def test_flanger_sine_quad(self):
"""
Test flanger effect with sine modulation and quadratic interpolation, compare to SoX implementation
"""
delay = 0.9
depth = 0.9
regen = 4.0
width = 0.23
speed = 1.3
phase = 25
noise_filepath = common_utils.get_asset_path('whitenoise.wav')
E = torchaudio.sox_effects.SoxEffectsChain()
E.set_input_file(noise_filepath)
E.append_effect_to_chain(
"flanger",
[delay, depth, regen, width, speed, "sine", phase, "quadratic"])
sox_output_waveform, sr = E.sox_build_flow_effects()
waveform, sample_rate = torchaudio.load(noise_filepath,
normalization=True)
output_waveform = F.flanger(waveform,
sample_rate,
delay,
depth,
regen,
width,
speed,
phase,
modulation='sinusoidal',
interpolation='quadratic')
torch.testing.assert_allclose(output_waveform,
sox_output_waveform,
atol=1e-4,
rtol=1e-5)
def test_flanger_triangle_linear(self):
"""
Test flanger effect with triangle modulation and linear interpolation, compare to SoX implementation
"""
delay = 0.6
depth = 0.87
regen = 3.0
width = 0.9
speed = 0.5
phase = 30
noise_filepath = common_utils.get_asset_path('whitenoise.wav')
E = torchaudio.sox_effects.SoxEffectsChain()
E.set_input_file(noise_filepath)
E.append_effect_to_chain(
"flanger",
[delay, depth, regen, width, speed, "triangle", phase, "linear"])
sox_output_waveform, sr = E.sox_build_flow_effects()
waveform, sample_rate = torchaudio.load(noise_filepath,
normalization=True)
output_waveform = F.flanger(waveform,
sample_rate,
delay,
depth,
regen,
width,
speed,
phase,
modulation='triangular',
interpolation='linear')
torch.testing.assert_allclose(output_waveform,
sox_output_waveform,
atol=1e-4,
rtol=1e-5)
def test_flanger_sine_quad(self):
"""
Test flanger effect with sine modulation and quadratic interpolation, compare to SoX implementation
"""
delay = 0.9
depth = 0.9
regen = 4.0
width = 0.23
speed = 1.3
phase = 25
E = torchaudio.sox_effects.SoxEffectsChain()
E.set_input_file(self.noise_filepath)
E.append_effect_to_chain(
"flanger",
[delay, depth, regen, width, speed, "sine", phase, "quadratic"])
sox_output_waveform, sr = E.sox_build_flow_effects()
output_waveform = F.flanger(self.noise_waveform,
self.NOISE_SAMPLE_RATE,
delay,
depth,
regen,
width,
speed,
phase,
modulation='sinusoidal',
interpolation='quadratic')
torch.testing.assert_allclose(output_waveform,
sox_output_waveform,
atol=1e-4,
rtol=1e-5)
def test_flanger_triangle_linear(self):
"""
Test flanger effect with triangle modulation and linear interpolation, compare to SoX implementation
"""
delay = 0.6
depth = 0.87
regen = 3.0
width = 0.9
speed = 0.5
phase = 30
E = torchaudio.sox_effects.SoxEffectsChain()
E.set_input_file(self.noise_filepath)
E.append_effect_to_chain(
"flanger",
[delay, depth, regen, width, speed, "triangle", phase, "linear"])
sox_output_waveform, sr = E.sox_build_flow_effects()
output_waveform = F.flanger(self.noise_waveform,
self.NOISE_SAMPLE_RATE,
delay,
depth,
regen,
width,
speed,
phase,
modulation='triangular',
interpolation='linear')
torch.testing.assert_allclose(output_waveform,
sox_output_waveform,
atol=1e-4,
rtol=1e-5)
def func(tensor):
delay = 0.8
depth = 0.88
regen = 3.0
width = 0.23
speed = 1.3
phase = 60.
sample_rate = 44100
return F.flanger(tensor, sample_rate, delay, depth, regen, width, speed,
phase, modulation='sinusoidal', interpolation='linear')
def test_flanger_sine_quad(self):
delay = 0.9
depth = 0.9
regen = 4.0
width = 0.23
speed = 1.3
phase = 25
sample_rate = 8000
data, path = self.get_whitenoise(sample_rate)
result = F.flanger(
data, sample_rate, delay, depth, regen, width, speed, phase,
modulation='sinusoidal', interpolation='quadratic')
self.assert_sox_effect(
result, path, ['flanger', delay, depth, regen, width, speed, 'sine', phase, 'quadratic'])
def test_flanger_sine_linear(self):
delay = 0.8
depth = 0.88
regen = 3.0
width = 0.23
speed = 1.3
phase = 60
sample_rate = 8000
data, path = self.get_whitenoise(sample_rate)
result = F.flanger(
data, sample_rate, delay, depth, regen, width, speed, phase,
modulation='sinusoidal', interpolation='linear')
self.assert_sox_effect(
result, path, ['flanger', delay, depth, regen, width, speed, 'sine', phase, 'linear'])
def test_flanger_triangle_quad(self):
delay = 0.8
depth = 0.88
regen = 3.0
width = 0.4
speed = 0.5
phase = 40
sample_rate = 8000
data, path = self.get_whitenoise(sample_rate)
result = F.flanger(
data, sample_rate, delay, depth, regen, width, speed, phase,
modulation='triangular', interpolation='quadratic')
self.assert_sox_effect(
result, path, ['flanger', delay, depth, regen, width, speed, 'triangle', phase, 'quadratic'])
