Logic and AU instruments with side-chain
Logic and AU instruments with side-chain
- Subject: Logic and AU instruments with side-chain
- From: Floris Klinkert - FabFilter Software Instruments <email@hidden>
- Date: Wed, 17 Sep 2008 10:35:43 +0200
Hi,
At the moment, we are trying to create a stereo AU instrument plug-in
with a side-chain, but we are kind of puzzled on how to specify the
input/output configuration of our plug-in. After some testing, we have
learned the following:
1) A plug-in -only- displays a side-chain input dropdown list in its
plug-in window if it offers more than one input bus (regardless of it
being an effect plug-in or an instrument plug-in).
2) For effect plug-ins, Logic feeds the side-chain signal to the
second/last of the two input busses, as expected. For instrument
plug-ins, Logic feeds the side-chain signal to the first input bus and
doesn't use the second one at all...
Is this expected behaviour in Logic?
We've also did some testing in other hosts. Digital Performer 6 also
only shows a side-chain menu when we declare two inputs, but doesn't
route audio to any of them. AULab actually does what you would expect
most: if you declare two input busses... you can route audio to two
input busses.
Since hosts react in such a different way to an instrument with a
(side-chain) input, we're not sure what is the best way to implement this.
Has anyone tried making a AU instrument with side-chain before? Any hints?
Thanks!
Floris Klinkert
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