def __init__(self):
super().__init__()
# variables iniciales de componentes
self.started = False
self.wave = 'sinusoidal'
self.fs= 44100
self.LFO = np.ones(44100)
self.t = np.linspace(0,1,self.fs)
self.noise = (np.random.rand(self.fs) * 2) - 1
self.copy_noise = self.noise
self.ftype = 'low'
self.forder = 4
self.delay = True
p = self.palette()
p.setColor(self.backgroundRole(), Qt.black)
self.setPalette(p)
self.a_knob = 11025
self.d_knob = 11025
self.s_knob = 5000
self.r_knob = 11025
# inicializacion de objetos de la GUI
self.myLabel1 = QLabel(self)
self.myLabel1.setText('Attack: 0ms')
self.myLabel1.setStyleSheet("color: white;")
self.myLabel1.move(40, 10)
self.mySlider1 = QSlider(Qt.Horizontal, self)
self.mySlider1.setGeometry(30, 40, 200, 30)
self.mySlider1.setMinimum(1)
self.mySlider1.name = 'Attack'
self.mySlider1.setMaximum(22050)
self.mySlider1.setValue(self.a_knob)
self.mySlider1.valueChanged[int].connect(self.change_knob)
self.myLabel2 = QLabel(self)
self.myLabel2.setText('Decay: 0ms')
self.myLabel2.setStyleSheet("color: white;")
self.myLabel2.move(40, 70)
self.mySlider2 = QSlider(Qt.Horizontal, self)
self.mySlider2.setGeometry(30, 100, 200, 30)
self.mySlider2.setMinimum(1)
self.mySlider2.name = 'Decay'
self.mySlider2.setMaximum(11025)
self.mySlider2.setValue(self.d_knob)
self.mySlider2.valueChanged[int].connect(self.change_knob)
self.myLabel3 = QLabel(self)
self.myLabel3.setText('Sustain: 0ms')
self.myLabel3.setStyleSheet("color: white;")
self.myLabel3.move(40, 130)
self.mySlider3 = QSlider(Qt.Horizontal, self)
self.mySlider3.setGeometry(30, 160, 200, 30)
self.mySlider3.setMinimum(1)
self.mySlider3.name = 'Sustain'
self.mySlider3.setMaximum(11025)
self.mySlider3.setValue(self.s_knob)
self.mySlider3.valueChanged[int].connect(self.change_knob)
self.myLabelR = QLabel(self)
self.myLabelR.setText('Release: 0ms')
self.myLabelR.move(40, 190)
self.mySliderR = QSlider(Qt.Horizontal, self)
self.mySliderR.setGeometry(30, 220, 200, 30)
self.mySliderR.setMinimum(1)
self.mySliderR.name = 'Release'
self.mySliderR.setMaximum(11025)
self.mySliderR.setValue(self.r_knob)
self.mySliderR.valueChanged[int].connect(self.change_knob)
self.myLabel4 = QLabel(self)
self.myLabel4.setText('LFO: 1Hz')
self.myLabel4.setStyleSheet("color: white;")
self.myLabel4.move(40, 310)
self.mySlider4 = QSlider(Qt.Horizontal, self)
self.mySlider4.setGeometry(30, 340, 200, 30)
self.mySlider4.setMinimum(1)
self.mySlider4.setMaximum(100)
self.mySlider4.setValue(1)
self.mySlider4.name = 'slider_lfo'
self.mySlider4.valueChanged[int].connect(self.active_lfo)
self.myLabel5 = QLabel(self)
self.myLabel5.setText('LFO offset')
self.myLabel5.setStyleSheet("color: white;")
self.myLabel5.move(40, 370)
self.mySlider5 = QSlider(Qt.Horizontal, self)
self.mySlider5.setGeometry(30, 400, 200, 30)
self.mySlider5.setMinimum(1)
self.mySlider5.setMaximum(100)
self.mySlider5.setValue(100)
self.mySlider5.name = 'slider_lfo'
self.mySlider5.valueChanged[int].connect(self.active_lfo)
self.myLabel6 = QLabel(self)
self.myLabel6.setText('Cutoff Frequency')
self.myLabel6.setStyleSheet("color: white;")
self.myLabel6.move(300, 230)
self.mySlider6 = QSlider(Qt.Horizontal, self)
self.mySlider6.setGeometry(300, 260, 200, 30)
self.mySlider6.setMinimum(100)
self.mySlider6.setMaximum(8000)
self.mySlider6.setValue(100)
self.mySlider6.name = 'slider_filter'
self.mySlider6.valueChanged[int].connect(self.set_filter)
self.myLabelQ = QLabel(self)
self.myLabelQ.setText('Band Width')
self.myLabelQ.move(300, 290)
self.mySliderQ = QSlider(Qt.Horizontal, self)
self.mySliderQ.setGeometry(300, 320, 200, 30)
self.mySliderQ.setMinimum(10)
self.mySliderQ.setMaximum(1000)
self.mySliderQ.setValue(10)
self.mySliderQ.name = 'slider_filter'
self.mySliderQ.valueChanged[int].connect(self.set_filter)
self.myLabel7 = QLabel(self)
self.myLabel7.setText('Filter Order')
self.myLabel7.setStyleSheet("color: white;")
self.myLabel7.move(300, 350)
self.mySlider7 = QSlider(Qt.Horizontal, self)
self.mySlider7.setGeometry(300, 380, 200, 30)
self.mySlider7.setMinimum(1)
self.mySlider7.setMaximum(16)
self.mySlider7.setValue(4)
self.mySlider7.name = 'order_filter'
self.mySlider7.valueChanged[int].connect(self.set_order)
self.myLabel8 = QLabel(self)
self.myLabel8.setText('Delay')
