Audio Unit with variable Latency (user-modifyable)
Audio Unit with variable Latency (user-modifyable)
- Subject: Audio Unit with variable Latency (user-modifyable)
- From: "Christian Buchner" <email@hidden>
- Date: Thu, 7 Jul 2005 05:14:06 +0200
Hi there.
I am in the process of creating an audio unit - in fact a MusicDevice
- mainly for use in GarageBand. I have come up with the idea of adding
a user-adjustable latency setting. This is to counter a delay induced
by sending MIDI data and the audio capturing process. This ensures a
good audio synchronization during playback (the MusicDevice controls
external hardware through MIDI and feeds back the audio).
I tried to return the current latency value in my GetLatency()
function of the audio unit - but GarageBand keeps using the initial
value that was reported after loading the AU while it was still
operating on default values - i.e. zero latency.
Is there a clean way to tell GarageBand - or any other AU host application
- to re-evaluate a modified latency value and to adjust its audio processing
accordingly?
Christian
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