Apple

On Sun, Dec 2, 2012 at 12:51 PM, Tim Kemp <email@hidden> wrote:

Hi,

My iOS synth has an AUGraph like this:

(Render callback on bus 0 input)->MultiChannelMixer->RemoteIO

(There will be a file player unit also going in to the mixer.)

The render callback gets samples in realtime from the synth engine as the user plays. I now want to record the generated sound to disk. What's the best way to hook this up? I am writing generated samples to a ring buffer already; I just need something to take them and put them in a file. Obviously this is a low priority process, so I'm not sure that I should be doing it within the render callback. (I also don't see anywhere to add a recording AU into the AUGraph; I am targeting iOS 5.0+ so I don't have a matrix mixer, which is what I originally thought of.) Should I add a render notify to the RemoteIO unit?

Thanks,

Tim

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References:
	>How to capture audio generated by a render callback, iOS (From: Tim Kemp <email@hidden>)
	>Re: How to capture audio generated by a render callback, iOS (From: Gregory Wieber <email@hidden>)