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| @@ -4,27 +4,25 @@ import sys · 3 unmodified lines | ||
| 4 | 4 | from aubio import source, sink, pvoc |
| 5 | 5 | |
| 6 | 6 | if __name__ == '__main__': |
| 7 | − if len(sys.argv) < 2: | |
| 8 | − print 'usage: %s <inputfile> <outputfile>' % sys.argv[0] | |
| 9 | − sys.exit(1) | |
| 10 | − samplerate = 44100 | |
| 11 | − f = source(sys.argv[1], samplerate, 256) | |
| 12 | − g = sink(sys.argv[2], samplerate) | |
| 13 | − total_frames, read = 0, 256 | |
| 7 | + if len(sys.argv) < 2: | |
| 8 | + print 'usage: %s <inputfile> <outputfile>' % sys.argv[0] | |
| 9 | + sys.exit(1) | |
| 10 | + samplerate = 44100 | |
| 11 | + f = source(sys.argv[1], samplerate, 256) | |
| 12 | + g = sink(sys.argv[2], samplerate) | |
| 13 | + total_frames, read = 0, 256 | |
| 14 | 14 | |
| 15 | − win_s = 512 # fft size | |
| 16 | − hop_s = win_s / 2 # hop size | |
| 17 | − pv = pvoc(win_s, hop_s) # phase vocoder | |
| 15 | + win_s = 512 # fft size | |
| 16 | + hop_s = win_s / 2 # hop size | |
| 17 | + pv = pvoc(win_s, hop_s) # phase vocoder | |
| 18 | 18 | |
| 19 | − while read: | |
| 20 | − samples, read = f() | |
| 21 | − spectrum = pv(samples) # compute spectrum | |
| 22 | − #spectrum.norm *= .8 # reduce amplitude a bit | |
| 23 | − spectrum.phas[:] = 0. # zero phase | |
| 24 | − new_samples = pv.rdo(spectrum) # compute modified samples | |
| 25 | − g(new_samples, read) # write to output | |
| 26 | − total_frames += read | |
| 19 | + while read: | |
| 20 | + samples, read = f() | |
| 21 | + spectrum = pv(samples) # compute spectrum | |
| 22 | + #spectrum.norm *= .8 # reduce amplitude a bit | |
| 23 | + spectrum.phas[:] = 0. # zero phase | |
| 24 | + new_samples = pv.rdo(spectrum) # compute modified samples | |
| 25 | + g(new_samples, read) # write to output | |
| 26 | + total_frames += read | |
| 27 | 27 | |
| 28 | − print "wrote", total_frames, "from", f.uri, "to", g.uri | |
| 29 | − | |
| 30 | − | |
| 28 | + print "wrote", total_frames, "from", f.uri, "to", g.uri | |