ref: 6ae3a77f49a78ea78a4dca71a42ac2da5768fa3d
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("-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("-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.zerothres = float(options.zerothres)
params.silence = float(options.silence)
params.mintol = float(options.mintol)
# default take back system delay
if options.delay: delay = float(options.delay)
else: delay = 3./params.step
lonsets, lofunc = [], []
modes = options.mode.split(',')
for i in range(len(modes)):
params.onsetmode = modes[i]
dotask = taskonset
if options.beat:
dotask = taskbeat
elif options.silencecut:
dotask = tasksilence
elif options.plot:
params.storefunc=True
else:
params.storefunc=False
filetask = dotask(filename,params=params)
onsets = filetask.compute_all()
if not options.silencecut:
ofunc = filetask.ofunc
#onsets, ofunc = getonsets(filename,threshold,silence,
# mode=mode[i],localmin=options.localmin,
# derivate=options.derivate,
# bufsize=bufsize,hopsize=hopsize,storefunc=True)
# take back system delay
if delay != 0:
for each in range(len(onsets)):
onsets[each] = onsets[each][0] - delay*params.step
# prune doubled
params.mintol *= params.step
if params.mintol > 0:
last = -2*params.mintol
newonsets = []
for new in onsets:
if (new - last > params.mintol):
newonsets.append(new)
last = new
onsets = newonsets
lonsets.append(onsets)
if not options.silencecut:
lofunc.append(ofunc)
# print times in second
if options.verbose:
#print modes[i]
for i in range(len(onsets)):
print onsets[i]*params.step
if options.plot:
filetask.plot(onsets, ofunc)
filetask.plotplot(outplot=options.outplot)
if options.cut:
a = taskcut(filename,onsets,params=params)
a.compute_all()