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On Tue, 2008-01-08 at 17:29 +0100, Sebastian Tsch=C3=B6pel wrote:

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> Hello List,

>=20

> I worked with a (jacklab) VST-capable Ardour version and some free VST -=20

> plugins today and created some kind of a mic- channel strip with a=20

> deesser, eq, compressor, reverb, etc. The problem is: When I bypass the=20

> whole strip voice and music are perfectly synchronized. but when I turn=20

> all the effects on I have a bad latency between the (effect-free) music=20

> and the (channel-stripped) voice. When I use like 50 ladspa eq's,=20

> limiter or whatever at the same time in the same channel the voice in on=20

> time, so I assume that LADSPA plugins are either producing no latency=20

> (which i cannot believe) or there is some kind of a latency management.

>=20

> Is there something I can do about it (except delaying the other channels=20

> which is basically not possible since the delay changes with the number=20

> of effects)

LADSPA plugins report their latency, and Ardour compensates. Your VST

plugins probably don't report any latency.
Try inserting the "Artificial latency" plugin from the swh-plugins

package after the VSTs and tweak its latency. It doesn't modify the

signal in any way at all, it just pretends that it has a latency so that

Ardour will compensate for it.
--ll
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