def __init__(self, parent, logger=PrintLogger()): super().__init__(parent) self.logger = logger self.audiobuffer = None self.setObjectName("Spectrum_Widget") self.gridLayout = QtWidgets.QGridLayout(self) self.gridLayout.setObjectName("gridLayout") self.PlotZoneSpect = HistPlot(self, self.logger) self.PlotZoneSpect.setObjectName("PlotZoneSpect") self.gridLayout.addWidget(self.PlotZoneSpect, 0, 0, 1, 1) self.spec_min = DEFAULT_SPEC_MIN self.spec_max = DEFAULT_SPEC_MAX self.weighting = DEFAULT_WEIGHTING self.response_time = DEFAULT_RESPONSE_TIME self.PlotZoneSpect.setspecrange(self.spec_min, self.spec_max) self.PlotZoneSpect.setweighting(self.weighting) self.filters = octave_filters(DEFAULT_BANDSPEROCTAVE) self.dispbuffers = [0] * DEFAULT_BANDSPEROCTAVE * NOCTAVE # set kernel and parameters for the smoothing filter self.setresponsetime(self.response_time) # initialize the settings dialog self.settings_dialog = OctaveSpectrum_Settings_Dialog(self, self.logger)
def __init__(self, parent=None, logger=PrintLogger()): super().__init__(parent) self.setObjectName("LongLevels_Widget") self.logger = logger self.setObjectName("Scope_Widget") self.gridLayout = QtWidgets.QGridLayout(self) self.gridLayout.setObjectName("gridLayout") self.PlotZoneUp = TimePlot(self, self.logger) self.PlotZoneUp.setObjectName("PlotZoneUp") self.PlotZoneUp.setverticaltitle("Level (dB FS RMS)") self.PlotZoneUp.sethorizontaltitle("Time (min)") self.PlotZoneUp.setTrackerFormatter(lambda x, y: "%.3g min, %.3g" % (x, y)) self.level_min = DEFAULT_LEVEL_MIN self.level_max = DEFAULT_LEVEL_MAX self.PlotZoneUp.setverticalrange(self.level_min, self.level_max) self.gridLayout.addWidget(self.PlotZoneUp, 0, 0, 1, 1) self.logger = logger self.audiobuffer = None # initialize the settings dialog self.settings_dialog = LongLevels_Settings_Dialog(self, self.logger) # initialize the class instance that will do the fft self.proc = audioproc(self.logger) self.level = None # 1e-30 self.level_rms = -200. self.two_channels = False self.i = 0 self.old_index = 0 #self.response_time = 60. # 1 minute self.response_time = 20. # how many times we should decimate to end up with 100 points in the kernel self.Ndec = int(max(0, np.floor((np.log2(self.response_time * SAMPLING_RATE/100.))))) Ngauss = 4 self.b = np.array(gauss(10*Ngauss+1, 2.*Ngauss)) self.a = np.zeros(self.b.shape) self.a[0] = 1. self.zf = np.zeros(max(len(self.b), len(self.a)) - 1) self.subsampled_sampling_rate = SAMPLING_RATE / 2 ** (self.Ndec) self.subsampler = Subsampler(self.Ndec) self.length_seconds = 60.*10 # actually this should be linked to the pixel width of the plot area self.length_samples = self.length_seconds * self.subsampled_sampling_rate # ringbuffer for the subsampled data self.ringbuffer = RingBuffer(self.logger)
def __init__(self, parent, audiobackend, logger=PrintLogger()): super().__init__(parent) self.logger = logger self.setObjectName("Spectrogram_Widget") self.gridLayout = QtWidgets.QGridLayout(self) self.gridLayout.setObjectName("gridLayout") self.PlotZoneImage = ImagePlot(self, self.logger, audiobackend) self.PlotZoneImage.setObjectName("PlotZoneImage") self.gridLayout.addWidget(self.PlotZoneImage, 0, 1, 1, 1) self.audiobuffer = None self.audiobackend = audiobackend # initialize the class instance that will do the fft self.proc = audioproc(self.logger) self.maxfreq = DEFAULT_MAXFREQ self.proc.set_maxfreq(self.maxfreq) self.minfreq = DEFAULT_MINFREQ self.fft_size = 2 ** DEFAULT_FFT_SIZE * 32 self.proc.set_fftsize(self.fft_size) self.spec_min = DEFAULT_SPEC_MIN self.spec_max = DEFAULT_SPEC_MAX