Re: How to pull audio from an AUGraph for bounces?
Re: How to pull audio from an AUGraph for bounces?
- Subject: Re: How to pull audio from an AUGraph for bounces?
- From: William Stewart <email@hidden>
- Date: Mon, 21 May 2007 14:55:27 -0700
The PlaySequence sample code (/Developer/Examples/CoreAudio/
SimpleSDK/) has an option to write a file and does exactly what you want
Bill
On 21/05/2007, at 12:24 PM, Daniel Oberhoff wrote:
Hi,
I am trying to find out how to play audio from an AUGraph into my
own sample buffers. It seems I always need an output unit at the
end of the graph, so for playback I get the default output unit.
But that way I never get so touch the rendered buffers. Now I would
like to make a "bounce" of the audio, i.e. record the output of the
graph into my own buffers, and I cannot find out how to do so. I
was wondering if maybe one of the available output units is set for
this. I see an "kAudioUnitSubType_GenericOutput" subtype defined in
AUComponent.h, but have no Idea how to use this. I also see the
RecordToAudioFile sample that sets an input callback to get the
data, but there it directly calls the render method on the input
unit, and I am not so sure if this is the way to do it, since the
graph should be responsible for pulling from the units.
Help appreciated,
Daniel Oberhoff
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