AUEventListener doesn't make decisions about parameters being changed or not - if the caller is telling us that both X and Y parameter is being changed, you should be receiving notifications for both - this sounds like a bug in Live - they aren't calling the event listener, just calling AudioUnitSetParameter - you should contact them
Bill
On 15/03/2007, at 8:04 AM, Chad Wagner wrote:
Hopefully this is an easy question, but it's been giving me some problems, so any help would be appreciated.
In my AU's carbon view, I set up an event listener with AUEventListenerCreate, using a notification interval and granularity of 0.1 sec. I'm testing it in Ableton Live, which has a generic 2D control that can be mapped to any 2 parameters of the AU. When using this, both parameter changes are received correctly by the AU, but my AUEventListenerProc in the GUI is only called once for one of the parameters, i.e. if both X and Y values change, I am only notified of X. (I am notified of Y only if there was no change in X.) I assume this has to do with the granularity setting, so I tried reducing that (which isn't really what I want) and also tried creating a different listener for each parameter (though still using the same callback proc), but still with the same results.
I'd like the notification interval and granularity to stay at 0.1 sec, since I really don't care about changes that come faster than that, but I do need to track each parameter independently and be notified of the current values. What is the correct way to do this?
Thanks,
Chad
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