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Re: AudioUnit Get/Set Parameter
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Re: AudioUnit Get/Set Parameter


  • Subject: Re: AudioUnit Get/Set Parameter
  • From: Bill Stewart <email@hidden>
  • Date: Thu, 06 Dec 2001 19:39:33 -0800

on 6/12/01 2:31 PM, David Shaffer wrote:

> What is the AudioUnitElement used for?
>
> The AudioUnitParameterID is one of the parameters from a list.. So, it
> is the parameter (such as volume/pan/etc..) But, I am not sure what the
> element is in this case.
>
> AudioUnitGetParameter(
> AudioUnit ci,
> AudioUnitParameterID inID,
> AudioUnitScope inScope,
> AudioUnitElement inElement,
> Float32 * outValue)
> FIVEWORDINLINE(0x2F3C, 0x0010, 0x0006, 0x7000, 0xA82A);

In the case of a mixer
ci==myMixerUnit
paramID for Pan
inScope == Input Scope
inElement == bus number -> ie. Which bus are you trying to get the parameter
value for...
outValue == theValue of the parameter specified by mix-bus number (elementID
and input-bus (scope)

Bill
> _______________________________________________
> coreaudio-api mailing list
> email@hidden
> http://www.lists.apple.com/mailman/listinfo/coreaudio-api


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References: 
 >AudioUnit Get/Set Parameter (From: David Shaffer <email@hidden>)

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