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from Carbon.Sound import *
from Carbon import Snd
import aifc, audioop
fn = 'f:just samples:2ndbeat.aif'
af = aifc.open(fn, 'r')
print(af.getparams())
print('nframes =', af.getnframes())
print('nchannels =', af.getnchannels())
print('framerate =', af.getframerate())
nframes = min(af.getnframes(), 100000)
frames = af.readframes(nframes)
print('len(frames) =', len(frames))
print(repr(frames[:100]))
frames = audioop.add(frames, '\x80'*len(frames), 1)
print(repr(frames[:100]))
import struct
header1 = struct.pack('llhhllbbl',
0,
af.getnchannels(),
af.getframerate(),0,
0,
0,
0xFF,
60,
nframes)
print(repr(header1))
header2 = struct.pack('llhlll', 0, 0, 0, 0, 0, 0)
header3 = struct.pack('hhlll',
af.getsampwidth()*8,
0,
0,
0,
0)
print(repr(header3))
header = header1 + header2 + header3
buffer = header + frames
chan = Snd.SndNewChannel(5,0x00C0)
Snd.SndDoCommand(chan, (bufferCmd, 0, buffer), 0)
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