def __init__(self, logger):
self.logger = logger
super(MainWindow, self).__init__()
self.ui = Terzpegelmesser.Ui_MainWindow()
self.ui.setupUi(self)
self.chunk_number = 0
self.buffer_timer_time = 0.
self.cpu_percent = 0.
self.setMinimumSize(1000, 600)
# Initialize the audio data ring buffer
self.audiobuffer = AudioBuffer(self.logger)
# Initialize the audio device
self.audio_device = AudioDevice(self.logger)
# Initialize the blocklength
self.blocklength = 2048
self.ui.BoxFFT.setCurrentIndex(6)
self.logger.push("initial set Blocksize to " + str(self.blocklength))
# Initialize the frequency weighting flag
self.weight = 0
# Initialize the number of samples shown in waveform monitor
self.window = 128
# Initialize the number of periods shown in waveform monitor
self.NumberOfPeriods = 10
# Initialize the flag for lin (0) and log (1) fft plotting
self.plotflag = 1
devices = self.audio_device.get_readable_devices_list()
for device in devices:
self.ui.DeviceList.addItem(device)
current_device = self.audio_device.get_readable_current_device()
self.ui.DeviceList.setCurrentIndex(current_device)
self.display_timer = QTimer()
self.display_timer.setInterval(SMOOTH_DISPLAY_TIMER_PERIOD_MS)
self.connect(self.display_timer, SIGNAL('timeout()'),
self.update_buffer)
self.connect(self.ui.ButtonStartStop, SIGNAL('triggered()'),
self.stream_run)
self.connect(self.ui.DeviceList, SIGNAL('currentIndexChanged(int)'),
self.input_device_changed)
self.connect(self.ui.BoxFFT, SIGNAL('currentIndexChanged(int)'),
self.update_blocklength)
self.ui.action32.triggered.connect(lambda: self.update_blocklength(0))
self.ui.action32.triggered.connect(
lambda: self.ui.BoxFFT.setCurrentIndex(0))
self.ui.action64.triggered.connect(lambda: self.update_blocklength(1))
self.ui.action64.triggered.connect(
lambda: self.ui.BoxFFT.setCurrentIndex(1))
self.ui.action128.triggered.connect(lambda: self.update_blocklength(2))
self.ui.action128.triggered.connect(
lambda: self.ui.BoxFFT.setCurrentIndex(2))
self.ui.action256.triggered.connect(lambda: self.update_blocklength(3))
self.ui.action256.triggered.connect(
lambda: self.ui.BoxFFT.setCurrentIndex(3))
self.ui.action512.triggered.connect(lambda: self.update_blocklength(4))
self.ui.action512.triggered.connect(
lambda: self.ui.BoxFFT.setCurrentIndex(4))
self.ui.action1024.triggered.connect(lambda: self.update_blocklength(
5))
self.ui.action1024.triggered.connect(
lambda: self.ui.BoxFFT.setCurrentIndex(5))
self.ui.action2048.triggered.connect(lambda: self.update_blocklength(
6))
self.ui.action2048.triggered.connect(
lambda: self.ui.BoxFFT.setCurrentIndex(6))
self.ui.action4096.triggered.connect(lambda: self.update_blocklength(
7))
self.ui.action4096.triggered.connect(
lambda: self.ui.BoxFFT.setCurrentIndex(7))
self.ui.action8192.triggered.connect(lambda: self.update_blocklength(
8))
self.ui.action8192.triggered.connect(
lambda: self.ui.BoxFFT.setCurrentIndex(8))
self.ui.actionNone.triggered.connect(lambda: self.update_weight(0))
self.ui.actionNone.triggered.connect(
lambda: self.ui.BoxBew.setCurrentIndex(0))
self.ui.actionA.triggered.connect(lambda: self.update_weight(1))
self.ui.actionA.triggered.connect(
lambda: self.ui.BoxBew.setCurrentIndex(1))
self.ui.actionC.triggered.connect(lambda: self.update_weight(2))
self.ui.actionC.triggered.connect(
lambda: self.ui.BoxBew.setCurrentIndex(2))
self.connect(self.ui.BoxBew, SIGNAL('currentIndexChanged(int)'),