self.weighting = DEFAULT_WEIGHTING self.update_weighting() self.freq = self.proc.get_freq_scale() self.timerange_s = DEFAULT_TIMERANGE self.canvas_width = 100. self.old_index = 0 self.overlap = 3. / 4. self.overlap_frac = Fraction(3, 4) self.dT_s = self.fft_size * (1. - self.overlap) / float(SAMPLING_RATE) self.PlotZoneImage.setlog10freqscale() # DEFAULT_FREQ_SCALE = 1 #log10 self.PlotZoneImage.setfreqrange(self.minfreq, self.maxfreq) self.PlotZoneImage.setspecrange(self.spec_min, self.spec_max) self.PlotZoneImage.setweighting(self.weighting) self.PlotZoneImage.settimerange(self.timerange_s, self.dT_s) self.update_jitter() sfft_rate_frac = Fraction(SAMPLING_RATE, self.fft_size) / (Fraction(1) - self.overlap_frac) / 1000 self.PlotZoneImage.set_sfft_rate(sfft_rate_frac) # initialize the settings dialog self.settings_dialog = Spectrogram_Settings_Dialog(self, self.logger) self.audiobackend.underflow.connect(self.PlotZoneImage.plotImage.canvasscaledspectrogram.syncOffsets) self.last_data_time = 0. self.mustRestart = False
def __init__(self, parent, sharedGLWidget, logger=PrintLogger()): super().__init__(parent) self.logger = logger self.audiobuffer = None self.setObjectName("Spectrum_Widget") self.gridLayout = QtWidgets.QGridLayout(self) self.gridLayout.setObjectName("gridLayout") self.PlotZoneSpect = SpectrumPlotWidget(self, sharedGLWidget, self.logger) self.PlotZoneSpect.setObjectName("PlotZoneSpect") self.gridLayout.addWidget(self.PlotZoneSpect, 0, 0, 1, 1) # initialize the class instance that will do the fft self.proc = audioproc(self.logger) self.maxfreq = DEFAULT_MAXFREQ self.proc.set_maxfreq(self.maxfreq) self.minfreq = DEFAULT_MINFREQ self.fft_size = 2**DEFAULT_FFT_SIZE * 32 self.proc.set_fftsize(self.fft_size) self.spec_min = DEFAULT_SPEC_MIN self.spec_max = DEFAULT_SPEC_MAX self.weighting = DEFAULT_WEIGHTING self.dual_channels = False self.response_time = DEFAULT_RESPONSE_TIME self.update_weighting() self.freq = self.proc.get_freq_scale() self.old_index = 0 self.overlap = 3. / 4. self.update_display_buffers() # set kernel and parameters for the smoothing filter self.setresponsetime(self.response_time) self.PlotZoneSpect.setlogfreqscale() #DEFAULT_FREQ_SCALE = 1 #log10 self.PlotZoneSpect.setfreqrange(self.minfreq, self.maxfreq) self.PlotZoneSpect.setspecrange(self.spec_min, self.spec_max) self.PlotZoneSpect.setweighting(self.weighting) self.PlotZoneSpect.set_peaks_enabled(True) self.PlotZoneSpect.set_baseline_displayUnits(0.) self.PlotZoneSpect.setShowFreqLabel(DEFAULT_SHOW_FREQ_LABELS) # initialize the settings dialog self.settings_dialog = Spectrum_Settings_Dialog(self, self.logger)
def __init__(self, parent, sharedGLWidget, logger=PrintLogger()): super().__init__(parent) self.audiobuffer = None self.logger = logger self.setObjectName("Scope_Widget") self.gridLayout = QtWidgets.QGridLayout(self) self.gridLayout.setObjectName("gridLayout") self.PlotZoneUp = TimePlot(self, sharedGLWidget, self.logger) self.PlotZoneUp.setObjectName("PlotZoneUp") self.gridLayout.addWidget(self.PlotZoneUp, 0, 0, 1, 1) self.settings_dialog = Scope_Settings_Dialog(self, self.logger) self.timerange = DEFAULT_TIMERANGE
def __init__(self, parent=None, logger=PrintLogger()): QtGui.QWidget.__init__(self, parent) self.audiobuffer = None self.logger = logger self.setObjectName("Scope_Widget") self.gridLayout = QtGui.QGridLayout(self) self.gridLayout.setObjectName("gridLayout") self.PlotZoneUp = TimePlot(self, self.logger) self.PlotZoneUp.setObjectName("PlotZoneUp") self.gridLayout.addWidget(self.PlotZoneUp, 0, 0, 1, 1) self.setStyleSheet(STYLESHEET) self.settings_dialog = Scope_Settings_Dialog(self, self.logger) self.timerange = DEFAULT_TIMERANGE
