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Re: Audio Units: calling SetParameter from within Process()
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Re: Audio Units: calling SetParameter from within Process()


  • Subject: Re: Audio Units: calling SetParameter from within Process()
  • From: William Stewart <email@hidden>
  • Date: Tue, 29 Aug 2006 12:06:07 -0700

Oh, just a note on this - it sounds like you will be calling this every render cycle, but the value is probably not going to change that often - so a simple check ("is this the same tempo value as last time") before calling the notify call will save some overhead (that is, only call the notify call if the value hasn't changed). It does this check as well, but its a simple enough check to make for you and as you are on the render thread, its a nice optimisation

Bill

On 29/08/2006, at 12:03 PM, William Stewart wrote:

Call the AUEventListenerNotify call

On 29/08/2006, at 7:36 AM, Artemiy Pavlov wrote:

Hello list!

Inside the Process() function, I have no problems accessing the parent Audio Unit's calls this way for example:

mAudioUnit-> CallHostBeatAndTempo ( &Beat, &Tempo )

What I'd like to do next is tell my plugin to update one of it's parameters with a new value, so that the slider one the GUI moves accordingly. I have a generic view (no custom GUI). I tried this:

mAudioUnit->SetParameter( kSomeParameter, SomeValue );

...but it won't work.

I'd really appreciate any hints!



Artemiy.
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  • Follow-Ups:
    • Re: Audio Units: calling SetParameter from within Process()
      • From: Jeremy Sagan <email@hidden>
References: 
 >Audio Units: calling SetParameter from within Process() (From: Artemiy Pavlov <email@hidden>)
 >Re: Audio Units: calling SetParameter from within Process() (From: William Stewart <email@hidden>)

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