[LAD] Lv2 port replication [for dummies]

David Robillard dave at drobilla.net
Fri Aug 14 14:56:55 UTC 2009


On Fri, 2009-08-14 at 10:13 +0100, Steve Harris wrote:
> On 14 Aug 2009, at 00:48, David Robillard wrote:
> >> Several channels on a mixer should be doable with the 1/N channels
> >> restriction.
> >
> > A mixer usually has several 'strips', each of which may have different
> > counts.  Like the ardour mixer, for example.  This is a simple,
> > realistic, and useful case where simply having a single global value
> > doesn't cut it.  The same goes for virtually anything with several
> > signal paths.
> 
> I don't see a) how having multiple channel counts makes any difference  
> b) how the hell the host would deal with it.
> 
> Lets see, in a typical mixer setup, we have
> 
> Audio:
> in X N
> out X N
> master out X 2

Hm, 2?  Why 2?

> bus out X 8

Hm, 8?  Why 8?

> Control:
> master gain X 1
> channel gain X N
> low shelf X N
> high shelf X N
> trim X N
> pan X N
> bus sends 8 X N

inputs 2 * N
outputs 2 * N

Why 2?  Why do they all have to be 2?

Perhaps a simpler example: an n->m panner.  Are you really going to
argue that an n->m panner is not a useful plugin!?

-dr





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