self.myLabel8.setStyleSheet("color: white;")
self.myLabel8.move(40, 490)
self.mySlider8 = QSlider(Qt.Horizontal, self)
self.mySlider8.setGeometry(40, 520, 200, 30)
self.mySlider8.setMinimum(1)
self.mySlider8.setMaximum(22050)
self.mySlider8.setValue(11025)
self.mySlider8.name = 'delay'
self.mySlider8.valueChanged[int].connect(self.set_delay)
radiobutton2 = QRadioButton("Highpass", self)
radiobutton2.name = "highpass"
radiobutton2.toggled.connect(self.onClickedF)
radiobutton2.setStyleSheet("color: white;")
radiobutton2.setGeometry(300, 420, 200, 32)
radiobutton2 = QRadioButton("Lowpass", self)
radiobutton2.name = "lowpass"
radiobutton2.toggled.connect(self.onClickedF)
radiobutton2.setStyleSheet("color: white;")
radiobutton2.setGeometry(300, 460, 200, 32)
radiobutton2 = QRadioButton("Bandpass", self)
radiobutton2.name = "bandpass"
radiobutton2.toggled.connect(self.onClickedF)
radiobutton2.setStyleSheet("color: white;")
radiobutton2.setGeometry(300, 500, 200, 32)
radiobutton2 = QRadioButton("Bandstop", self)
radiobutton2.name = "bandstop"
radiobutton2.toggled.connect(self.onClickedF)
radiobutton2.setStyleSheet("color: white;")
radiobutton2.setGeometry(300, 540, 200, 32)
self.graphWidget1 = pg.PlotWidget(self)
self.graphWidget1.setGeometry(300,20,300,150)
self.graphWidget2 = pg.PlotWidget(self)
self.graphWidget2.setGeometry(650,20,300,150)
self.graphWidget3 = pg.PlotWidget(self)
self.graphWidget3.setGeometry(650,190,300,150)
radiobutton = QRadioButton("Sine", self)
radiobutton.setChecked(True)
radiobutton.wave = "sinusoidal"
radiobutton.toggled.connect(self.onClicked)
radiobutton.setStyleSheet("color: white;")
radiobutton.setGeometry(1000, 40, 200, 30)
radiobutton = QRadioButton("Triangle", self)
radiobutton.wave = "triangle"
radiobutton.toggled.connect(self.onClicked)
radiobutton.setStyleSheet("color: white;")
radiobutton.setGeometry(1000, 100, 200, 31)
radiobutton = QRadioButton("Sawtooth", self)
radiobutton.wave = "sawtooth"
radiobutton.toggled.connect(self.onClicked)
radiobutton.setStyleSheet("color: white;")
radiobutton.setGeometry(1000, 160, 200, 32)
radiobutton = QRadioButton("Square", self)
radiobutton.wave = "square"
radiobutton.toggled.connect(self.onClicked)
radiobutton.setStyleSheet("color: white;")
radiobutton.setGeometry(1000, 220, 200, 32)
radiobutton = QRadioButton("Noise", self)
radiobutton.wave = "noise"
radiobutton.toggled.connect(self.onClicked)
radiobutton.setStyleSheet("color: white;")
radiobutton.setGeometry(1000, 280, 200, 32)
self.lfo = QCheckBox('LFO', self)
self.lfo.name = 'lfo_box'
self.lfo.toggled.connect(self.active_lfo)
self.lfo.setStyleSheet("color: white;")
self.lfo.setGeometry(40, 250, 100, 32)
self.lowpass_check = QCheckBox('Filter', self)
self.lowpass_check.name = 'lowpass'
self.lowpass_check.setStyleSheet("color: white;")
self.lowpass_check.setGeometry(300, 190, 100, 32)
self.delay_box = QCheckBox('Delay', self)
self.delay_box.name = 'delay_box'
self.delay_box.toggled.connect(self.set_delay)
self.delay_box.setStyleSheet("color: white;")
self.delay_box.setGeometry(40, 430, 100, 32)
self.calculate_ASDR(self.a_knob, self.d_knob, self.s_knob, self.r_knob)
play_button = QPushButton('Play', self)
play_button.name = 'play'
play_button.clicked.connect(self.play_mode)
play_button.setStyleSheet("color: white; border: 1px solid white; border-radius: 5px; background: black;")
play_button.setGeometry(700, 380, 200, 32)
play_button = QPushButton('Stop', self)
play_button.name = 'stop'
play_button.clicked.connect(self.play_mode)
play_button.setStyleSheet("color: white; border: 1px solid white; border-radius: 5px; background: black;")
play_button.setGeometry(700, 440, 200, 32)
order = 12 #orden del filtro
nyq = 0.5 * self.fs #máxima frecuencia
normal_cutoff = 100 / nyq #calculo real de frecuencia de corte
b, a = butter(order, normal_cutoff, btype='low', analog=False) #generacion de numerador y denominador del modelo matematico del filtro
w, h = signal.freqs(b, a)
self.graphWidget3.setLogMode(True, False)
self.graphWidget3.setXRange(1,5)
self.graphWidget3.setYRange(-100,100)
self.data_filter = self.graphWidget3.plot(w, 20 * np.log10(abs(h)))
# inicializar ventana de GUI
self.setGeometry(50,50,1100,600)
self.setWindowTitle("Synthesizer")
self.show()
