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import os
from nose.tools import assert_almost_equals
import simpl
import simpl.peak_detection as peak_detection
import simpl.partial_tracking as partial_tracking
import simpl.synthesis as synthesis
import simpl.residual as residual
float_precision = 2
frame_size = 512
hop_size = 512
max_peaks = 10
max_partials = 10
num_frames = 30
num_samples = num_frames * hop_size
audio_path = os.path.join(
os.path.dirname(__file__), 'audio/flute.wav'
)
libsms_residual_synthesis_path = os.path.join(
os.path.dirname(__file__), 'libsms_residual_synthesis.wav'
)
PeakDetection = peak_detection.PeakDetection
SMSPeakDetection = peak_detection.SMSPeakDetection
PartialTracking = partial_tracking.PartialTracking
SMSPartialTracking = partial_tracking.SMSPartialTracking
Synthesis = synthesis.Synthesis
SMSSynthesis = synthesis.SMSSynthesis
Residual = residual.Residual
SMSResidual = residual.SMSResidual
class TestResidual(object):
@classmethod
def setup_class(cls):
cls.audio = simpl.read_wav(audio_path)[0]
def test_basic(self):
pd = PeakDetection()
frames = pd.find_peaks(self.audio)
pt = PartialTracking()
frames = pt.find_partials(frames)
synth = Synthesis()
synth_audio = synth.synth(frames)
res = Residual()
residual_audio = res.find_residual(synth_audio, self.audio)
assert len(residual_audio)
class TestSMSResidual(object):
@classmethod
def setup_class(cls):
cls.audio = simpl.read_wav(audio_path)[0]
cls.audio = cls.audio[0:num_samples]
def test_basic(self):
pd = SMSPeakDetection()
pd.hop_size = hop_size
frames = pd.find_peaks(self.audio)
pt = SMSPartialTracking()
pt.max_partials = max_partials
frames = pt.find_partials(frames)
synth = SMSSynthesis()
synth.hop_size = hop_size
synth_audio = synth.synth(frames)
res = SMSResidual()
residual_audio = res.find_residual(synth_audio, self.audio)
assert len(residual_audio)
def test_residual_synthesis(self):
res = SMSResidual()
res.hop_size = hop_size
simpl_residual = res.synth(self.audio)
sms_residual, sampling_rate = simpl.read_wav(
libsms_residual_synthesis_path
)
assert len(simpl_residual) == len(sms_residual)
for i in range(len(simpl_residual)):
assert_almost_equals(simpl_residual[i], sms_residual[i],
float_precision)
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