ref: 3043081e687361cd891ee289cfddea0974b6173f
dir: /python/aubiocut/
#! /usr/bin/python
""" this file was written by Paul Brossier
it is released under the GNU/GPL license.
"""
import sys
from aubio.tasks 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=0.650,
help="onset peak picking threshold [default=0.650]")
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("-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="plot only detection functions")
parser.add_option("-O","--outplot",
action="store", dest="outplot", default=None,
help="save plot to output.{ps,png}")
parser.add_option("-v","--verbose",
action="store_true", dest="verbose", default=False,
help="make lots of noise [default]")
parser.add_option("-q","--quiet",
action="store_false", dest="verbose", default=False,
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: filetask.plot(onsets, ofunc, wplot, oplots, nplot=options.nplot)
if options.func:
for i in ofunc:
print i
if options.plot: filetask.plotplot(wplot, oplots, outplot=options.outplot)
if options.cut:
a = taskcut(filename,onsets,params=params)
a.compute_all()