Re: Side chains in Logic
Re: Side chains in Logic
- Subject: Re: Side chains in Logic
- From: "Frederik Slijkerman" <email@hidden>
- Date: Fri, 22 Dec 2006 13:21:12 +0100
Hi Bill, Stefan,
Thanks for the responses! We thought it would be nice to have the plugin
automatically use the side chain instead of its regular input bus if it
isn't set to None in Logic. For now, we'll just add a switch to enable the
side chain bus.
Cheers,
Frederik Slijkerman
FabFilter
----- Original Message -----
From: "William Stewart" <email@hidden>
To: "Stefan Gretscher" <email@hidden>
Cc: <email@hidden>
Sent: Friday, 22 December 2006 4:40
Subject: Re: Side chains in Logic
On 21/12/2006, at 9:34 AM, Stefan Gretscher wrote:
Hi Floris,
IsActive() does return true because Logic sets the render callback in
the setup phase. It does so because changing the callbacks requires an
uninitialize/initalize cycle which could break playback if adjusting the
sidechain while in playback.
No it doesn't. There is a threading issue that you have to take care of
(you can't reconnect an AU while it is rendering on another thread), but
as long as the format is set correctly, then you could very easily just
add the callback when the side chain is requested.
Bill
I don't think there is a way for you to reliably get this setting from
Logic - why are you interested in this?
Best,
Stefan
Am 21.12.2006 um 13:17 schrieb Floris Klinkert - FabFilter Software
Instruments:
Hi all,
We're currently building a stereo AU effect plugin with a side chain.
Everything seems to work fine; the plug-in has two input busses and one
output bus, reports the correct channel info and passes AU Validation
as expected.
To check whether the second input put (the side chain) is actually
being used, we use IsActive():
if (HasInput(1)) {
sideChain = GetInput(1);
if (sideChain->IsActive()) {
result = theSideChain->PullInput(ioActionFlags, inTimeStamp, 1,
nFrames);
...
...
}
}
Now here's our problem: when opening the plug-in in Logic Pro 7.2, the
side chain option is shown correctly and it set to 'none'. However,
even when set to 'none', IsActive() returns true, while I would expect
in to be false...
Any clues on why this happens? Is this normal behaviour, a bug in Logic
or should I be checking other things to test whether the side chain is
being used?
Thanks!
Floris Klinkert
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