def getSquareSound(freq,beat,subdivison, bpm=60):
beat_in_mili = (60. / bpm) * 1000. /subdivison * beat
square = Square(freq)
sound = square.to_audio_segment(beat_in_mili)
sound = sound.fade_in(int(beat_in_mili*.05))
sound = sound.fade_out(int(beat_in_mili*.05))
return sound
def from_generator(self, freq, duration, wavetype):
"""
Sets the Audio Object's audio segment to be the audio generated
by a wave generator.
Arguments
freq -- the frequency of the wave to be generated (in Hz) (int)
duration -- the duration of the wave to be generated (in milliseconds) (int)
wavetype -- the type of wave to be generated. A string containing either
Sine, Square, Sawtooth, or Triangle (case insenstivie) (str)
"""
_check_type(wavetype, "wavetype", str)
_check_type(freq, "freq", int)
_check_type(duration, "duration", int)
self._duration = duration
if wavetype.upper() == "SINE":
wave = Sine(freq)
elif wavetype.upper() == "SAWTOOTH":
wave = Sawtooth(freq)
elif wavetype.upper() == "SQUARE":
wave = Square(freq)
elif wavetype.upper() == "TRIANGLE":
wave = Triangle(freq)
else:
raise ValueError("Error! Invalid Wavetype \"" + wavetype +
"\" passed to from_generator")
self._audioseg = wave.to_audio_segment(duration)
def make_tone(self, freq):
if self.waveEntry.get() == "Sine":
tone = (Sine(freq).to_audio_segment(
duration=int(self.durEntry.get())).fade_out(
self.slider.get()).fade_in(self.slider2.get())).apply_gain(
self.slider3.get()) + self.slider4.get()
elif self.waveEntry.get() == "Square":
tone = (Square(freq).to_audio_segment(
duration=int(self.durEntry.get())).fade_out(
self.slider.get()).fade_in(self.slider2.get())).apply_gain(
self.slider3.get()) + self.slider4.get()
elif self.waveEntry.get() == "Triangle":
tone = (Triangle(freq).to_audio_segment(
duration=int(self.durEntry.get())).fade_out(
self.slider.get()).fade_in(self.slider2.get())).apply_gain(
self.slider3.get()) + self.slider4.get()
elif self.waveEntry.get() == "Sawtooth":
tone = (Sawtooth(freq).to_audio_segment(
duration=int(self.durEntry.get())).fade_out(
self.slider.get()).fade_in(self.slider2.get())).apply_gain(
self.slider3.get()) + self.slider4.get()
elif self.waveEntry.get() == "Pulse":
tone = (Pulse(freq).to_audio_segment(
duration=int(self.durEntry.get())).fade_out(
self.slider.get()).fade_in(self.slider2.get())).apply_gain(
self.slider3.get()) + self.slider4.get()
play(tone)
def test_loudness(self):
sine_dbfs = Sine(440).to_audio_segment().dBFS
square_dbfs = Square(440).to_audio_segment().dBFS
white_noise_dbfs = WhiteNoise().to_audio_segment().dBFS
self.assertAlmostEqual(sine_dbfs, -3.0, places=1)
self.assertAlmostEqual(square_dbfs, 0.0, places=1)
self.assertAlmostEqual(white_noise_dbfs, -5, places=0)
def test_with_smoke(self):
Sine(440).to_audio_segment()
Square(440).to_audio_segment()
Triangle(440).to_audio_segment()
Pulse(440, duty_cycle=0.75).to_audio_segment()
Sawtooth(440, duty_cycle=0.75).to_audio_segment()
WhiteNoise().to_audio_segment()
def test_lowpass_filter_reduces_loudness(self):
s = Square(200).to_audio_segment()
less_treble = s.low_pass_filter(400)
self.assertTrue(less_treble.dBFS < s.dBFS)
def test_highpass_filter_reduces_loudness(self):
s = Square(200).to_audio_segment()
less_bass = s.high_pass_filter(400)
self.assertTrue(less_bass.dBFS < s.dBFS)
def test_lowpass_filter_reduces_loudness(self):
s = Square(200).to_audio_segment()
less_treble = s.low_pass_filter(400)
self.assertTrue(less_treble.dBFS < s.dBFS)
def test_highpass_filter_reduces_loudness(self):
s = Square(200).to_audio_segment()
less_bass = s.high_pass_filter(400)
self.assertTrue(less_bass.dBFS < s.dBFS)
