[PD] Pd 20% idle CPU usage on MBP

[Mathieu Bouchard]

On Tue, 9 Nov 2010, chris clepper wrote:

> By default CoreAudio does a lot of processing on audio when using the 
> built-in outputs.  It used to mainly be limiting to keep the shitty 
> speakers from blowing, but it has expanded over time.  There is 
> obviously a way to tell CoreAudio to cut that out, but how that is done 
> via PortAudio is a question for the PA developers.

Why does it do that in the application instead of inside some daemon ? I 
mean, what if you run 3 sound apps at once, does it does the same 
transformation on three signals (or pairs of signals) before mixing them ?

(I ask because, if that transformation is all linear, it's a waste)

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| Mathieu Bouchard ---- tél: +1.514.383.3801 ---- Villeray, Montréal, QC