self.update_weight)
self.connect(self.ui.RadioLin, SIGNAL("clicked()"),
self.update_plotflag_lin)
self.connect(self.ui.RadioLog, SIGNAL("clicked()"),
self.update_plotflag_log)
self.ui.actionLogarithmic.triggered.connect(self.update_plotflag_log)
self.ui.actionLogarithmic.triggered.connect(
lambda: self.ui.RadioLog.setChecked(True))
self.ui.actionLinear.triggered.connect(self.update_plotflag_lin)
self.ui.actionLinear.triggered.connect(
lambda: self.ui.RadioLin.setChecked(True))
self.connect(self.ui.push_plus, SIGNAL("clicked()"),
self.update_NumberOfPeriods_minus)
self.ui.actionZoom_Out.triggered.connect(
self.update_NumberOfPeriods_plus)
self.connect(self.ui.push_minus, SIGNAL("clicked()"),
self.update_NumberOfPeriods_plus)
self.ui.actionZoom_In.triggered.connect(
self.update_NumberOfPeriods_minus)
self.gain_plotter = (
gain_plotter.Gain_Plotter(self.ui.PlotGainVerlauf,
self.audiobuffer))
self.spektro_plotter = (
third_octave_plotter.SpektroPlotter(self.ui.PlotTerzpegel,
self.audiobuffer))
self.waveform = waveform.Oszi(self.ui.PlotWellenform,
self.audiobuffer, self.NumberOfPeriods)
self.channelplotter = (
channel_plotter.ChannelPlotter(self.ui.PlotKanalpegel,
self.audiobuffer))
self.specgramplot = (
spectrogram_plotter.Spectrogram_Plot(self.ui.PlotSpektrogramm,
self.audiobuffer))
self.spektro_plotter_2 = (
third_octave_plotter.SpektroPlotter(self.ui.PlotTerzpegel_2,
self.audiobuffer))
self.fft_plot = fft_plotter.FFTPlotter(self.ui.PlotFFT,
self.audiobuffer,
self.blocklength, self.plotflag)
# if the startStop button is clicked, the timer starts and the stream is
# filled with acoustic data
self.ui.ButtonStartStop.clicked.connect(self.stream_run)
self.ui.ButtonStartStop.state = 0
self.display_timer.timeout.connect(self.update_plot)
class MainWindow(QMainWindow):
def __init__(self, logger):
self.logger = logger
super(MainWindow, self).__init__()
self.ui = Terzpegelmesser.Ui_MainWindow()
self.ui.setupUi(self)
self.chunk_number = 0
self.buffer_timer_time = 0.
self.cpu_percent = 0.
self.setMinimumSize(1000, 600)
# Initialize the audio data ring buffer
self.audiobuffer = AudioBuffer(self.logger)
# Initialize the audio device
self.audio_device = AudioDevice(self.logger)
# Initialize the blocklength
self.blocklength = 2048
self.ui.BoxFFT.setCurrentIndex(6)
self.logger.push("initial set Blocksize to " + str(self.blocklength))
# Initialize the frequency weighting flag
self.weight = 0
# Initialize the number of samples shown in waveform monitor
self.window = 128
# Initialize the number of periods shown in waveform monitor
self.NumberOfPeriods = 10
# Initialize the flag for lin (0) and log (1) fft plotting
self.plotflag = 1
devices = self.audio_device.get_readable_devices_list()
for device in devices:
self.ui.DeviceList.addItem(device)
current_device = self.audio_device.get_readable_current_device()
self.ui.DeviceList.setCurrentIndex(current_device)
self.display_timer = QTimer()
self.display_timer.setInterval(SMOOTH_DISPLAY_TIMER_PERIOD_MS)
self.connect(self.display_timer, SIGNAL('timeout()'),
self.update_buffer)
self.connect(self.ui.ButtonStartStop, SIGNAL('triggered()'),
self.stream_run)
self.connect(self.ui.DeviceList, SIGNAL('currentIndexChanged(int)'),
self.input_device_changed)
self.connect(self.ui.BoxFFT, SIGNAL('currentIndexChanged(int)'),
self.update_blocklength)
self.ui.action32.triggered.connect(lambda: self.update_blocklength(0))
