def test_trim_silence(self):
sound = SoundBuffer(
filename='tests/sounds/guitar1s.wav').env('hannout')
firstval = abs(sum(sound[0]))
lastval = abs(sum(sound[-1]))
sound = sound.pad(start=1, end=1)
self.assertEqual(sound.dur, 3)
sound.write('tests/renders/trim_silence_before.wav')
for threshold in (0, 0.01, 0.5):
trimstart = sound.trim(start=True, end=False, threshold=threshold)
trimstart.write('tests/renders/trim_silence_start%s.wav' %
threshold)
trimend = sound.trim(start=False, end=True, threshold=threshold)
trimend.write('tests/renders/trim_silence_end%s.wav' % threshold)
def test_save_buffer_to_soundfile(self):
filename = path.join(self.soundfiles, 'test_save_buffer_to_soundfile.{}')
sound = SoundBuffer(length=44100)
sound.write(filename.format('wav'))
self.assertTrue(path.isfile(filename.format('wav')))
sound.write(filename.format('flac'))
self.assertTrue(path.isfile(filename.format('flac')))
sound.write(filename.format('ogg'))
self.assertTrue(path.isfile(filename.format('ogg')))