--- /dev/null
+#! /usr/bin/env python
+
+""" this file was written by Paul Brossier
+ it is released under the GNU/GPL license.
+"""
+
+import sys
+#from aubio.task import *
+
+usage = "usage: %s [options] -i soundfile" % sys.argv[0]
+
+def parse_args():
+ from optparse import OptionParser
+ parser = OptionParser(usage=usage)
+ parser.add_option("-i", "--input", action = "store", dest = "source_file",
+ help="input sound file to analyse", metavar = "<source_file>")
+ parser.add_option("-m","--method",
+ action="store", dest="onset_method", default='default',
+ metavar = "<onset_method>",
+ help="onset detection method [default=default] \
+ complexdomain|hfc|phase|specdiff|energy|kl|mkl")
+ # cutting methods
+ """
+ parser.add_option("-b","--beat",
+ action="store_true", dest="beat", default=False,
+ help="use beat locations")
+ parser.add_option("-S","--silencecut",
+ action="store_true", dest="silencecut", default=False,
+ help="use silence locations")
+ parser.add_option("-s","--silence",
+ metavar = "<value>",
+ action="store", dest="silence", default=-70,
+ help="silence threshold [default=-70]")
+ """
+ # algorithm parameters
+ parser.add_option("--samplerate",
+ metavar = "<freq>", type='int',
+ action="store", dest="samplerate", default=0,
+ help="samplerate at which the file should be represented")
+ parser.add_option("-B","--bufsize",
+ action="store", dest="bufsize", default=512,
+ metavar = "<size>",
+ help="buffer size [default=512]")
+ parser.add_option("-H","--hopsize",
+ metavar = "<size>",
+ action="store", dest="hopsize", default=256,
+ help="overlap size [default=256]")
+ parser.add_option("-t","--threshold",
+ metavar = "<value>", type="float",
+ action="store", dest="threshold", default=0.3,
+ help="onset peak picking threshold [default=0.3]")
+ parser.add_option("-c","--cut",
+ action="store_true", dest="cut", default=False,
+ help="cut input sound file at detected labels \
+ best used with option -L")
+ """
+ parser.add_option("-D","--delay",
+ action = "store", dest = "delay", type = "float",
+ metavar = "<seconds>", default=0,
+ help="number of seconds to take back [default=system]\
+ default system delay is 3*hopsize/samplerate")
+ parser.add_option("-C","--dcthreshold",
+ metavar = "<value>",
+ action="store", dest="dcthreshold", default=1.,
+ help="onset peak picking DC component [default=1.]")
+ parser.add_option("-M","--mintol",
+ metavar = "<value>",
+ action="store", dest="mintol", default=0.048,
+ help="minimum inter onset interval [default=0.048]")
+ parser.add_option("-L","--localmin",
+ action="store_true", dest="localmin", default=False,
+ help="use local minima after peak detection")
+ parser.add_option("-d","--derivate",
+ action="store_true", dest="derivate", default=False,
+ help="derivate onset detection function")
+ parser.add_option("-z","--zerocross",
+ metavar = "<value>",
+ action="store", dest="zerothres", default=0.008,
+ help="zero-crossing threshold for slicing [default=0.00008]")
+ """
+ # plotting functions
+ """
+ parser.add_option("-p","--plot",
+ action="store_true", dest="plot", default=False,
+ help="draw plot")
+ parser.add_option("-x","--xsize",
+ metavar = "<size>",
+ action="store", dest="xsize", default=1.,
+ type='float', help="define xsize for plot")
+ parser.add_option("-y","--ysize",
+ metavar = "<size>",
+ action="store", dest="ysize", default=1.,
+ type='float', help="define ysize for plot")
+ parser.add_option("-f","--function",
+ action="store_true", dest="func", default=False,
+ help="print detection function")
+ parser.add_option("-n","--no-onsets",
+ action="store_true", dest="nplot", default=False,
+ help="do not plot detected onsets")
+ parser.add_option("-O","--outplot",
+ metavar = "<output_image>",
+ action="store", dest="outplot", default=None,
+ help="save plot to output.{ps,png}")
+ parser.add_option("-F","--spectrogram",
+ action="store_true", dest="spectro", default=False,
+ help="add spectrogram to the plot")
+ """
+ parser.add_option("-v","--verbose",
+ action="store_true", dest="verbose", default=True,
+ help="make lots of noise [default]")
+ parser.add_option("-q","--quiet",
+ action="store_false", dest="verbose", default=True,
+ help="be quiet")
+ (options, args) = parser.parse_args()
+ if not options.source_file:
+ print "no file name given\n", usage
+ sys.exit(1)
+ return options, args
+
+if __name__ == '__main__':
+ options, args = parse_args()
+
+ hopsize = options.hopsize
+ bufsize = options.bufsize
+ samplerate = options.samplerate
+ source_file = options.source_file
+
+ from aubio import onset, source, sink
+
+ s = source(source_file, samplerate, hopsize)
+ if samplerate == 0: samplerate = s.get_samplerate()
+
+ o = onset(options.onset_method, bufsize, hopsize)
+ o.set_threshold(options.threshold)
+
+ slice_number = 0
+ #if options.cut:
+ this_slice = sink('/tmp/t-%02d.wav' % slice_number, samplerate)
+
+ timestamps = []
+ block_read = 0
+ while True:
+ samples, read = s()
+ #ring_buffer = hstack([ring_buffer, samples])
+ is_onset = o(samples)
+ if is_onset:
+ this_onset = (block_read - 4. + is_onset[0]) * hopsize
+ if options.verbose:
+ print "%.4f" % ( this_onset / samplerate )
+ timestamps.append (this_onset)
+ del this_slice
+ slice_number += 1
+ this_slice = sink('/tmp/t-%02d.wav' % slice_number, samplerate)
+ this_slice(samples, read)
+ block_read += 1
+ if read < hopsize: break
+
+ # print some info
+ duration = float ( block_read * hopsize + read ) / samplerate
+ nstamps = len(timestamps)
+ info = 'found %(nstamps)d timestamps in %(source_file)s' % locals()
+ info += ' (read %(duration).2fs at %(samplerate)dHz)\n' % locals()
+ sys.stderr.write(info)
projects / aubio.git / commitdiff