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")
58 parser.add_option("-D","--delay",
59 action = "store", dest = "delay", type = "float",
60 metavar = "<seconds>", default=0,
61 help="number of seconds to take back [default=system]\
62 default system delay is 3*hopsize/samplerate")
63 parser.add_option("-C","--dcthreshold",
65 action="store", dest="dcthreshold", default=1.,
66 help="onset peak picking DC component [default=1.]")
67 parser.add_option("-M","--mintol",
69 action="store", dest="mintol", default=0.048,
70 help="minimum inter onset interval [default=0.048]")
71 parser.add_option("-L","--localmin",
72 action="store_true", dest="localmin", default=False,
73 help="use local minima after peak detection")
74 parser.add_option("-d","--derivate",
75 action="store_true", dest="derivate", default=False,
76 help="derivate onset detection function")
77 parser.add_option("-z","--zerocross",
79 action="store", dest="zerothres", default=0.008,
80 help="zero-crossing threshold for slicing [default=0.00008]")
84 parser.add_option("-p","--plot",
85 action="store_true", dest="plot", default=False,
87 parser.add_option("-x","--xsize",
89 action="store", dest="xsize", default=1.,
90 type='float', help="define xsize for plot")
91 parser.add_option("-y","--ysize",
93 action="store", dest="ysize", default=1.,
94 type='float', help="define ysize for plot")
95 parser.add_option("-f","--function",
96 action="store_true", dest="func", default=False,
97 help="print detection function")
98 parser.add_option("-n","--no-onsets",
99 action="store_true", dest="nplot", default=False,
100 help="do not plot detected onsets")
101 parser.add_option("-O","--outplot",
102 metavar = "<output_image>",
103 action="store", dest="outplot", default=None,
104 help="save plot to output.{ps,png}")
105 parser.add_option("-F","--spectrogram",
106 action="store_true", dest="spectro", default=False,
107 help="add spectrogram to the plot")
109 parser.add_option("-v","--verbose",
110 action="store_true", dest="verbose", default=True,
111 help="make lots of noise [default]")
112 parser.add_option("-q","--quiet",
113 action="store_false", dest="verbose", default=True,
115 (options, args) = parser.parse_args()
116 if not options.source_file:
119 options.source_file = args[0]
121 print "no file name given\n", usage
125 if __name__ == '__main__':
126 options, args = parse_args()
128 hopsize = options.hopsize
129 bufsize = options.bufsize
130 samplerate = options.samplerate
131 source_file = options.source_file
133 from aubio import onset, tempo, source, sink
135 s = source(source_file, samplerate, hopsize)
136 if samplerate == 0: samplerate = s.get_samplerate()
139 o = tempo(options.onset_method, bufsize, hopsize)
141 o = onset(options.onset_method, bufsize, hopsize)
142 o.set_threshold(options.threshold)
150 timestamps.append (o.get_last())
151 if options.verbose: print "%.4f" % o.get_last_s()
153 if read < hopsize: break
156 nstamps = len(timestamps)
157 duration = float (total_frames) / float(samplerate)
158 info = 'found %(nstamps)d timestamps in %(source_file)s' % locals()
159 info += ' (total %(duration).2fs at %(samplerate)dHz)\n' % locals()
160 sys.stderr.write(info)
163 if options.cut and nstamps > 0:
164 # generate output filenames
166 source_base_name, source_ext = os.path.splitext(os.path.basename(source_file))
167 def new_sink_name(source_base_name, timestamp):
168 return source_base_name + '_%02.3f' % (timestamp) + '.wav'
170 s = source(source_file, samplerate, hopsize)
171 if samplerate == 0: samplerate = s.get_samplerate()
172 # create first sink at 0
173 g = sink(new_sink_name(source_base_name, 0.), samplerate)
176 next_onset = int(timestamps.pop(0))
179 remaining = next_onset - total_frames
180 if remaining <= read:
181 # write remaining samples from current region
182 g(vec[0:remaining], remaining)
185 # create a new file for the new region
186 g = sink(new_sink_name(source_base_name, next_onset / float(samplerate)), samplerate)
187 # write the remaining samples in the new file
188 g(vec[remaining:read], read - remaining)
189 #print "new slice", total_frames_written, "+", remaining, "=", start_of_next_region
191 next_onset = int(timestamps.pop(0))
197 if read < hopsize: break
200 duration = float (total_frames) / float(samplerate)
201 info = 'created %(nstamps)d slices from %(source_file)s' % locals()
202 info += ' (total %(duration).2fs at %(samplerate)dHz)\n' % locals()
203 sys.stderr.write(info)