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Re: Differences between iPhone and Desktop Audio
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Re: Differences between iPhone and Desktop Audio


  • Subject: Re: Differences between iPhone and Desktop Audio
  • From: Doug Wyatt <email@hidden>
  • Date: Fri, 22 May 2009 14:36:21 -0700


On May 22, 2009, at 12:39 , Peter Castine wrote:
- Can one use the Audio Component Services on desktop Mac OS, or do I need to re-write all of the calls to use the QT Component Manager?

This API does not exist in MacOSX 10.5.x and earlier.

- I think the AudioSession API is irrelevant for desktop Mac OS and I can just #ifdef around (or comment out) any calls to this API. Or am I missing something/do I need to substitute calls from some desktop API?

This API does not exist in any version of the desktop OS and has no parallel there.


- The app does FFT processing and the iPhone veresion uses some code the aurioTouch sample code (at least, I think this is where the FFT code came from). What I've read (and understood) of the code so far seems to be target-agnostic but, again, I ask if I'm missing any modifications that need to be made?

I'm not familiar with that code.

The only thing I can think of to look out for is that there is no support for fixed point formats like 8.24 on the desktop. Be sure to specify your formats correctly and consistently with what your code produces and expects.

- Audio Queue Services--identical or are there differences that one needs to be aware of?

Pretty much the same.

HTH,
Doug

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 >Differences between iPhone and Desktop Audio (From: Peter Castine <email@hidden>)

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