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]
11 usage += "\n help: %s -h" % sys.argv[0]
14 from optparse import OptionParser
15 parser = OptionParser(usage=usage)
16 parser.add_option("-i", "--input", action = "store", dest = "source_file",
17 help="input sound file to analyse", metavar = "<source_file>")
18 parser.add_option("-O","--onset-method",
19 action="store", dest="onset_method", default='default',
20 metavar = "<onset_method>",
21 help="onset detection method [default=default] \
22 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")
28 parser.add_option("-S","--silencecut",
29 action="store_true", dest="silencecut", default=False,
30 help="use silence locations")
31 parser.add_option("-s","--silence",
33 action="store", dest="silence", default=-70,
34 help="silence threshold [default=-70]")
36 # algorithm parameters
37 parser.add_option("-r", "--samplerate",
38 metavar = "<freq>", type='int',
39 action="store", dest="samplerate", default=0,
40 help="samplerate at which the file should be represented")
41 parser.add_option("-B","--bufsize",
42 action="store", dest="bufsize", default=512,
43 metavar = "<size>", type='int',
44 help="buffer size [default=512]")
45 parser.add_option("-H","--hopsize",
46 metavar = "<size>", type='int',
47 action="store", dest="hopsize", default=256,
48 help="overlap size [default=256]")
49 parser.add_option("-t","--onset-threshold",
50 metavar = "<value>", type="float",
51 action="store", dest="threshold", default=0.3,
52 help="onset peak picking threshold [default=0.3]")
53 parser.add_option("-c","--cut",
54 action="store_true", dest="cut", default=False,
55 help="cut input sound file at detected labels \
56 best used with option -L")
59 parser.add_option("-M","--minioi",
60 metavar = "<value>", type='string',
61 action="store", dest="minioi", default="12ms",
62 help="minimum inter onset interval [default=12ms]")
65 parser.add_option("-D","--delay",
66 action = "store", dest = "delay", type = "float",
67 metavar = "<seconds>", default=0,
68 help="number of seconds to take back [default=system]\
69 default system delay is 3*hopsize/samplerate")
70 parser.add_option("-C","--dcthreshold",
72 action="store", dest="dcthreshold", default=1.,
73 help="onset peak picking DC component [default=1.]")
74 parser.add_option("-L","--localmin",
75 action="store_true", dest="localmin", default=False,
76 help="use local minima after peak detection")
77 parser.add_option("-d","--derivate",
78 action="store_true", dest="derivate", default=False,
79 help="derivate onset detection function")
80 parser.add_option("-z","--zerocross",
82 action="store", dest="zerothres", default=0.008,
83 help="zero-crossing threshold for slicing [default=0.00008]")
87 parser.add_option("-p","--plot",
88 action="store_true", dest="plot", default=False,
90 parser.add_option("-x","--xsize",
92 action="store", dest="xsize", default=1.,
93 type='float', help="define xsize for plot")
94 parser.add_option("-y","--ysize",
96 action="store", dest="ysize", default=1.,
97 type='float', help="define ysize for plot")
98 parser.add_option("-f","--function",
99 action="store_true", dest="func", default=False,
100 help="print detection function")
101 parser.add_option("-n","--no-onsets",
102 action="store_true", dest="nplot", default=False,
103 help="do not plot detected onsets")
104 parser.add_option("-O","--outplot",
105 metavar = "<output_image>",
106 action="store", dest="outplot", default=None,
107 help="save plot to output.{ps,png}")
108 parser.add_option("-F","--spectrogram",
109 action="store_true", dest="spectro", default=False,
110 help="add spectrogram to the plot")
112 parser.add_option("-o","--output", type = str,
113 metavar = "<outputdir>",
114 action="store", dest="output_directory", default=None,
115 help="specify path where slices of the original file should be created")
116 parser.add_option("--cut-until-nsamples", type = int,
117 metavar = "<samples>",
118 action = "store", dest = "cut_until_nsamples", default = None,
119 help="how many extra samples should be added at the end of each slice")
120 parser.add_option("--cut-until-nslices", type = int,
121 metavar = "<slices>",
122 action = "store", dest = "cut_until_nslices", default = None,
123 help="how many extra slices should be added at the end of each slice")
125 parser.add_option("-v","--verbose",
126 action="store_true", dest="verbose", default=True,
127 help="make lots of noise [default]")
128 parser.add_option("-q","--quiet",
129 action="store_false", dest="verbose", default=True,
131 (options, args) = parser.parse_args()
132 if not options.source_file:
135 options.source_file = args[0]
137 print "no file name given\n", usage
141 if __name__ == '__main__':
142 options, args = parse_args()
144 hopsize = options.hopsize
145 bufsize = options.bufsize
146 samplerate = options.samplerate
147 source_file = options.source_file
149 from aubio import onset, tempo, source, sink
151 s = source(source_file, samplerate, hopsize)
152 if samplerate == 0: samplerate = s.get_samplerate()
155 o = tempo(options.onset_method, bufsize, hopsize)
157 o = onset(options.onset_method, bufsize, hopsize)
159 if options.minioi.endswith('ms'):
160 o.set_minioi_ms(int(options.minioi[:-2]))
161 elif options.minioi.endswith('s'):
162 o.set_minioi_s(int(options.minioi[:-1]))
164 o.set_minioi(int(options.minioi))
165 o.set_threshold(options.threshold)
173 timestamps.append (o.get_last())
174 if options.verbose: print "%.4f" % o.get_last_s()
176 if read < hopsize: break
179 nstamps = len(timestamps)
180 duration = float (total_frames) / float(samplerate)
181 info = 'found %(nstamps)d timestamps in %(source_file)s' % locals()
182 info += ' (total %(duration).2fs at %(samplerate)dHz)\n' % locals()
183 sys.stderr.write(info)
186 if options.cut and nstamps > 0:
187 # generate output files
188 from aubio.slicing import slice_source_at_stamps
189 timestamps_end = None
190 if options.cut_until_nslices and options.cut_until_nsamples:
191 print "warning: using cut_until_nslices, but cut_until_nsamples is set"
192 if options.cut_until_nsamples:
193 timestamps_end = [t + options.cut_until_nsamples for t in timestamps[1:]]
194 timestamps_end += [ 1e120 ]
195 if options.cut_until_nslices:
196 timestamps_end = [t for t in timestamps[1 + options.cut_until_nslices:]]
197 timestamps_end += [ 1e120 ] * (options.cut_until_nslices + 1)
198 slice_source_at_stamps(source_file, timestamps, timestamps_end = timestamps_end,
199 output_dir = options.output_directory,
200 samplerate = samplerate)
203 duration = float (total_frames) / float(samplerate)
204 info = 'created %(nstamps)d slices from %(source_file)s' % locals()
205 info += ' (total %(duration).2fs at %(samplerate)dHz)\n' % locals()
206 sys.stderr.write(info)