feature/cnnfeature/crepefeature/crepe_orgfix/ffmpeg5
Last change
on this file since 63fc1df was
4120fbc,
checked in by Paul Brossier <piem@piem.org>, 9 years ago
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python/demos: python3 and double precision compatibility
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-
Property mode set to
100755
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File size:
1015 bytes
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Rev | Line | |
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[7175ed4] | 1 | #! /usr/bin/env python |
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[e693b6c] | 2 | |
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| 3 | import sys |
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| 4 | from aubio import source, sink, pvoc |
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| 5 | |
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| 6 | if __name__ == '__main__': |
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[0c6e3b0] | 7 | if len(sys.argv) < 2: |
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[4120fbc] | 8 | print('usage: %s <inputfile> <outputfile>' % sys.argv[0]) |
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[0c6e3b0] | 9 | sys.exit(1) |
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| 10 | samplerate = 44100 |
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| 11 | f = source(sys.argv[1], samplerate, 256) |
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| 12 | g = sink(sys.argv[2], samplerate) |
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| 13 | total_frames, read = 0, 256 |
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[e693b6c] | 14 | |
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[0c6e3b0] | 15 | win_s = 512 # fft size |
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[4120fbc] | 16 | hop_s = win_s // 2 # hop size |
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[0c6e3b0] | 17 | pv = pvoc(win_s, hop_s) # phase vocoder |
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[e693b6c] | 18 | |
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[0c6e3b0] | 19 | while read: |
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| 20 | samples, read = f() |
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| 21 | spectrum = pv(samples) # compute spectrum |
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| 22 | #spectrum.norm *= .8 # reduce amplitude a bit |
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| 23 | spectrum.phas[:] = 0. # zero phase |
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| 24 | new_samples = pv.rdo(spectrum) # compute modified samples |
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| 25 | g(new_samples, read) # write to output |
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| 26 | total_frames += read |
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[e693b6c] | 27 | |
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[4120fbc] | 28 | format_str = "read {:d} samples from {:s}, written to {:s}" |
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| 29 | print(format_str.format(total_frames, f.uri, g.uri)) |
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