def __init__(self, parent, logger=PrintLogger()): QtGui.QWidget.__init__(self, parent) self.logger = logger self.audiobuffer = None self.setObjectName("Spectrum_Widget") self.gridLayout = QtGui.QGridLayout(self) self.gridLayout.setObjectName("gridLayout") self.PlotZoneSpect = HistPlot(self, self.logger) self.PlotZoneSpect.setObjectName("PlotZoneSpect") self.gridLayout.addWidget(self.PlotZoneSpect, 0, 0, 1, 1) self.setStyleSheet(STYLESHEET) self.spec_min = DEFAULT_SPEC_MIN self.spec_max = DEFAULT_SPEC_MAX self.weighting = DEFAULT_WEIGHTING self.response_time = DEFAULT_RESPONSE_TIME self.PlotZoneSpect.setspecrange(self.spec_min, self.spec_max) self.PlotZoneSpect.setweighting(self.weighting) self.filters = octave_filters(DEFAULT_BANDSPEROCTAVE) #self.bankbuffers = [RingBuffer() for band in range(0, DEFAULT_BANDSPEROCTAVE*NOCTAVE)] self.dispbuffers = [0] * DEFAULT_BANDSPEROCTAVE * NOCTAVE # an exponential smoothing filter is a simple IIR filter # s_i = alpha*x_i + (1-alpha)*s_{i-1} #we compute alpha so that the N most recent samples represent 100*w percent of the output w = 0.65 decs = self.filters.get_decs() ns = [self.response_time * SAMPLING_RATE / dec for dec in decs] Ns = [2 * 4096 / dec for dec in decs] self.alphas = [1. - (1. - w)**(1. / (n + 1)) for n in ns] #print ns, Ns self.kernels = self.compute_kernels(self.alphas, Ns) # initialize the settings dialog self.settings_dialog = OctaveSpectrum_Settings_Dialog( self, self.logger)
def __init__(self, parent, logger=PrintLogger()): QtGui.QWidget.__init__(self, parent) self.logger = logger self.audiobuffer = None self.setObjectName("Spectrum_Widget") self.gridLayout = QtGui.QGridLayout(self) self.gridLayout.setObjectName("gridLayout") #self.PlotZoneSpect = SpectPlot(self, self.logger) self.PlotZoneSpect = GLPlotWidget(self, self.logger) self.PlotZoneSpect.setObjectName("PlotZoneSpect") self.gridLayout.addWidget(self.PlotZoneSpect, 0, 0, 1, 1) self.setStyleSheet(STYLESHEET) # initialize the class instance that will do the fft self.proc = audioproc(self.logger) self.maxfreq = DEFAULT_MAXFREQ self.proc.set_maxfreq(self.maxfreq) self.minfreq = DEFAULT_MINFREQ self.fft_size = 2**DEFAULT_FFT_SIZE * 32 self.proc.set_fftsize(self.fft_size) self.spec_min = DEFAULT_SPEC_MIN self.spec_max = DEFAULT_SPEC_MAX self.weighting = DEFAULT_WEIGHTING self.dual_channels = False self.PlotZoneSpect.setlogfreqscale() #DEFAULT_FREQ_SCALE = 1 #log10 self.PlotZoneSpect.setfreqrange(self.minfreq, self.maxfreq) self.PlotZoneSpect.setspecrange(self.spec_min, self.spec_max) self.PlotZoneSpect.setweighting(self.weighting) self.PlotZoneSpect.set_peaks_enabled(True) self.PlotZoneSpect.set_baseline_displayUnits(0.) self.PlotZoneSpect.setShowFreqLabel(DEFAULT_SHOW_FREQ_LABELS) # initialize the settings dialog self.settings_dialog = Spectrum_Settings_Dialog(self, self.logger)
def __init__(self, parent=None, logger=PrintLogger()): super().__init__(parent) self.setObjectName("Levels_Widget") self.gridLayout = QtWidgets.QGridLayout(self) self.gridLayout.setObjectName("gridLayout") font = QtGui.QFont() font.setPointSize(14) font.setWeight(75) font.setBold(True) self.label_peak = QtWidgets.QLabel(self) self.label_peak.setFont(font) # QtCore.Qt.AlignBottom|QtCore.Qt.AlignLeading|QtCore.Qt.AlignLeft self.label_peak.setAlignment(QtCore.Qt.AlignBottom | QtCore.Qt.AlignRight) self.label_peak.setObjectName("label_peak") self.label_peak_legend = QtWidgets.QLabel(self) self.label_peak_legend.setAlignment(QtCore.Qt.AlignTop | QtCore.Qt.AlignRight) self.label_peak_legend.setObjectName("label_peak_legend") self.label_rms = QtWidgets.QLabel(self) self.label_rms.setFont(font) self.label_rms.setAlignment(QtCore.Qt.AlignBottom | QtCore.Qt.AlignRight) self.label_rms.setObjectName("label_rms") self.label_rms_legend = QtWidgets.QLabel(self) self.label_rms_legend.setAlignment(QtCore.Qt.AlignTop | QtCore.Qt.AlignRight) self.label_rms_legend.setObjectName("label_rms_legend") self.meter = qsynthMeter(self) self.meter.setStyleSheet(STYLESHEET) self.meter.setObjectName("meter") self.gridLayout.addWidget(self.label_peak, 0, 0, 1, 1) self.gridLayout.addWidget(self.label_peak_legend, 1, 0, 1, 1) self.gridLayout.addWidget(self.label_rms, 2, 0, 1, 1) self.gridLayout.addWidget(self.label_rms_legend, 3, 0, 1, 1) self.gridLayout.addWidget(self.meter, 0, 1, 4, 1) self.label_rms.setText("-100.0") self.label_peak.setText("-100.0") self.label_rms_legend.setText("dB FS\n RMS") self.label_peak_legend.setText("dB FS\n Peak") self.label_rms.setTextFormat(QtCore.Qt.PlainText) self.label_peak.setTextFormat(QtCore.Qt.PlainText) # self.label_rms.setSizePolicy(QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Minimum, QtWidgets.QSizePolicy.Expanding)) # self.label_rms_legend.setSizePolicy(QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Minimum, QtWidgets.QSizePolicy.Expanding)) # self.label_peak.setSizePolicy(QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Minimum, QtWidgets.QSizePolicy.Expanding)) # self.label_peak_legend.setSizePolicy(QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Minimum, QtWidgets.QSizePolicy.Expanding)) self.logger = logger self.audiobuffer = None # initialize the settings dialog self.settings_dialog = Levels_Settings_Dialog(self, self.logger) # initialize the class instance that will do the fft self.proc = audioproc(self.logger) # time = SMOOTH_DISPLAY_TIMER_PERIOD_MS/1000. #DISPLAY # time = 0.025 #IMPULSE setting for a sound level meter # time = 0.125 #FAST setting for a sound level meter # time = 1. #SLOW setting for a sound level meter self.response_time = 0.300 # 300ms is a common value for VU meters # an exponential smoothing filter is a simple IIR filter # s_i = alpha*x_i + (1-alpha)*s_{i-1} # we compute alpha so that the n most recent samples represent 100*w percent of the output w = 0.65 n = self.response_time * SAMPLING_RATE N = 5*n self.alpha = 1. - (1. - w) ** (1. / (n + 1)) self.kernel = (1. - self.alpha) ** (np.arange(0, N)[::-1]) # first channel self.level_rms = -30. self.level_max = -30. self.old_rms = 1e-30 self.old_max = 1e-30 # second channel self.level_rms_2 = -30. self.level_max_2 = -30. self.old_rms_2 = 1e-30 self.old_max_2 = 1e-30 response_time_peaks = 0.025 # 25ms for instantaneous peaks n2 = response_time_peaks / (SMOOTH_DISPLAY_TIMER_PERIOD_MS / 1000.) self.alpha2 = 1. - (1. - w) ** (1. / (n2 + 1)) self.two_channels = False self.i = 0
def __init__(self, parent, audiobackend, logger=PrintLogger()): QtGui.QWidget.__init__(self, parent) self.logger = logger self.audiobuffer = None self.setObjectName("Generator_Widget") self.gridLayout = QtGui.QGridLayout(self) self.gridLayout.setObjectName("gridLayout") self.comboBox_generator_kind = QtGui.QComboBox(self) self.comboBox_generator_kind.setObjectName("comboBox_generator_kind") self.comboBox_generator_kind.addItem("Sine") self.comboBox_generator_kind.addItem("White noise") self.comboBox_generator_kind.addItem("Pink