Re: [Sndobj-devel] does SndJackIO needs fixing on intel Mac?

[sonify <so...@av...>]

OK here's the rub: This simple  python Jack- code  works on intel Mac =20=

OSX10.4.8:

> import sndobj
>
> tab =3D sndobj.HarmTable()
> osc =3D sndobj.Oscili(tab, 440, 16000)
> oput =3D sndobj.SndJackIO('sine1')
> oput.SetOutput(1, osc)
> thread =3D sndobj.SndThread()
> thread.AddObj(osc)
> thread.AddObj(oput, sndobj.SNDIO_OUT)


but
> oput =3D sndobj.SndJackIO('sine1' , 1, osc)

crackles audio through Jack then fails to play.


NB Jack has a special setup routine on intel Macs.
Form p12 of the Jack Manual
> The Intel-based Macs present the Built-in Audio device to software =20
> applications as two
> distinct half-duplex devices: an input device and an output device. =20=

> For proper
> functioning within Jack OS X on Intel Macs, these two devices must be
> aggregated into a single one, using the Mac=92s Aggregate Device =20
> Editor, which is
> housed within the Audio MIDI Setup application.

-David
On 28/01/2007, at 8:37 PM, Victor Lazzarini wrote:

> Looks correct, but I am afraid I have not
> tested Jack on OSX extensively. I assume your Jack
> server is up and running.
>
> I'll look into the Jack thing on Monday.
>
> Regards
>
> Victor
>
>>
>> Not sure if this is syntactically correct. Please check
>> it.
>>
>>> # PySndObj Jack example
>>> import sndobj
>>> import time
>>> tab =3D sndobj.HarmTable()
>>> osc =3D sndobj.Oscili(tab, 440, 16000)
>>> oput =3D sndobj.SndJackIO('sine')
>>> oput.SetOutput(1, osc)
>>>
>>> # then either
>>> thread =3D sndobj.SndThread()
>>> thread.AddObj(osc)
>>> thread.AddObj(oput, sndobj.SNDIO_OUT)
>>> thread.ProcOn()
>>> time.sleep(5)
>>> thread.ProcOff()




_____________________________
David Worrall: so...@av...