A quick script to split a sample-interlaced wav into two files, used for testing my Honors Project.

splitwav.py

from sys import argv
import wave

sound = wave.open(argv[1],"r")
one = wave.open("split_one.wav","w")
two = wave.open("split_two.wav","w")

data = sound.readframes(sound.getnframes())

one.setparams(sound.getparams())
two.setparams(sound.getparams())
one.setframerate(sound.getframerate()/2)
two.setframerate(sound.getframerate()/2)

dataone = ''
datatwo = ''
print "Splitting %d bytes..." % len(data)
for startpos in range(0, len(data), 4):
    #print "First sample: %s Second sample: %s" % (hex(ord(data[startpos])) + hex(ord(data[startpos+1])), hex(ord(data[startpos+2])) + hex(ord(data[startpos+3])))
    try:
        dataone += data[startpos]
        dataone += data[startpos+1]
        datatwo += data[startpos+2]
        datatwo += data[startpos+3]
    except IndexError:
        pass

print len(dataone)
print len(datatwo)
one.writeframes(dataone)
two.writeframes(datatwo)