noise") self.comboBox_generator_kind.addItem("Sweep") self.comboBox_generator_kind.addItem("Burst") self.comboBox_generator_kind.setCurrentIndex( DEFAULT_GENERATOR_KIND_INDEX) sinePageWidget = QtGui.QWidget(self) whitePageWidget = QtGui.QWidget(self) pinkPageWidget = QtGui.QWidget(self) sweepPageWidget = QtGui.QWidget(self) burstPageWidget = QtGui.QWidget(self) self.stackedLayout = QtGui.QStackedLayout() self.stackedLayout.addWidget(sinePageWidget) self.stackedLayout.addWidget(whitePageWidget) self.stackedLayout.addWidget(pinkPageWidget) self.stackedLayout.addWidget(sweepPageWidget) self.stackedLayout.addWidget(burstPageWidget) self.spinBox_sine_frequency = QtGui.QSpinBox(sinePageWidget) self.spinBox_sine_frequency.setKeyboardTracking(False) self.spinBox_sine_frequency.setMinimum(20) self.spinBox_sine_frequency.setMaximum(22000) self.spinBox_sine_frequency.setProperty("value", DEFAULT_SINE_FREQUENCY) self.spinBox_sine_frequency.setObjectName("spinBox_sine_frequency") self.spinBox_sine_frequency.setSuffix(" Hz") self.sineLayout = QtGui.QFormLayout(sinePageWidget) self.sineLayout.addRow("Frequency:", self.spinBox_sine_frequency) self.spinBox_sweep_startfrequency = QtGui.QSpinBox(sweepPageWidget) self.spinBox_sweep_startfrequency.setKeyboardTracking(False) self.spinBox_sweep_startfrequency.setMinimum(20) self.spinBox_sweep_startfrequency.setMaximum(22000) self.spinBox_sweep_startfrequency.setProperty( "value", DEFAULT_SWEEP_STARTFREQUENCY) self.spinBox_sweep_startfrequency.setObjectName( "spinBox_sweep_startfrequency") self.spinBox_sweep_startfrequency.setSuffix(" Hz") self.spinBox_sweep_stopfrequency = QtGui.QSpinBox(sweepPageWidget) self.spinBox_sweep_stopfrequency.setKeyboardTracking(False) self.spinBox_sweep_stopfrequency.setMinimum(20) self.spinBox_sweep_stopfrequency.setMaximum(22000) self.spinBox_sweep_stopfrequency.setProperty( "value", DEFAULT_SWEEP_STOPFREQUENCY) self.spinBox_sweep_stopfrequency.setObjectName( "spinBox_sweep_stopfrequency") self.spinBox_sweep_stopfrequency.setSuffix(" Hz") self.spinBox_sweep_period = QtGui.QDoubleSpinBox(sweepPageWidget) self.spinBox_sweep_period.setKeyboardTracking(False) self.spinBox_sweep_period.setDecimals(2) self.spinBox_sweep_period.setSingleStep(1) self.spinBox_sweep_period.setMinimum(0.01) self.spinBox_sweep_period.setMaximum(60) self.spinBox_sweep_period.setProperty("value", DEFAULT_SWEEP_PERIOD_S) self.spinBox_sweep_period.setObjectName("spinBox_sweep_period") self.spinBox_sweep_period.setSuffix(" s") self.sweepLayout = QtGui.QFormLayout(sweepPageWidget) self.sweepLayout.addRow("Start frequency:", self.spinBox_sweep_startfrequency) self.sweepLayout.addRow("Stop frequency:", self.spinBox_sweep_stopfrequency) self.sweepLayout.addRow("Period:", self.spinBox_sweep_period) self.spinBox_burst_period = QtGui.QDoubleSpinBox(burstPageWidget) self.spinBox_burst_period.setKeyboardTracking(False) self.spinBox_burst_period.setDecimals(2) self.spinBox_burst_period.setSingleStep(1) self.spinBox_burst_period.setMinimum(0.01) self.spinBox_burst_period.setMaximum(60) self.spinBox_burst_period.setProperty("value", DEFAULT_BURST_PERIOD_S) self.spinBox_burst_period.setObjectName("spinBox_burst_period") self.spinBox_burst_period.setSuffix(" s") self.burstLayout = QtGui.QFormLayout(burstPageWidget) self.burstLayout.addRow("Period:", self.spinBox_burst_period) self.t = 0. self.t_start = 0. self.t_stop = RAMP_LENGTH self.state = stopped self.audiobackend = audiobackend self.p = pyaudio.PyAudio() self.device = None self.stream = None # we will try to open all the input devices until one # works, starting by the default input device for device in self.audiobackend.output_devices: