[sdiy] Companders

[harrybissell]

Hi Terry (et al)

The fixed delay need be no longer than the shortest variable delay
you can acheive. Probably a good 1ms delay is fine.

The moving delay should be from 1ms to no more than 16ms...
I'd say 4-8ms seems to be the best range overall...

H^) harry

KA4HJH wrote:

> >Another route, would be two longer delays in parallel. Modulate one with
> >respect
> >to the other. The benefit would be through zero possibilities, the downside a
> >longer delay will be added to the signal, bad for feedback.
>
> It seems to me that a compromise approach would be to use a short, fixed
> delay that's about the same as the minimum delay of the variable delay
> line. That way you minimize the latency and can still sweep all the way to
> zero. I'm not sure that going all the way to zero is even desirable since
> the comb filtering will go out of the AF range. How short a delay is
> actually useful for audio?
> --
>
> Terry Bowman, KA4HJH
> "The Mac Doctor"