3 """ this file was written by Paul Brossier
4 it is released under the GNU/GPL license.
8 #from aubio.task import *
10 usage = "usage: %s [options] -i soundfile" % sys.argv[0]
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")
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",
32 action="store", dest="silence", default=-70,
33 help="silence threshold [default=-70]")
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,
43 help="buffer size [default=512]")
44 parser.add_option("-H","--hopsize",
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")
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",
64 action="store", dest="dcthreshold", default=1.,
65 help="onset peak picking DC component [default=1.]")
66 parser.add_option("-M","--mintol",
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",
78 action="store", dest="zerothres", default=0.008,
79 help="zero-crossing threshold for slicing [default=0.00008]")
83 parser.add_option("-p","--plot",
84 action="store_true", dest="plot", default=False,
86 parser.add_option("-x","--xsize",
88 action="store", dest="xsize", default=1.,
89 type='float', help="define xsize for plot")
90 parser.add_option("-y","--ysize",
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")
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,
114 (options, args) = parser.parse_args()
115 if not options.source_file:
116 print "no file name given\n", usage
120 if __name__ == '__main__':
121 options, args = parse_args()
123 hopsize = options.hopsize
124 bufsize = options.bufsize
125 samplerate = options.samplerate
126 source_file = options.source_file
128 from aubio import onset, source, sink
130 s = source(source_file, samplerate, hopsize)
131 if samplerate == 0: samplerate = s.get_samplerate()
133 o = onset(options.onset_method, bufsize, hopsize)
134 o.set_threshold(options.threshold)
138 this_slice = sink('/tmp/t-%02d.wav' % slice_number, samplerate)
144 #ring_buffer = hstack([ring_buffer, samples])
145 is_onset = o(samples)
147 this_onset = (block_read - 4. + is_onset[0]) * hopsize
149 print "%.4f" % ( this_onset / samplerate )
150 timestamps.append (this_onset)
153 this_slice = sink('/tmp/t-%02d.wav' % slice_number, samplerate)
154 this_slice(samples, read)
156 if read < hopsize: break
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)