[PD] dropouts on mac os ...

[Hans-Christoph Steiner]

I do quite a bit of audio on my Powerbook 800.  Its not as good as  
linux, but its far from useless.  Most of the time, with audio  
processing, you actually need to have the realtime mode enabled.   
Otherwise the GUI and the audio process have the same priority,  
making dropouts much more likely.

There are problems with the realtime flag, but if you are just doing  
audio, then it works best with it on on Mac OS X.

The preference is a bit odd.  The option is "defeat real-time  
scheduling", so for basic audio work, leave it off.

.hc

On Apr 19, 2006, at 5:19 PM, derek holzer wrote:

> Hi Sciss,
>
> fact of the matter is that the Aqua Tcl/Tk GUI on OSX interferes  
> with audio processing in an entirely unacceptable way. When I want  
> to do serious PD audio work, I boot Gentoo PPC Linux. Quite a bit  
> of optimization for video/3d has been done for the OSX version of  
> PD,. This was mostly for GEM, as PDP and PiDiP remain quite  
> unoptimized. But audio doesn't seem to be a specialty/priority for  
> the developers right now. I base this on comments from James Tittle  
> and others when I brought this issue up before. I've also gotten  
> feedback from others on this list that PD+Audio+OSX is on the  
> border between crippled and useless in its current state.
>
> One suggestion which HC Steiner made (IIRC) is to compile PD  
> against a Fink or DarwinPorts X11 version of Tcl/Tk instead of the  
> Aqua one. This entails some makefile buggery which I haven't gotten  
> around to yet.
>
> Another suggestion is to make sure that the realtime priority flag  
> is disabled on OSX with the -nrt flag. This seems to be a  
> workaround in some cases, but not a solution to the problem.
>
> best,
> d.
>
> -- 
> derek holzer ::: http://www.umatic.nl
> ---Oblique Strategy # 82:
> "Honor thy error as a hidden intention"
>
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