Apple

Hi,

I'm using this code for sending parameter changes:

AudioUnitEvent e;
    memset(&e, 0, sizeof(AudioUnitEvent));
    e.mEventType = type;
    e.mArgument.mParameter.mAudioUnit = ci;
    e.mArgument.mParameter.mParameterID = idx;
    e.mArgument.mParameter.mScope = kAudioUnitScope_Global;
    e.mArgument.mParameter.mElement = 0;
    AUEventListenerNotify(0, 0, &e);

First with kAudioUnitEvent_BeginParameterChangeGesture, then kAudioUnitEvent_ParameterValueChange and finally kAudioUnitEvent_EndParameterChangeGesture.

This works, but when recording automation, Logic starts sending back AUBase::SetParameter with quite weird values - they are weirdly rounded and delayed. I usually send a few values say 0.9231, 0.9014, 0.9003, 0.8995... and then suddenly receive AUBase::SetParameter with 0.9300. Even worse is that Logic correcly records my values, but then records this creepy 0.9300. What am I doing wrong?

Thanks!

Vojtech

References:
	>Weird Logic behaviour when sending parameter changes for automation (From: Vojtěch Meluzín <email@hidden>)