ref: 427be719df2cdf8df4114345713be1926a63d1b7
dir: /python/aubiopitch/
#!/usr/bin/python
""" this file was written by Paul Brossier
it is released under the GNU/GPL license.
"""
import sys
from aubio.aubioclass 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="callback",
callback=check_pitch_mode, dest="mode",
default=aubio_pitch_mcomb,
help="pitch detection mode [default=mcomb] \
mcomb|yin|fcomb|schmitt")
parser.add_option("-B","--bufsize",
action="store", dest="bufsize", default=1024,
help="buffer size [default=1024]")
parser.add_option("-H","--hopsize",
action="store", dest="hopsize", default=512,
help="overlap size [default=512]")
parser.add_option("-t","--threshold",
action="store", dest="threshold", default=0.1,
help="pitch threshold (for yin) [default=0.1]")
parser.add_option("-s","--silence",
action="store", dest="silence", default=-70,
help="silence threshold [default=-70]")
parser.add_option("-D","--delay",
action="store", dest="delay",
help="number of seconds to take back [default=system]\
default system delay is 2*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")
# to be implemented
parser.add_option("-n","--note",
action="store_true", dest="note", default=False,
help="NOT IMPLEMENTED output notes")
# plotting functions
parser.add_option("-p","--plot",
action="store_true", dest="plot", default=False,
help="NOT IMPLEMENTED draw plot")
parser.add_option("-O","--outplot",
action="store", dest="outplot", default=None,
help="NOT IMPLEMENTED 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")
(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
samplerate = float(sndfile(filename).samplerate())
hopsize = int(options.hopsize)
bufsize = int(options.bufsize)
step = float(samplerate)/float(hopsize)
threshold = float(options.threshold)
silence = float(options.silence)
#mintol = float(options.mintol)*step
# default take back system delay
if options.delay: delay = float(options.delay)
else: delay = 2./step
if options.note:
exit("not implemented yet")
else:
pitch = getpitch(filename, #threshold,silence,
mode=options.mode,
bufsize=bufsize,hopsize=hopsize)
## take back system delay
#if delay != 0:
# for i in range(len(onsets)):
# onsets[i] -= delay*step
#
## prune doubled
#if mintol > 0:
# last = -2*mintol
# newonsets = []
# for new in onsets:
# if (new - last > mintol):
# newonsets.append(new)
# last = new
# onsets = newonsets
# print times in second
if options.verbose:
for i in range(len(pitch)):
print "%f\t%f" % (i/step,pitch[i])
if options.plot:
from aubio.gnuplot import plot_pitch
plot_pitch(filename, pitch,
samplerate=samplerate, hopsize=hopsize, outplot=options.outplot)