[PD] Pd + asterisk?

Hans-Christoph Steiner hans at eds.org
Mon Dec 3 07:22:21 CET 2007

I am also quite excited about this, I think it can provide some  
really interesting new ways of interacting with phones, possibilities  
for composition, or whatever else we can dream up.  I am really into  
the idea of live audio processing of phone calls then feeding back  
synthesized audio into the phone call.

On Dec 2, 2007, at 3:45 PM, Russell Bryant wrote:

> I've been looking at [streamin~]/[streamout~] a bit this weekend.   
> I am thinking
> of using that as an initial proof of concept to get audio from a  
> phone call in
> and out of Pd.  But, please yell at me if there is something else I  
> should start
> with.  In the end, I want to provide a couple of different things  
> in regards to
> phone audio.

I just had a thought about this, perhaps it would make more sense to  
make Asterisk use Jack (http://jackaudio.org/) as the interface for  
transferring audio to Pd.  It's a common standard, it runs on GNU/ 
Linux, Mac OS X, is alpha on Windows.  It would allow Asterisk to  
interface with a wide range of audio apps that support Jack.  AFAIK,  
you can dynamically allocate and deallocate jack "channels".  There  
is already some support for managing the jack channels in Pd, and I  
don't think it would be too hard to support.

So the idea would be that for each call that is sent to Pd, it would  
open up a jack channel and notify Pd about it.  The question there is  
whether Jack can support hundreds or thousands of channels.



There is no way to peace, peace is the way.       -A.J. Muste

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