Re: [Linuxsampler-devel] Initial Envelope Generator

[<be...@ga...>]

Scrive Christian Schoenebeck <chr...@ep...>:

> Hi everybody!
> 
> Sorry that I didn't had time to answer. I'm currently implementing EG1 
> (amplitude envelope generator), so no need for a quick hack, I hope to finish
> 
> it tomorrow or at least til sunday.
> 

Wow Christian, that would be wonderful ! (friday is the D-Day)
I'll tell the sampling producers to handsign you a copy of their sampling CDs,
but only if their CDs play back well on LS :-)


> 
> end (usually the limit of the variable type), and the other two are 
> self-explanatory I think. This heavy function is not a problem because it 
> will only be calculated once when a voice will be triggered (or sustain value
> 
> changed by some controller, etc.).

Yes if this happens only at note trigger time then it's fully ok.

> 
> I'm not sure already, but at the moment I'm more tending to queue and process
> 
> events sample accurate not only in a certain amount of steps (32 was proposed
> 
> by Steve I think). My idea is to use two different Interpolate loops; one 
> which processes events and one that is executed when there are no events 
> queued for the current time stage. This will switch respectively.

you mean like I said the other day ?

render_audio() {

  while(samples_left) {
  samples_to_next_event=s2=check_for_events();
// if no events are pending samples_to_next_event should be
  samples_left

  while(--samples_to_next_event) {
   interpolate();
  }
  samples_left -= s2;
}

David O. is this ok ?
More efficient methods ?

cheers,
Benno



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