Subject: Re: [linux-audio-dev] XAP: SILENT event handling
From: Steve Harris (S.W.Harris_AT_ecs.soton.ac.uk)
Date: Mon Dec 09 2002 - 17:18:17 EET
On Mon, Dec 09, 2002 at 03:11:51PM +0100, David Olofson wrote:
> > I was assuming the SILENT event would be aginst a voice ID.
>
> Uhm, a Voice is an abstract object that has no known relation to
> whatever audio outputs the synth may have... The SILENT event I'm
> talking about is what a reverb FX would send when the tail goes below
> the threshold, or that a synth would send when *all* Voices that are
> routed (dry) to a certain audio output are dead.
OK, that sounds useful, but also really hard. Realisticly a reverb can't
tell when its gone to zero except by inspection and guesswork. If it has
nonlienar internal behaviour it may not even be possible/practical. I
tried to cacluate the RT60 time for Josep's gong model, based on the
feedback levels. It turned out to be /seriously/ hard. Basicly not
possible without actually running it ;)
I though you wanted it so that the host would know when instrument voices
had finsihed (as in saol or csound).
If you want to render tails I think its just better to have a postroll
time like ardour (and presuamably protools).
- Steve
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