"""
import sys
-#from aubio.task import *
-
-usage = "usage: %s [options] -i soundfile" % sys.argv[0]
-usage += "\n help: %s -h" % sys.argv[0]
def parse_args():
from optparse import OptionParser
+ usage = "usage: %s [options] -i soundfile" % sys.argv[0]
+ usage += "\n help: %s -h" % sys.argv[0]
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",
+ parser.add_option("-O","--onset-method",
action="store", dest="onset_method", default='default',
metavar = "<onset_method>",
help="onset detection method [default=default] \
help="silence threshold [default=-70]")
"""
# algorithm parameters
- parser.add_option("--samplerate",
+ parser.add_option("-r", "--samplerate",
metavar = "<freq>", type='int',
action="store", dest="samplerate", default=0,
help="samplerate at which the file should be represented")
metavar = "<size>", type='int',
action="store", dest="hopsize", default=256,
help="overlap size [default=256]")
- parser.add_option("-t","--threshold",
+ parser.add_option("-t","--onset-threshold",
metavar = "<value>", type="float",
action="store", dest="threshold", default=0.3,
help="onset peak picking threshold [default=0.3]")
action="store_true", dest="cut", default=False,
help="cut input sound file at detected labels \
best used with option -L")
+
+ # minioi
+ parser.add_option("-M","--minioi",
+ metavar = "<value>", type='string',
+ action="store", dest="minioi", default="12ms",
+ help="minimum inter onset interval [default=12ms]")
+
"""
parser.add_option("-D","--delay",
action = "store", dest = "delay", type = "float",
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")
action="store_true", dest="spectro", default=False,
help="add spectrogram to the plot")
"""
+ parser.add_option("-o","--output", type = str,
+ metavar = "<outputdir>",
+ action="store", dest="output_directory", default=None,
+ help="specify path where slices of the original file should be created")
+ parser.add_option("--cut-until-nsamples", type = int,
+ metavar = "<samples>",
+ action = "store", dest = "cut_until_nsamples", default = None,
+ help="how many extra samples should be added at the end of each slice")
+ parser.add_option("--cut-every-nslices", type = int,
+ metavar = "<samples>",
+ action = "store", dest = "cut_every_nslices", default = None,
+ help="how many slices should be groupped together at each cut")
+ parser.add_option("--cut-until-nslices", type = int,
+ metavar = "<slices>",
+ action = "store", dest = "cut_until_nslices", default = None,
+ help="how many extra slices should be added at the end of each slice")
+
parser.add_option("-v","--verbose",
action="store_true", dest="verbose", default=True,
help="make lots of noise [default]")
help="be quiet")
(options, args) = parser.parse_args()
if not options.source_file:
- print "no file name given\n", usage
- sys.exit(1)
+ import os.path
+ if len(args) == 1:
+ options.source_file = args[0]
+ else:
+ print ("no file name given\n" + usage)
+ sys.exit(1)
return options, args
if __name__ == '__main__':
o = tempo(options.onset_method, bufsize, hopsize)
else:
o = onset(options.onset_method, bufsize, hopsize)
+ if options.minioi:
+ if options.minioi.endswith('ms'):
+ o.set_minioi_ms(int(options.minioi[:-2]))
+ elif options.minioi.endswith('s'):
+ o.set_minioi_s(int(options.minioi[:-1]))
+ else:
+ o.set_minioi(int(options.minioi))
o.set_threshold(options.threshold)
timestamps = []
samples, read = s()
if o(samples):
timestamps.append (o.get_last())
- if options.verbose: print "%.4f" % o.get_last_s()
+ if options.verbose: print ("%.4f" % o.get_last_s())
total_frames += read
if read < hopsize: break
del s
# cutting pass
if options.cut and nstamps > 0:
- # generate output filenames
- import os
- source_base_name, source_ext = os.path.splitext(os.path.basename(source_file))
- def new_sink_name(source_base_name, timestamp):
- return source_base_name + '_%02.3f' % (timestamp) + '.wav'
- # reopen source file
- s = source(source_file, samplerate, hopsize)
- if samplerate == 0: samplerate = s.get_samplerate()
- # create first sink at 0
- g = sink(new_sink_name(source_base_name, 0.), samplerate)
- total_frames = 0
- # get next region
- next_onset = int(timestamps.pop(0))
- while True:
- vec, read = s()
- remaining = next_onset - total_frames
- if remaining <= read:
- # write remaining samples from current region
- g(vec[0:remaining], remaining)
- # close this file
- del g
- # create a new file for the new region
- g = sink(new_sink_name(source_base_name, next_onset / float(samplerate)), samplerate)
- # write the remaining samples in the new file
- g(vec[remaining:read], read - remaining)
- #print "new slice", total_frames_written, "+", remaining, "=", start_of_next_region
- if len(timestamps):
- next_onset = int(timestamps.pop(0))
- else:
- next_onset = 1e120
- else:
- g(vec[0:read], read)
- total_frames += read
- if read < hopsize: break
+ # generate output files
+ from aubio.slicing import slice_source_at_stamps
+ timestamps_end = None
+ if options.cut_every_nslices:
+ timestamps = timestamps[::options.cut_every_nslices]
+ nstamps = len(timestamps)
+ if options.cut_until_nslices and options.cut_until_nsamples:
+ print ("warning: using cut_until_nslices, but cut_until_nsamples is set")
+ if options.cut_until_nsamples:
+ timestamps_end = [t + options.cut_until_nsamples for t in timestamps[1:]]
+ timestamps_end += [ 1e120 ]
+ if options.cut_until_nslices:
+ timestamps_end = [t for t in timestamps[1 + options.cut_until_nslices:]]
+ timestamps_end += [ 1e120 ] * (options.cut_until_nslices + 1)
+ slice_source_at_stamps(source_file, timestamps, timestamps_end = timestamps_end,
+ output_dir = options.output_directory,
+ samplerate = samplerate)
# print some info
duration = float (total_frames) / float(samplerate)