Have you tried AVAudioFile?

> On Feb 13, 2018, at 12:59 PM, Arshia Cont <arshiac...@antescofo.com> wrote:
> 
> Hello list,
> 
> This is my first post here so sorry if this is already asked!
> 
> We have been using ExtAudioFileWriteAsync on iOS successfully to write two 
> PCM Audio Streams to disk. We have been getting reports from users nagging on 
> sudden audio drop outs on some [older] devices and during “performance”. We 
> managed finally to find the root of the problem to the thrown 
> kExtAudioFileError_AsyncWriteBufferOverflow exception which means (probably?) 
> that ExtAudioFileWriteAsync is not keeping the pace with the system writing 
> to disk.
> 
> So I believe we must use lower level calls here (?).
> 
> What would be an alternative for ExtAudioFileWriteAsync?

> 
> I have been looking at Audio Queue Services for months but 
> documentation/examples are so old that it keeps me away from it… or should we 
> dive in?
> 
> Thanks in advance,
> 
> 
> Arshia Cont
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