gistfile1.py

# fadefactor is a short method which returns a float based on the one passed in
# audio is a bytearray
for i in range(fadeinframes):
	offset = i * framesize
	frame = str(audio[offset:offset + framesize])
	value = struct.unpack(frameformat, frame)
	audio[offset:offset + framesize] = struct.pack(frameformat,
			*(fadefactor(float(i) / fadeinframes) * v for v in value))