def test_compressor(self):
snd = dsp.read('tests/sounds/guitar1s.wav')
ratio = 4
threshold = -10
attack = 0.2
release = 0.2
out = fx.compressor(snd, ratio, threshold, attack, release)
out.write('tests/renders/fx_compressor.wav')
total_length = sum(bars)
stems = {}
for stem, cb in ORC.items():
stems[stem] = dsp.buffer(length=total_length)
pos = 0
print('STEM', stem)
for i, l in enumerate(bars):
l = 3 if l <= 0 else l
bar = cb(l, pos, total_length)
stems[stem].dub(bar, pos)
pos += l
print(' %s normalize' % stem)
stems[stem] = fx.norm(stems[stem], 1)
print(' %s write' % stem)
stems[stem].write('stem-%s.wav' % stem)
print()
print('MIXING', total_length)
out = dsp.buffer(length=total_length)
for stem, layer in stems.items():
out.dub(layer)
print('COMPRESSING/WRITING', total_length)
out *= 10
out = fx.compressor(out, -10, 10)
out = fx.norm(out, 1)
out.write('amber-bars.wav')