Apple

On 3 Dec 2012, at 16:48, Aran Mulholland wrote:

damn it, now I have to quote Pauls second email (which I should have read)

"ah silly me. it does all the hard work for you. that will teach me to reply before reading to even just the end of the received messages in the thread.

sorry for the noise. "

smile.

On Tue, Dec 4, 2012 at 8:31 AM, Tim Kemp <email@hidden> wrote:

Aran,

Your understanding is correct. See Paul's second email - he was a bit hasty :) You absolutely *can* use this from a render callback.

Tim

On 3 Dec 2012, at 16:08, Aran Mulholland wrote:

Just a question Paul

From the doco:

"The first time this function is called, allocations may be performed. You can call this function with 0 frames and a NULL buffer in a non-time-critical context to initialize the asynchronous mechanism. Once initialized, subsequent calls are very efficient and do not take locks. This technique may be used to write to a file from a realtime thread."

If it takes no locks and is "very efficient" why can't you use it in a render callback? From my understanding it does no disk IO, just puts the data in a ringbuffer for processing from another thread somewhere in its innards..

On Tue, Dec 4, 2012 at 6:54 AM, Paul Davis <email@hidden> wrote:

ExtAudioFileWriteAsync

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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>)
	>Re: How to capture audio generated by a render callback, iOS (From: Paul Davis <email@hidden>)
	>Re: How to capture audio generated by a render callback, iOS (From: Paul Davis <email@hidden>)
	>Re: How to capture audio generated by a render callback, iOS (From: Aran Mulholland <email@hidden>)
	>Re: 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: Aran Mulholland <email@hidden>)