Subject: Re: +trigger, Re: [linux-audio-dev] ladspa.h.diff
From: Tim Goetze (tim_AT_quitte.de)
Date: Sat Mar 06 2004 - 03:52:43 EET
[Jesse Chappell]
>Dave Robillard wrote on Fri, 05-Mar-2004:
>
> > On Fri, 2004-03-05 at 13:10, Steve Harris wrote:
> > > On Fri, Mar 05, 2004 at 05:54:52PM +0100, Tim Goetze wrote:
> > > > [Taybin Rutkin]
> > > >
> > > > >TRIGGER, or MOMENTARY in my patch
> > > > >(http://www.mail-archive.com/linux-audio-dev_AT_music.columbia.edu/msg11074.html),
> > > > >should really be 804, because it implies TOGGLED.
> > > >
> > > > yes, i thought about this, but came to the conclusion that
> > > > variable-amplitude triggers are useful to have.
> > >
> > > Momentary controls are boolean by definition.
> >
> > Variable-amplitude triggers would be really cool though. You could,
> > say, make a synthed snare generator plugin that is velocity-sensitive.
> >
> > Actually, something like that would be out of the LADSPA domain I
> > suppose. An idea anyway.
>
>You just use a regular control port to specify
>your threshold/amplitude. The trigger port just does the "triggering".
the proposed patch fits this model well: a plugin need only specify
TOGGLED in addition to TRIGGER.
at the same time, connecting a 'velocity'-enhanced trigger source to a
port defining TRIGGER without TOGGLED is possible with the minimum
need of transmission logic (conditionals, ports) in the host as well
as in the plugin.
amicalement,
tim
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