feature/autosinkfeature/cnnfeature/cnn_orgfeature/constantqfeature/crepefeature/crepe_orgfeature/pitchshiftfeature/pydocstringsfeature/timestretchfix/ffmpeg5pitchshiftsamplertimestretchyinfft+
Last change
on this file since a4ec189 was
459e46f,
checked in by Paul Brossier <piem@piem.org>, 12 years ago
|
python/demos/: update and add some demos
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-
Property mode set to
100755
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File size:
941 bytes
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Rev | Line | |
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[459e46f] | 1 | #! /usr/bin/env python |
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| 2 | |
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| 3 | import sys |
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| 4 | from aubio import tempo, source |
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| 5 | |
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| 6 | win_s = 512 # fft size |
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| 7 | hop_s = win_s / 2 # hop size |
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| 8 | |
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| 9 | if len(sys.argv) < 2: |
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| 10 | print "Usage: %s <filename> [samplerate]" % sys.argv[0] |
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| 11 | sys.exit(1) |
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| 12 | |
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| 13 | filename = sys.argv[1] |
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| 14 | |
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| 15 | samplerate = 0 |
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| 16 | if len( sys.argv ) > 2: samplerate = int(sys.argv[2]) |
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| 17 | |
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| 18 | s = source(filename, samplerate, hop_s) |
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| 19 | samplerate = s.samplerate |
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| 20 | o = tempo("default", win_s, hop_s, samplerate) |
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| 21 | |
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| 22 | # tempo detection delay, in samples |
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| 23 | # default to 4 blocks delay to catch up with |
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| 24 | delay = 4. * hop_s |
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| 25 | |
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| 26 | # list of beats, in samples |
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| 27 | beats = [] |
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| 28 | |
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| 29 | # total number of frames read |
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| 30 | total_frames = 0 |
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| 31 | while True: |
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| 32 | samples, read = s() |
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| 33 | is_beat = o(samples) |
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| 34 | if is_beat: |
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| 35 | this_beat = int(total_frames - delay + is_beat[0] * hop_s) |
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| 36 | print "%f" % (this_beat / float(samplerate)) |
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| 37 | beats.append(this_beat) |
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| 38 | total_frames += read |
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| 39 | if read < hop_s: break |
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| 40 | #print len(beats) |
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