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reverse a sound

# Reverse a sound
def reverseSound(sound):
  seconds = getLength(sound)/getSamplingRate(sound)
  reversed = makeEmptySound(int(seconds+1))

  # Start at the beginning of the destination sound and go forward
  destIndex = 1
  # Start at the end of the source sound and go backward
  for srcIndex in range(getLength(sound), 0, -1): # Three-argument range for increment
    srcSample = getSampleValueAt(sound, srcIndex)
    setSampleValueAt(reversed, destIndex, srcSample)
    destIndex = destIndex + 1

  # Reversed sound will start with up to 1 second of silence
  return reversed

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• Slides and Code- Spring 2008 last edited on 23 April 2008 at 11:00 am by lawn-128-61-23-153.lawn.gatech.edu