def __init__(self, format, parent=None):
QIODevice.__init__(self, parent)
self.data = QByteArray()
# Preserve phase across calls
self.phase = 0
self.freq = 440
self.convert_16_bit = float(2**15)
coefs = self.getCoef()
self.white_osc = noise.WhiteNoise()
self.white_buffer = self.white_osc.genBuffer(
Meep.SAMPLES_PER_READ) # gen white buffer
self.filter = sf.FilterChain(coefs)
# Check we can deal with the supplied
# sample format. We're supposed to be
# able to deal with any requested
# sample format. But this is a
# _minimal_ example, right?
if format.isValid() and \
format.sampleSize() == 16 and \
format.byteOrder() == \
QAudioFormat.LittleEndian and \
format.sampleType() == \
QAudioFormat.SignedInt and \
format.channelCount() == 1 :
print("Meep: Format compatible. Good.")
self.format = format
def __init__(self, format, parent=None):
QIODevice.__init__(self, parent)
self.data = QByteArray()
self.format = format
self.voiceList = []
self.pulseP = 0.3
self.q = 100
self.transpose = 36
def __init__(self,format,parent=None):
self.format=format
QIODevice.__init__(self,parent)
self.data=QByteArray()
self.state=0
self.vel=0
self.vol=0
self.q=0
self.d=0
def __init__(self, dev: QIODevice, msg: str = None) -> None:
if msg is None:
msg = dev.errorString()
super().__init__(msg)
self.qt_errno = None # type: typing.Optional[QFileDevice.FileError]
try:
self.qt_errno = dev.error()
except AttributeError:
pass
def write(self,
device: QIODevice,
position: int = 0,
count: int = -1) -> bool:
if count == -1:
count = self.size
status = device.open(QIODevice.WriteOnly)
if status:
for idx in range(position, count, BUFFER_SIZE):
array = self.data(idx, BUFFER_SIZE)
device.write(array)
device.close()
return status
def __init__(self, dev: QIODevice, msg: str = None) -> None:
if msg is None:
msg = dev.errorString()
self.qt_errno = None # type: typing.Optional[QFileDevice.FileError]
if isinstance(dev, QFileDevice):
msg = self._init_filedev(dev, msg)
super().__init__(msg)
def __init__(self, format, parent = None):
QIODevice.__init__(self, parent)
self.data = QByteArray()
# find bandwith for one hertz
self.bdw = 2*np.pi/SAMPLE_RATE
# start off with no note playing (toggled when we detect midi messages)
self.note_on = 0
# add freq offset so we can tune keys
self.octave = 0
# create Filter
b, a = signal.iirdesign([0.2,0.21], [0.1,0.3], 3, 80, False, 'butter')
self.filter = IIR(a,b)
# create ADSR env. generator
self.env = ADSR()
self.env.setAttackRate(.1 * SAMPLE_RATE)
self.env.setDecayRate(.3 * SAMPLE_RATE)
self.env.setReleaseRate(5 * SAMPLE_RATE)
self.env.setSustainLevel(.8)
print("\n~~~~ GENERATOR ~~~~")
# Check we can deal with the supplied
# sample format. We're supposed to be
# able to deal with any requested
# sample format. But this is a
# _minimal_ example, right?
if format.isValid() and \
format.sampleSize() == 16 and \
format.byteOrder() == \
QAudioFormat.LittleEndian and \
format.sampleType() == \
QAudioFormat.SignedInt and \
format.channelCount() == 1 :
print(
"Sample format compatible."
)
self.format = format
def __init__(self, format, parent=None):
QIODevice.__init__(self, parent)
self.data = QByteArray()
# Preserve phase across calls
self.phase = 0
# Check we can deal with the supplied
# sample format. We're supposed to be
# able to deal with any requested
# sample format. But this is a
# _minimal_ example, right?
if format.isValid() and \
format.sampleSize() == 16 and \
format.byteOrder() == \
QAudioFormat.LittleEndian and \
format.sampleType() == \
QAudioFormat.SignedInt and \
format.channelCount() == 1 :
print("Meep: Format compatible. Good.")
self.format = format
def __init__(self, format, activeGen, parent=None):
QIODevice.__init__(self, parent)
self.data = QByteArray()
# hold a reference to the active generator instance
self.generator = activeGen
self.convert_16_bit = float(2**15)
# Check we can deal with the supplied
# sample format. We're supposed to be
# able to deal with any requested
# sample format. But this is a
# _minimal_ example
if format.isValid() and \
format.sampleSize() == 16 and \
format.byteOrder() == \
QAudioFormat.LittleEndian and \
format.sampleType() == \
QAudioFormat.SignedInt and \
format.channelCount() == 1 :
print("Meep: Format compatible. Good.")
self.format = format
