LE 7.1 and Multichannel audio units

Hi guys,
I had this issue playing midi files with a Multichannel Instrument.. I hope to explain my problem quite clear...
All volume and pan messages are detected by the master volume and pan in Logic instead of being used in the single part of the au instruments.
I use Hypersonic 2 to play midi files but Logic get the volume and pan messages
on thye main channel instead of redirecting them to the single part..
Is there anyone who can help me?
Thank You very much!
Fabio

In fact, Logic doesn't handle multichannel (multi-timbral) AU plugins correctly according to the AU standard, ie. MIDI volume and pan are not passed to the plugin. A simple workaround is to use multiple instances of the plugin. Or, if the plugin has multichannel audio output you may control these channels individually.
The issue has often been discussed on this and other forums. Unfortunately it's nowhere mentioned in Logic manuals or help files.
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