Re: SetParameter
Re: SetParameter
- Subject: Re: SetParameter
- From: "Sophia Poirier [dfx]" <email@hidden>
- Date: Fri, 21 Sep 2007 00:07:44 -0400
What in that document leads you to believe that
AUEffectBase::SetParameter() is supposed to notify listeners? I
don't see anything that says anything like that, but maybe I'm not
catching something in there.
At any rate, what Eric told you and you've found are correct: that
AUEffectBase::SetParameter() will not post notification.
AUParameterSet() will (in addition to setting the value for the
parameter), or alternately you can use AUParameterListenerNotify() to
only post a change notification without setting a value.
Sophia
On Sep 19, 2007, at 10:19 AM, Paul Tapper wrote:
Thanks for the help.
I am calling AUEffectBase::SetParameter(paramID, value); which the
Audio Unit Programming Guide seems to suggest would then notify the
listeners (which would presumably include the host - see http://
developer.apple.com/documentation/MusicAudio/Conceptual/
AudioUnitProgrammingGuide/index.html?http://developer.apple.com/
documentation/MusicAudio/Conceptual/AudioUnitProgrammingGuide/
TheAudioUnit/chapter_4_section_4.html)
But, for me, AUEffectBase::SetParameter just seems to call
AUElement::SetParameter which doesn't seem to feed through into
AUParameterSet anywhere. Maybe I'm just using this wrong somehow.
Paul
Use AUParameterSet to set an AudioUnit parameter value and notify
listeners.
------------------------------------------------------------------
Eric Eizenman
BIAS Inc., Audio Software Development
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