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| 1 | +#! /usr/bin/env python | |
| 2 | + | |
| 3 | +""" this file was written by Paul Brossier | |
| 4 | + it is released under the GNU/GPL license. | |
| 5 | +""" | |
| 6 | + | |
| 7 | +import sys | |
| 8 | +#from aubio.task import * | |
| 9 | + | |
| 10 | +usage = "usage: %s [options] -i soundfile" % sys.argv[0] | |
| 11 | + | |
| 12 | +def parse_args(): | |
| 13 | + from optparse import OptionParser | |
| 14 | + parser = OptionParser(usage=usage) | |
| 15 | + parser.add_option("-i", "--input", action = "store", dest = "source_file", | |
| 16 | + help="input sound file to analyse", metavar = "<source_file>") | |
| 17 | + parser.add_option("-m","--method", | |
| 18 | + action="store", dest="onset_method", default='default', | |
| 19 | + metavar = "<onset_method>", | |
| 20 | + help="onset detection method [default=default] \ | |
| 21 | + complexdomain|hfc|phase|specdiff|energy|kl|mkl") | |
| 22 | + # cutting methods | |
| 23 | + """ | |
| 24 | + parser.add_option("-b","--beat", | |
| 25 | + action="store_true", dest="beat", default=False, | |
| 26 | + help="use beat locations") | |
| 27 | + parser.add_option("-S","--silencecut", | |
| 28 | + action="store_true", dest="silencecut", default=False, | |
| 29 | + help="use silence locations") | |
| 30 | + parser.add_option("-s","--silence", | |
| 31 | + metavar = "<value>", | |
| 32 | + action="store", dest="silence", default=-70, | |
| 33 | + help="silence threshold [default=-70]") | |
| 34 | + """ | |
| 35 | + # algorithm parameters | |
| 36 | + parser.add_option("--samplerate", | |
| 37 | + metavar = "<freq>", type='int', | |
| 38 | + action="store", dest="samplerate", default=0, | |
| 39 | + help="samplerate at which the file should be represented") | |
| 40 | + parser.add_option("-B","--bufsize", | |
| 41 | + action="store", dest="bufsize", default=512, | |
| 42 | + metavar = "<size>", | |
| 43 | + help="buffer size [default=512]") | |
| 44 | + parser.add_option("-H","--hopsize", | |
| 45 | + metavar = "<size>", | |
| 46 | + action="store", dest="hopsize", default=256, | |
| 47 | + help="overlap size [default=256]") | |
| 48 | + parser.add_option("-t","--threshold", | |
| 49 | + metavar = "<value>", type="float", | |
| 50 | + action="store", dest="threshold", default=0.3, | |
| 51 | + help="onset peak picking threshold [default=0.3]") | |
| 52 | + parser.add_option("-c","--cut", | |
| 53 | + action="store_true", dest="cut", default=False, | |
| 54 | + help="cut input sound file at detected labels \ | |
| 55 | + best used with option -L") | |
| 56 | + """ | |
| 57 | + parser.add_option("-D","--delay", | |
| 58 | + action = "store", dest = "delay", type = "float", | |
| 59 | + metavar = "<seconds>", default=0, | |
| 60 | + help="number of seconds to take back [default=system]\ | |
| 61 | + default system delay is 3*hopsize/samplerate") | |
| 62 | + parser.add_option("-C","--dcthreshold", | |
| 63 | + metavar = "<value>", | |
| 64 | + action="store", dest="dcthreshold", default=1., | |
| 65 | + help="onset peak picking DC component [default=1.]") | |
| 66 | + parser.add_option("-M","--mintol", | |
| 67 | + metavar = "<value>", | |
| 68 | + action="store", dest="mintol", default=0.048, | |
| 69 | + help="minimum inter onset interval [default=0.048]") | |
| 70 | + parser.add_option("-L","--localmin", | |
| 71 | + action="store_true", dest="localmin", default=False, | |
| 72 | + help="use local minima after peak detection") | |
| 73 | + parser.add_option("-d","--derivate", | |
| 74 | + action="store_true", dest="derivate", default=False, | |
| 75 | + help="derivate onset detection function") | |
| 76 | + parser.add_option("-z","--zerocross", | |
| 77 | + metavar = "<value>", | |
