46 lines
1.2 KiB
Python
46 lines
1.2 KiB
Python
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)
|