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Re: How to get raw audio values?
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Re: How to get raw audio values?


  • Subject: Re: How to get raw audio values?
  • From: Robert Kukuchka <email@hidden>
  • Date: Thu, 10 Mar 2005 09:06:12 -0800

Hello,
IIRC the HAL reports all audio data as 32 bit floating point. You'd likely need to create a custom driver that would take the raw audio and publish it to user mode somehow. I suspect bypassing the HAL will attribute a performance penalty.
~Rob
On Mar 10, 2005, at 4:57 AM, lbland wrote:


hi-

I need to perform processing outside the Core Audio system. So, I need to read the raw audio signal bytes and work with that. Is there an example showing how to do that?

I haven't looked at all the code in Core Audio SDK v1.3.4, I'll probably figure it out sooner or later, but I thought if one of you threw me a bone then I could chew sooner. :-)

TIA!-

-lance

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 >How to get raw audio values? (From: lbland <email@hidden>)

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