Yes Laurenzo, that script may be helpful--and-thanks in advance
Hart
Ok.. here it is. As I said it's especially non-refined so all the
filenames are hard-coded to audio.wav (the input file), cue (the cue
file), concat.wav (the output file). Also I only used it in the same dir
as the input audio file.
The 'cue' file is in the format start_time end_time both in hh:mm:ss
format separated by a space, one per line, so in the attached example
one two chunks of the input wave file from 00:10:05 to 00:10:35 and from
00:20:30 to 00:21:07, then these chunks will simply be concatenated into
a single file.
I made this on ubuntu 9.10 with the shipped version of sox.
All the best,
Lorenzo
import os
# these should really be provided from command lin
inFile = 'audio.wav'
cueFile = 'cue'
outFile = 'concat.wav'
f = open (cueFile,'r')
times = []
for l in f:
times.append (l.replace ('\n',''))
f.close ()
timeargs = []
counter = 0
for t in times:
couple = t.split (' ')
startCut = couple[0].split (':')
startCutSecs = int (startCut[0]) * 3600 + int (startCut[1]) * 60 + int (startCut[2])
endCut = couple[1].split (':')
endCutSecs = int (endCut[0]) * 3600 + int (endCut[1]) * 60 + int (endCut[2])
totalCutSecs = str (endCutSecs - startCutSecs)
if totalCutSecs < 0:
print 'WARNING: negative cut!'
d = {'start' : couple[0]}
d['cut'] = totalCutSecs
d['tempfile'] = 'chunk'+str (counter)+'.wav'
d['commandline'] = 'sox ' + inFile + ' ' + d['tempfile']+ ' trim ' + d['start'] + ' ' + d['cut']
timeargs.append (d)
counter += 1
print 'Processing file:',inFile
print 'Using cuelist in file',cueFile,'\n'
concatFiles = ''
for t in timeargs:
print 'Extracting from',t['start'],'for',t['cut'],'seconds'
print '-- saving to file',t['tempfile']
os.system (t['commandline'])
concatFiles += t['tempfile']+' '
print 'OK'
print 'Concatenating files and saving to:',outFile
os.system ('sox '+concatFiles+' '+outFile)
print 'OK'
print 'Cleaning up temp files...'
for t in timeargs:
os.remove (t['tempfile'])
print ' done.'
00:10:05 00:10:35
00:20:30 00:21:07
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