self.ui.action32.triggered.connect(
lambda: self.ui.BoxFFT.setCurrentIndex(0))
self.ui.action64.triggered.connect(lambda: self.update_blocklength(1))
self.ui.action64.triggered.connect(
lambda: self.ui.BoxFFT.setCurrentIndex(1))
self.ui.action128.triggered.connect(lambda: self.update_blocklength(2))
self.ui.action128.triggered.connect(
lambda: self.ui.BoxFFT.setCurrentIndex(2))
self.ui.action256.triggered.connect(lambda: self.update_blocklength(3))
self.ui.action256.triggered.connect(
lambda: self.ui.BoxFFT.setCurrentIndex(3))
self.ui.action512.triggered.connect(lambda: self.update_blocklength(4))
self.ui.action512.triggered.connect(
lambda: self.ui.BoxFFT.setCurrentIndex(4))
self.ui.action1024.triggered.connect(lambda: self.update_blocklength(
5))
self.ui.action1024.triggered.connect(
lambda: self.ui.BoxFFT.setCurrentIndex(5))
self.ui.action2048.triggered.connect(lambda: self.update_blocklength(
6))
self.ui.action2048.triggered.connect(
lambda: self.ui.BoxFFT.setCurrentIndex(6))
self.ui.action4096.triggered.connect(lambda: self.update_blocklength(
7))
self.ui.action4096.triggered.connect(
lambda: self.ui.BoxFFT.setCurrentIndex(7))
self.ui.action8192.triggered.connect(lambda: self.update_blocklength(
8))
self.ui.action8192.triggered.connect(
lambda: self.ui.BoxFFT.setCurrentIndex(8))
self.ui.actionNone.triggered.connect(lambda: self.update_weight(0))
self.ui.actionNone.triggered.connect(
lambda: self.ui.BoxBew.setCurrentIndex(0))
self.ui.actionA.triggered.connect(lambda: self.update_weight(1))
self.ui.actionA.triggered.connect(
lambda: self.ui.BoxBew.setCurrentIndex(1))
self.ui.actionC.triggered.connect(lambda: self.update_weight(2))
self.ui.actionC.triggered.connect(
lambda: self.ui.BoxBew.setCurrentIndex(2))
self.connect(self.ui.BoxBew, SIGNAL('currentIndexChanged(int)'),
self.update_weight)
self.connect(self.ui.RadioLin, SIGNAL("clicked()"),
self.update_plotflag_lin)
self.connect(self.ui.RadioLog, SIGNAL("clicked()"),
self.update_plotflag_log)
self.ui.actionLogarithmic.triggered.connect(self.update_plotflag_log)
self.ui.actionLogarithmic.triggered.connect(
lambda: self.ui.RadioLog.setChecked(True))
self.ui.actionLinear.triggered.connect(self.update_plotflag_lin)
self.ui.actionLinear.triggered.connect(
lambda: self.ui.RadioLin.setChecked(True))
self.connect(self.ui.push_plus, SIGNAL("clicked()"),
self.update_NumberOfPeriods_minus)
self.ui.actionZoom_Out.triggered.connect(
self.update_NumberOfPeriods_plus)
self.connect(self.ui.push_minus, SIGNAL("clicked()"),
self.update_NumberOfPeriods_plus)
self.ui.actionZoom_In.triggered.connect(
self.update_NumberOfPeriods_minus)
self.gain_plotter = (
gain_plotter.Gain_Plotter(self.ui.PlotGainVerlauf,
self.audiobuffer))
self.spektro_plotter = (
third_octave_plotter.SpektroPlotter(self.ui.PlotTerzpegel,
self.audiobuffer))
self.waveform = waveform.Oszi(self.ui.PlotWellenform,
self.audiobuffer, self.NumberOfPeriods)
self.channelplotter = (
channel_plotter.ChannelPlotter(self.ui.PlotKanalpegel,
self.audiobuffer))
self.specgramplot = (
spectrogram_plotter.Spectrogram_Plot(self.ui.PlotSpektrogramm,
self.audiobuffer))
self.spektro_plotter_2 = (
third_octave_plotter.SpektroPlotter(self.ui.PlotTerzpegel_2,
self.audiobuffer))
self.fft_plot = fft_plotter.FFTPlotter(self.ui.PlotFFT,
self.audiobuffer,
self.blocklength, self.plotflag)