| 78 | + action="store", dest="zerothres", default=0.008, | |
| 79 | + help="zero-crossing threshold for slicing [default=0.00008]") | |
| 80 | + """ | |
| 81 | + # plotting functions | |
| 82 | + """ | |
| 83 | + parser.add_option("-p","--plot", | |
| 84 | + action="store_true", dest="plot", default=False, | |
| 85 | + help="draw plot") | |
| 86 | + parser.add_option("-x","--xsize", | |
| 87 | + metavar = "<size>", | |
| 88 | + action="store", dest="xsize", default=1., | |
| 89 | + type='float', help="define xsize for plot") | |
| 90 | + parser.add_option("-y","--ysize", | |
| 91 | + metavar = "<size>", | |
| 92 | + action="store", dest="ysize", default=1., | |
| 93 | + type='float', help="define ysize for plot") | |
| 94 | + parser.add_option("-f","--function", | |
| 95 | + action="store_true", dest="func", default=False, | |
| 96 | + help="print detection function") | |
| 97 | + parser.add_option("-n","--no-onsets", | |
| 98 | + action="store_true", dest="nplot", default=False, | |
| 99 | + help="do not plot detected onsets") | |
| 100 | + parser.add_option("-O","--outplot", | |
| 101 | + metavar = "<output_image>", | |
| 102 | + action="store", dest="outplot", default=None, | |
| 103 | + help="save plot to output.{ps,png}") | |
| 104 | + parser.add_option("-F","--spectrogram", | |
| 105 | + action="store_true", dest="spectro", default=False, | |
| 106 | + help="add spectrogram to the plot") | |
| 107 | + """ | |
| 108 | + parser.add_option("-v","--verbose", | |
| 109 | + action="store_true", dest="verbose", default=True, | |
| 110 | + help="make lots of noise [default]") | |
| 111 | + parser.add_option("-q","--quiet", | |
| 112 | + action="store_false", dest="verbose", default=True, | |
| 113 | + help="be quiet") | |
| 114 | + (options, args) = parser.parse_args() | |
| 115 | + if not options.source_file: | |
| 116 | + print "no file name given\n", usage | |
| 117 | + sys.exit(1) | |
| 118 | + return options, args | |
| 119 | + | |
| 120 | +if __name__ == '__main__': | |
| 121 | + options, args = parse_args() | |
| 122 | + | |
| 123 | + hopsize = options.hopsize | |
| 124 | + bufsize = options.bufsize | |
| 125 | + samplerate = options.samplerate | |
| 126 | + source_file = options.source_file | |
| 127 | + | |
| 128 | + from aubio import onset, source, sink | |
| 129 | + | |
| 130 | + s = source(source_file, samplerate, hopsize) | |
| 131 | + if samplerate == 0: samplerate = s.get_samplerate() | |
| 132 | + | |
| 133 | + o = onset(options.onset_method, bufsize, hopsize) | |
| 134 | + o.set_threshold(options.threshold) | |
| 135 | + | |
| 136 | + slice_number = 0 | |
| 137 | + #if options.cut: | |
| 138 | + this_slice = sink('/tmp/t-%02d.wav' % slice_number, samplerate) | |
| 139 | + | |
| 140 | + timestamps = [] | |
| 141 | + block_read = 0 | |
| 142 | + while True: | |
| 143 | + samples, read = s() | |
| 144 | + #ring_buffer = hstack([ring_buffer, samples]) | |
| 145 | + is_onset = o(samples) | |
| 146 | + if is_onset: | |
| 147 | + this_onset = (block_read - 4. + is_onset[0]) * hopsize | |
| 148 | + if options.verbose: | |
| 149 | + print "%.4f" % ( this_onset / samplerate ) | |
| 150 | + timestamps.append (this_onset) | |
| 151 | + del this_slice | |
| 152 | + slice_number += 1 | |
| 153 | + this_slice = sink('/tmp/t-%02d.wav' % slice_number, samplerate) | |
| 154 | + this_slice(samples, read) | |
| 155 | + block_read += 1 | |
| 156 | + if read < hopsize: break | |
| 157 | + | |
| 158 | + # print some info | |
| 159 | + duration = float ( block_read * hopsize + read ) / samplerate | |
| 160 | + nstamps = len(timestamps) | |
| 161 | + info = 'found %(nstamps)d timestamps in %(source_file)s' % locals() | |
| 162 | + info += ' (read %(duration).2fs at %(samplerate)dHz)\n' % locals() | |
| 163 | + sys.stderr.write(info) | |