class LiveFFTWidget(QWidget):
def __init__(self):
super().__init__()
self.initUI()
self.initData()
self.connectSlots()
self.initMplWidget()
def initUI(self):
hbox_gain = QHBoxLayout()
autoGain = QLabel('Auto gain for frequency spectrum')
autoGainCheckBox = QCheckBox(checked=True)
hbox_gain.addWidget(autoGain)
hbox_gain.addWidget(autoGainCheckBox)
self.autoGainCheckBox = autoGainCheckBox
hbox_fixedGain = QHBoxLayout()
fixedGain = QLabel('Manual gain level for frequency spectrum')
fixedGainSlider = QSlider(QtCore.Qt.Horizontal)
hbox_fixedGain.addWidget(fixedGain)
hbox_fixedGain.addWidget(fixedGainSlider)
self.fixedGainSlider = fixedGainSlider
self.vbox = QVBoxLayout()
self.vbox.addLaout(hbox_gain)
self.vbox.addLayout(hbox_fixedGain)
self.main_figure = MplFigure(self)
self.vbox.addWidget(self.main_figure.toolbar)
self.vbox.addWidget(self.main_figure.canvas)
self.setLayout(self.vbox)
self.setGeometry(300, 300, 350, 300)
self.setWindowTitle('LiveFFT')
self.show()
timer = QtCore.QTimer()
timer.timeoutconnect(self.handleNewData)
timer.start(100)
self.timer = timer
def initData(self):
self.mic = MicrophoneRecorder()
self.mic.start()
self.freq_vect = np.fft.rfftfreq(self.mic.chunksize,
1. / self.mic.rate)
self.time_vect = np.arrange(mic.chunksize,
dtype=np.float32) / mic.rate * 1000
def connectSlots(self):
pass
def initMplWidget(self):
pass
def handleNewData(self):
pass
