feature/autosinkfeature/cnnfeature/cnn_orgfeature/constantqfeature/crepefeature/crepe_orgfeature/pitchshiftfeature/pydocstringsfeature/timestretchfix/ffmpeg5pitchshiftsamplertimestretchyinfft+
Last change
on this file since 1b62ee9 was
01f7598,
checked in by Paul Brossier <piem@piem.org>, 9 years ago
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python/demos/demo_filter.py: clean-up
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Property mode set to
100755
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File size:
994 bytes
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1 | #! /usr/bin/env python |
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2 | |
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3 | |
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4 | def apply_filter(path): |
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5 | from aubio import source, sink, digital_filter |
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6 | from os.path import basename, splitext |
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7 | |
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8 | # open input file, get its samplerate |
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9 | s = source(path) |
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10 | samplerate = s.samplerate |
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11 | |
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12 | # create an A-weighting filter |
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13 | f = digital_filter(7) |
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14 | f.set_a_weighting(samplerate) |
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15 | # alternatively, apply another filter |
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16 | |
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17 | # create output file |
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18 | o = sink("filtered_" + splitext(basename(path))[0] + ".wav", samplerate) |
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19 | |
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20 | total_frames = 0 |
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21 | while True: |
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22 | samples, read = s() |
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23 | filtered_samples = f(samples) |
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24 | o(filtered_samples, read) |
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25 | total_frames += read |
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26 | if read < s.hop_size: break |
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27 | |
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28 | duration = total_frames / float(samplerate) |
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29 | print ("read {:s}".format(s.uri)) |
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30 | print ("applied A-weighting filtered ({:d} Hz)".format(samplerate)) |
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31 | print ("wrote {:s} ({:.2f} s)".format(o.uri, duration)) |
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32 | |
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33 | if __name__ == '__main__': |
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34 | import sys |
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35 | for f in sys.argv[1:]: |
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36 | apply_filter(f) |
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