# if the startStop button is clicked, the timer starts and the stream is
# filled with acoustic data
self.ui.ButtonStartStop.clicked.connect(self.stream_run)
self.ui.ButtonStartStop.state = 0
self.display_timer.timeout.connect(self.update_plot)
def update_plot(self):
isvis_FFT = self.ui.PlotFFT.isVisible()
self.channelplotter.plot()
self.gain_plotter.plot()
self.spektro_plotter.plot(self.weight)
self.spektro_plotter_2.plot(self.weight)
self.waveform.plot(self.NumberOfPeriods)
if isvis_FFT == False:
self.specgramplot.plotspecgram()
if isvis_FFT == True:
self.fft_plot.plot(self.blocklength, self.plotflag)
# opens stream if there is none, else closes it
def stream_run(self):
if self.ui.ButtonStartStop.state == 0:
#openstream()
self.logger.push("Timer start")
self.display_timer.start()
self.ui.ButtonStartStop.setText("Stop")
self.display_timer.start()
print(logger.log)
self.ui.ButtonStartStop.state = 1
else:
#closestream()
self.logger.push("Timer stop")
self.display_timer.stop()
self.ui.ButtonStartStop.setText("Start")
self.display_timer.stop()
self.ui.ButtonStartStop.state = 0
print(logger.log)
def update_buffer(self):
chunks, t, newpoints = (
self.audio_device.update(self.audiobuffer.ringbuffer))
self.audiobuffer.set_newdata(newpoints)
self.chunk_number += chunks
self.buffer_timer_time = (95. * self.buffer_timer_time + 5. * t) / 100.
def update_blocklength(self, newblocklength):
self.blocklength = 32 * (2 ** newblocklength)
self.logger.push("Blocksize changed to " + str(self.blocklength))
print(logger.log)
self.fft_plot.must_plot = True
def update_NumberOfPeriods_plus(self):
self.NumberOfPeriods += 1
self.logger.push("Desired number of periods: " +
str(self.NumberOfPeriods))
print(logger.log)
def update_NumberOfPeriods_minus(self):
self.NumberOfPeriods -= 1
# sets lower limit of self.NumberOfPeriods to 1
if self.NumberOfPeriods < 1:
self.NumberOfPeriods = 1
self.logger.push("Desired number of periods: " +
str(self.NumberOfPeriods))
print(logger.log)
def update_weight(self, weight):
self.weight = weight
if self.weight == 0:
self.logger.push("Using Z Curve (unweighted)")
print(logger.log)
elif self.weight == 1:
self.logger.push("Using A Curve")
print(logger.log)
elif self.weight == 2:
self.logger.push("Using C Curve")
print(logger.log)
else:
print self.weight
def update_plotflag_lin(self):
self.plotflag = 0
self.logger.push("Linear frequency axis selected")
self.fft_plot.must_plot = True
print(logger.log)
def update_plotflag_log(self):
self.plotflag = 1
self.logger.push("Logarithmic frequency axis selected")
self.fft_plot.must_plot = True
print(logger.log)
def input_device_changed(self, index):
success, index = self.audio_device.select_input_device(index)
self.ui.DeviceList.setCurrentIndex(index)
self.fft_plot.must_plot = True
if not success:
# Note: the error message is a child of the settings dialog, so that
# that dialog remains on top when the error message is closed
error_message = QErrorMessage(self.settings_dialog)
error_message.setWindowTitle("Input device error")
error_message.showMessage("Impossible to use the selected input"
" device, reverting to the previous one")
def statistics(self):
if not self.about_dialog.LabelStats.isVisible():
return
label = "Chunk #%d\n"\
"Audio buffer retrieval: %.02f ms\n"\
"Global CPU usage: %d %%\n"\
"Number of overflowed inputs (XRUNs): %d"\
% (self.chunk_number, self.buffer_timer_time, self.cpu_percent,
self.audio_device.xruns)
self.about_dialog.LabelStats.setText(label)
