[Sndobj-devel] Python SNdIO /Core Audio SetSr

[Edward H. <ed....@gm...>]

Hi
I've been tinkering with PySndObj on the Mac .
BTW it built out of the box for python 2.5 with the MacPython
framework and appropriate build switches to build the python wrapper.
The examples work OK as does the
I have now got  to the point where I'm able to read an AIF file and
providing it's a PCM file get it to play back OK apart from when the
sampling rate is not the default 44100.
In the case in question it is 22050 but it plays back as if 44100.
(Thanks BTW to the wav file example post)
I have tried the commented options shown in the code below, I'm new to
the API so I'm not
sure if this is a bug or I'm not setting the sampling rate in the
right place. So suggestions welcomed. The example file is in the
/Developer/Examples/Java/Sound source tree.

import sndobj
fn = '22-new.aif'
#fn = 'sound.aif'
af = sndobj.SndAiff(fn,sndobj.READ,2)
sr = af.GetSr()
vs = af.GetVectorSize()
print sr,vs
T1 = sndobj.SndThread()
sndin = sndobj.SndIn(af,1)
outp = sndobj.SndCoreAudio()
aif1 = sndobj.SndIn(af,1)
#aif1 = sndobj.SndIn(af,1,vs,sr)
#aif1.SetSr(sr)
aif2 = sndobj.SndIn(af,2)
#aif2 = sndobj.SndIn(af,2, vs, sr)
#aif2.SetSr(sr)
outp.SetOutput(1,aif1)
outp.SetOutput(2,aif2)
T1.AddObj(af,sndobj.SNDIO_IN)
T1.AddObj(aif1)
T1.AddObj(aif2)
T1.AddObj(outp,sndobj.SNDIO_OUT)
T1.ProcOn()
time.sleep(5)
T1.ProcOff()

TIA
Ed