Re: bus count and channel info confusion
Re: bus count and channel info confusion
- Subject: Re: bus count and channel info confusion
- From: Stefan Gretscher <email@hidden>
- Date: Tue, 20 Jul 2004 18:45:15 +0200
Am 17.07.2004 um 19:02 schrieb Chris Reed:
Most plug-ins I am aware of implement multi-outs by providing
ChannelConfigs like {0,8} with an output bus count of 8 to describe
4 stereo outs.
Yeah, that is totally incorrect, too. This, I think, was done by some
AUs unfortunately to get multi-bus behavior from Logic when Logic was
not supporting multi-bus AUs correctly (I'm not sure if this is still
the case or not).
That's right. AFAIK, this started with Art Gillespie (in pHATmatik Pro)
and me (in Ritmo) trying to find a solution to multiple outs that
worked with Logic. Another way to view it is that this comes from VST
land. Which of course is why Logic does (or did?) it this way.
Are you sure you needed this for Logic?
I just checked this with our own EXSP24 AU and it seemed to work ok
in Logic 6.0.1 and 6.4.2 regardless of whether it (incorrectly) reported
8 outputs for 8 busses or (correctly) 8 outputs for 1 bus. Thus, I
believe
that nobody should need the 8 outs on 8 busses described above.
AFAIK the issue with multiple outputs in older Logic versions is that
AUs can't use 2 outputs on 4 busses but have to use 8 outputs on
1 bus instead, because early Logic versions used the first bus only
and ignored all others.
Future versions of Logic will support and preferably use the standard
way of 2 outputs on 4 busses, but will additionally try the old 8 outs
on 1 bus if an AU doesn't support the standard 2 on 4 config.
This way, AUs that work with both 2 on 4 and 8 on 1 should be
compatible with older and upcoming Logic versions.
Kind regards,
Stefan Gretscher
plug-in development & 3rd party plug-in support
Emagic Soft- & Hardware GmbH
_______________________________________________
coreaudio-api mailing list | email@hidden
Help/Unsubscribe/Archives:
http://www.lists.apple.com/mailman/listinfo/coreaudio-api
Do not post admin requests to the list. They will be ignored.