self.logger.push("Opening the stream") self.stream = self.open_output_stream(device) self.device = device self.logger.push("Trying to write to output device %d" % device) if self.test_output_stream(self.stream): self.logger.push("Success") break else: self.logger.push("Fail") #stream.close() #self.p.terminate() self.startStopButton = QtGui.QPushButton(self) startStopIcon = QtGui.QIcon() startStopIcon.addPixmap(QtGui.QPixmap(":/images-src/start.svg"), QtGui.QIcon.Normal, QtGui.QIcon.Off) startStopIcon.addPixmap(QtGui.QPixmap(":/images-src/stop.svg"), QtGui.QIcon.Normal, QtGui.QIcon.On) startStopIcon.addPixmap(QtGui.QPixmap(":/images-src/stop.svg"), QtGui.QIcon.Active, QtGui.QIcon.On) startStopIcon.addPixmap(QtGui.QPixmap(":/images-src/stop.svg"), QtGui.QIcon.Selected, QtGui.QIcon.On) startStopIcon.addPixmap(QtGui.QPixmap(":/images-src/stop.svg"), QtGui.QIcon.Disabled, QtGui.QIcon.On) self.startStopButton.setIcon(startStopIcon) self.startStopButton.setObjectName("generatorStartStop") self.startStopButton.setText("Start") self.startStopButton.setToolTip("Start/Stop generator") self.startStopButton.setCheckable(True) self.startStopButton.setChecked(False) self.gridLayout.addWidget(self.startStopButton, 0, 0, 1, 1) self.gridLayout.addWidget(self.comboBox_generator_kind, 1, 0, 1, 1) self.gridLayout.addLayout(self.stackedLayout, 2, 0, 1, 1) self.connect(self.comboBox_generator_kind, QtCore.SIGNAL('activated(int)'), self.stackedLayout.setCurrentIndex) self.connect(self.startStopButton, QtCore.SIGNAL('toggled(bool)'), self.startStopButton_toggle) #self.setStyleSheet(STYLESHEET) #self.response_time = DEFAULT_RESPONSE_TIME # initialize the settings dialog self.settings_dialog = Generator_Settings_Dialog(self, self.logger) devices = self.audiobackend.get_readable_output_devices_list() for device in devices: self.settings_dialog.comboBox_outputDevice.addItem(device) if self.device <> None: self.settings_dialog.comboBox_outputDevice.setCurrentIndex( self.audiobackend.output_devices.index(self.device)) self.connect(self.settings_dialog.comboBox_outputDevice, QtCore.SIGNAL('currentIndexChanged(int)'), self.device_changed) self.sweepGenerator = SweepGenerator() self.connect(self.spinBox_sweep_startfrequency, QtCore.SIGNAL('valueChanged(int)'), self.sweepGenerator.setf1) self.connect(self.spinBox_sweep_stopfrequency, QtCore.SIGNAL('valueChanged(int)'), self.sweepGenerator.setf2) self.connect(self.spinBox_sweep_period, QtCore.SIGNAL('valueChanged(double)'), self.sweepGenerator.setT)
def __init__(self, parent=None, logger=PrintLogger()): super().__init__(parent) self.audiobuffer = None self.logger = logger self.previous_delay_message = "" self.previous_correlation_message = "" self.previous_polarity_message = "" self.previous_channel_info_message = "" self.setObjectName("Delay_Estimator_Widget") self.layout = QtWidgets.QFormLayout(self) self.layout.setObjectName("layout") font = QtGui.QFont() font.setPointSize(14) font.setWeight(75) font.setBold(True) self.delay_label = QtWidgets.QLabel(self) self.delay_label.setFont(font) self.delay_label.setObjectName("delay_label") self.delay_text_label = QtWidgets.QLabel(self) self.delay_text_label.setObjectName("delay_text_label") self.delay_text_label.setText("Delay:") self.correlation_label = QtWidgets.QLabel(self) self.correlation_label.setObjectName("Correlation_label") self.correlation_text_label = QtWidgets.QLabel(self) self.correlation_text_label.setObjectName("correlation_text_label") self.correlation_text_label.setText("Confidence:") self.polarity_label = QtWidgets.QLabel(self) self.polarity_label.setFont(font) self.polarity_label.setObjectName("polarity_label") self.polarity_text_label = QtWidgets.QLabel(self) self.polarity_text_label.setObjectName("polarity_text_label") self.polarity_text_label.setText("Polarity:") self.channel_info_label = QtWidgets.QLabel(self) self.channel_info_label.setObjectName("channel_info_label") self.layout.addRow(self.delay_text_label, self.delay_label) self.layout.addRow(self.correlation_text_label, self.correlation_label) self.layout.addRow(self.polarity_text_label, self.polarity_label) self.layout.addRow(None, self.channel_info_label) self.settings_dialog = Delay_Estimator_Settings_Dialog( self, self.logger) # We will decimate several times # no decimation => 1/fs = 23 µs resolution # 1 ms resolution => fs = 1000 Hz is enough => can divide the sampling rate by 44 ! # if I decimate 2 times (2**2 = 4 => 0.092 ms (3 cm) resolution)! # if I decimate 3 times (2**3 = 8 => 0.184 ms (6 cm) resolution)! # if I decimate 4 times (2**4 = 16 => 0.368 ms (12 cm) resolution)! # if I decimate 5 times (2**5 = 32 => 0.7 ms (24 cm) resolution)! # (actually, I could fit a gaussian on the cross-correlation peak to get # higher resolution even at low sample rates) self.Ndec = 2 self.subsampled_sampling_rate = SAMPLING_RATE / 2**(self.Ndec) [self.bdec, self.adec] = generated_filters.PARAMS['dec'] self.bdec = numpy.array(self.bdec) self.adec = numpy.array(self.adec) self.zfs0 = subsampler_filtic(self.Ndec, self.bdec, self.adec) self.zfs1 = subsampler_filtic(self.Ndec, self.bdec, self.adec) # ringbuffers for the subsampled data self.ringbuffer0 = RingBuffer(self.logger) self.ringbuffer1 = RingBuffer(self.logger) self.delayrange_s = DEFAULT_DELAYRANGE # confidence range self.old_Xcorr = None self.old_index = 0 self.two_channels = False self.delay_ms = 0. self.distance_m = 0. self.correlation = 0. self.Xcorr_extremum = 0.
def __init__(self, parent, audiobackend, logger=PrintLogger()): super().__init__(parent) self.logger = logger self.audiobuffer = None self.setObjectName("Generator_Widget") self.grid_layout = QtWidgets.QGridLayout(self) self.grid_layout.setObjectName("grid_layout") self.generators = [] self.generators.append(SineGenerator(self, logger)) self.generators.append(WhiteGenerator(self, logger)) self.generators.append(PinkGenerator(self, logger)) self.generators.append(SweepGenerator(self, logger)) self.generators.append(BurstGenerator(self, logger)) self.combobox_generator_kind = QtWidgets.QComboBox(self) self.combobox_generator_kind.setObjectName("combobox_generator_kind") self.stacked_settings_layout = QtWidgets.QStackedLayout() for generator in self.generators: self.combobox_generator_kind.addItem(generator.name) self.stacked_settings_layout.addWidget(generator.settingsWidget()) self.combobox_generator_kind.setCurrentIndex(DEFAULT_GENERATOR_KIND_INDEX) self.t = 0. self.t_start = 0. self.t_stop = RAMP_LENGTH self.state = STOPPED self.audiobackend = audiobackend self.stream_stop_ramp_finished.connect(self.stop_stream_after_ramp) self.device = None self.stream = None # we will try to open all the output devices until one # works, starting by the default input device for device in self.audiobackend.output_devices: self.logger.push("Opening the stream") try: self.stream = self.audiobackend.open_output_stream(device, self.audio_callback) self.stream.start_stream() self.stream.stop_stream() self.device = device self.logger.push("Success") break except: self.logger.push("Fail") self.start_stop_button = QtWidgets.QPushButton(self) startStopIcon = QtGui.QIcon() startStopIcon.addPixmap(QtGui.QPixmap(":/images-src/start.svg"), QtGui.QIcon.Normal, QtGui.QIcon.Off) startStopIcon.addPixmap(QtGui.QPixmap(":/images-src/stop.svg"), QtGui.QIcon.Normal, QtGui.QIcon.On) startStopIcon.addPixmap(QtGui.QPixmap(":/images-src/stop.svg"), QtGui.QIcon.Active, QtGui.QIcon.On) startStopIcon.addPixmap(QtGui.QPixmap(":/images-src/stop.svg"), QtGui.QIcon.Selected, QtGui.QIcon.On) startStopIcon.addPixmap(QtGui.QPixmap(":/images-src/stop.svg"), QtGui.QIcon.Disabled, QtGui.QIcon.On) self.start_stop_button.setIcon(startStopIcon) self.start_stop_button.setObjectName("generatorStartStop") self.start_stop_button.setText("Start") self.start_stop_button.setToolTip("Start/Stop generator") self.start_stop_button.setCheckable(True) self.start_stop_button.setChecked(False) self.grid_layout.addWidget(self.start_stop_button, 0, 0, 1, 1) self.grid_layout.addWidget(self.combobox_generator_kind, 1, 0, 1, 1) self.grid_layout.addLayout(self.stacked_settings_layout, 2, 0, 1, 1) self.combobox_generator_kind.activated.connect(self.stacked_settings_layout.setCurrentIndex) self.start_stop_button.toggled.connect(self.start_stop_button_toggle) # initialize the settings dialog devices = self.audiobackend.get_readable_output_devices_list() if self.device is not None: device_index = self.audiobackend.output_devices.index(self.device) else: device_index = None self.settings_dialog = Generator_Settings_Dialog(self, self.logger, devices, device_index) self.settings_dialog.combobox_output_device.currentIndexChanged.connect(self.device_changed)
def __init__(self, parent=None, logger=PrintLogger()): super().__init__(parent) self.setObjectName("LongLevels_Widget") self.logger = logger self.setObjectName("Scope_Widget") self.gridLayout = QtWidgets.QGridLayout(self) self.gridLayout.setObjectName("gridLayout") self.PlotZoneUp = TimePlot(self, self.logger) self.PlotZoneUp.setObjectName("PlotZoneUp") self.PlotZoneUp.setverticaltitle("Level (dB FS RMS)") self.PlotZoneUp.sethorizontaltitle("Time (min)") self.PlotZoneUp.setTrackerFormatter(lambda x, y: "%.3g min, %.3g" % (x, y)) self.level_min = DEFAULT_LEVEL_MIN self.level_max = DEFAULT_LEVEL_MAX self.PlotZoneUp.setverticalrange(self.level_min, self.level_max) self.gridLayout.addWidget(self.PlotZoneUp, 0, 0, 1, 1) self.logger = logger self.audiobuffer = None # initialize the settings dialog self.settings_dialog = LongLevels_Settings_Dialog(self, self.logger) # initialize the class instance that will do the fft self.proc = audioproc(self.logger) #self.response_time = 60. # 1 minute self.response_time = 1. # an exponential smoothing filter is a simple IIR filter # s_i = alpha*x_i + (1-alpha)*s_{i-1} # we compute alpha so that the n most recent samples represent 100*w percent of the output w = 0.65 # how many times we should decimate to end up with 100 points in the kernel self.Ndec = int( max(0, np.floor( (np.log2(self.response_time * SAMPLING_RATE / 100.))))) n = self.response_time * SAMPLING_RATE / 2**self.Ndec N = int(5 * n) self.alpha = 1. - (1. - w)**(1. / (n + 1)) self.kernel = (1. - self.alpha)**(np.arange(0, N)[::-1]) self.level = None # 1e-30 self.level_rms = -200. self.two_channels = False self.i = 0 self.subsampled_sampling_rate = SAMPLING_RATE / 2**(self.Ndec) self.subsampler = Subsampler(self.Ndec) self.old_index = 0 self.length_seconds = 60. * 10 # actually this should be linked to the pixel width of the plot area self.length_samples = self.length_seconds * self.subsampled_sampling_rate # ringbuffer for the subsampled data self.ringbuffer = RingBuffer(self.logger)