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Re: Trouble recording using the AUHAL unit.

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Re: Trouble recording using the AUHAL unit.

Subject: Re: Trouble recording using the AUHAL unit.
From: Paul Davis <email@hidden>
Date: Mon, 11 Jan 2016 07:36:55 -0500

On Mon, Jan 11, 2016 at 2:08 AM, Alexander Bollbach <email@hidden> wrote:

I am trying to record small chunks of PCM for this beat making app I'm writing and so I figured it would be easy enough to just do AudioFileWriteBytes in this callback and multiply the number of frame with how many bytes per frame and just write it but the file winds up being a garbled mess.

You cannot do file i/o from a render callback or anywhere else in the realtime audio thread(s).

Please read this, which isn't about audiounits but is about realtime audio programming.

http://www.rossbencina.com/code/real-time-audio-programming-101-time-waits-for-nothing

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