
hb_combos.addWidget(self.cb_otputs, 1)
# Create a volume slider from 0 to 100.
self.volume = QSlider(Qt.Horizontal, self)
self.volume.setMinimum(0)
self.volume.setMaximum(100)
self.volume.setTickInterval(10)
self.volume.setTickPosition(QSlider.TicksBothSides)
# Create a checkbox "Mute"
self.mute = QCheckBox("Mute")
# Put those together in a row squeezed in the center
hb_volume = QHBoxLayout()
hb_volume.addStretch(1)
hb_volume.addWidget(self.volume, 1)
hb_volume.addWidget(self.mute, 0)
hb_volume.addStretch(1)
# Stack all those up as this widget's layout
vlayout = QVBoxLayout()
vlayout.addLayout(hb_label)
vlayout.addLayout(hb_combos)
vlayout.addLayout(hb_volume)
self.setLayout(vlayout)
class Window(QWidget):
def __init__(self, parent=None):
QWidget.__init__(self, parent)
format = QAudioFormat()
format.setChannelCount(1)
format.setSampleRate(22050)
format.setSampleSize(16)
format.setCodec("audio/pcm")
format.setByteOrder(QAudioFormat.LittleEndian)
format.setSampleType(QAudioFormat.SignedInt)
self.output = QAudioOutput(format, self)
self.frequency = 440
self.volume = 0
self.buffer = QBuffer()
self.data = QByteArray()
self.deviceLineEdit = QLineEdit()
self.deviceLineEdit.setReadOnly(True)
self.deviceLineEdit.setText(
QAudioDeviceInfo.defaultOutputDevice().deviceName())
self.pitchSlider = QSlider(Qt.Horizontal)
self.pitchSlider.setMaximum(100)
self.volumeSlider = QSlider(Qt.Horizontal)
self.volumeSlider.setMaximum(32767)
self.volumeSlider.setPageStep(1024)
self.playButton = QPushButton(self.tr("&Play"))
self.pitchSlider.valueChanged.connect(self.changeFrequency)
self.volumeSlider.valueChanged.connect(self.changeVolume)
self.playButton.clicked.connect(self.play)
formLayout = QFormLayout()
formLayout.addRow(self.tr("Device:"), self.deviceLineEdit)
formLayout.addRow(self.tr("P&itch:"), self.pitchSlider)
formLayout.addRow(self.tr("&Volume:"), self.volumeSlider)
buttonLayout = QVBoxLayout()
buttonLayout.addWidget(self.playButton)
buttonLayout.addStretch()
horizontalLayout = QHBoxLayout(self)
horizontalLayout.addLayout(formLayout)
horizontalLayout.addLayout(buttonLayout)
self.play()
self.createData()
def changeFrequency(self, value):
self.frequency = 440 + (value * 2)
self.createData()
def play(self):
if self.output.state() == QAudio.ActiveState:
self.output.stop()
if self.buffer.isOpen():
self.buffer.close()
if self.output.error() == QAudio.UnderrunError:
self.output.reset()
self.buffer.setData(self.data)
self.buffer.open(QIODevice.ReadOnly)
self.buffer.seek(0)
self.output.start(self.buffer)
def changeVolume(self, value):
self.volume = value
self.createData()
def createData(self):
self.data.clear()
for i in range(2 * 22050):
t = i / 22050.0
value = int(self.volume * sin(2 * pi * self.frequency * t))
self.data.append(struct.pack("<h", value))