ref: deb3d651dd143c0b868883af204adafa651bc9bd
parent: f36277cc5c710a854f2f299e604b0187a5ed5f7a
author: Paul Brossier <piem@piem.org>
date: Tue Feb 12 17:58:38 EST 2013
demos/aubiocut: start moving aubiocut to new python
--- a/python.old/aubiocut
+++ /dev/null
@@ -1,156 +1,0 @@
-#! /usr/bin/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="filename",
- help="input sound file")
- parser.add_option("-m","--mode", - action="store", dest="mode", default='dual',
- help="onset detection mode [default=dual] \
- complexdomain|hfc|phase|specdiff|energy|kl|mkl|dual")
- parser.add_option("-B","--bufsize",- action="store", dest="bufsize", default=512,
- help="buffer size [default=512]")
- parser.add_option("-H","--hopsize",- action="store", dest="hopsize", default=256,
- help="overlap size [default=256]")
- parser.add_option("-t","--threshold",- action="store", dest="threshold", default=0.3,
- help="onset peak picking threshold [default=0.3]")
- parser.add_option("-C","--dcthreshold",- action="store", dest="dcthreshold", default=1.,
- help="onset peak picking DC component [default=1.]")
- parser.add_option("-s","--silence",- action="store", dest="silence", default=-70,
- help="silence threshold [default=-70]")
- parser.add_option("-M","--mintol",- action="store", dest="mintol", default=0.048,
- help="minimum inter onset interval [default=0.048]")
- parser.add_option("-D","--delay",- action="store", dest="delay",
- help="number of seconds to take back [default=system]\
- default system delay is 3*hopsize/samplerate")
- parser.add_option("-L","--localmin",- action="store_true", dest="localmin", default=False,
- help="use local minima after peak detection")
- 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","--derivate",- action="store_true", dest="derivate", default=False,
- help="derivate onset detection function")
- parser.add_option("-S","--silencecut",- action="store_true", dest="silencecut", default=False,
- help="outputs silence locations")
- parser.add_option("-z","--zerocross",- 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",- action="store", dest="xsize", default=1.,
- type='float', help="define xsize for plot")
- parser.add_option("-y","--ysize",- 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",- 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")
- # to be implemented
- parser.add_option("-b","--beat",- action="store_true", dest="beat", default=False,
- help="output beat locations")
- (options, args) = parser.parse_args()
- if not options.filename:
- print "no file name given\n", usage
- sys.exit(1)
- return options, args
-
-options, args = parse_args()
-
-filename = options.filename
-params = taskparams()
-params.hopsize = int(options.hopsize)
-params.bufsize = int(options.bufsize)
-params.threshold = float(options.threshold)
-params.dcthreshold = float(options.dcthreshold)
-params.zerothres = float(options.zerothres)
-params.silence = float(options.silence)
-params.mintol = float(options.mintol)
-params.verbose = options.verbose
-# default take back system delay
-if options.delay: params.delay = int(float(options.delay)/params.step)
-
-dotask = taskonset
-if options.beat:
- dotask = taskbeat
-elif options.silencecut:
- dotask = tasksilence
-elif options.plot or options.func:
- params.storefunc=True
-else:
- params.storefunc=False
-
-lonsets, lofunc = [], []
-wplot,oplots = [],[]
-modes = options.mode.split(',')-for i in range(len(modes)):
- params.onsetmode = modes[i]
- filetask = dotask(filename,params=params)
- onsets = filetask.compute_all()
-
- #lonsets.append(onsets)
- if not options.silencecut:
- ofunc = filetask.ofunc
- lofunc.append(ofunc)
-
- if options.plot:
- if options.beat:
- filetask.plot(oplots, onsets)
- else:
- filetask.plot(onsets, ofunc, wplot, oplots, nplot=options.nplot)
-
- if options.func:
- for i in ofunc:
- print i
-
-if options.outplot:
- extension = options.outplot.split('.')[-1] - outplot = '.'.join(options.outplot.split('.')[:-1])-else:
- extension,outplot = None,None
-if options.plot: filetask.plotplot(wplot, oplots, outplot=outplot, extension=extension,
- xsize=options.xsize,ysize=options.ysize,spectro=options.spectro)
-
-if options.cut:
- a = taskcut(filename,onsets,params=params)
- a.compute_all()
--- /dev/null
+++ b/python/demos/aubiocut
@@ -1,0 +1,155 @@
+#! /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
+
+ 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)
+
+
+ timestamps = []
+ block_read = 0
+ while True:
+ samples, read = s()
+ is_onset = o(samples)
+ if is_onset:
+ this_onset = (block_read * hopsize - is_onset[0])
+ if options.verbose:
+ print "%.4f" % ( this_onset / samplerate )
+ timestamps.append (this_onset)
+ 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)