env shapes (was: optocouplers)

[Joachim Verghese]

On Thu, 24 Oct 1996, Haible_Juergen#Tel2743 wrote:

> >  I personally find this to be a feature, and, therefore, prefer envelope
> >  generators with linear slopes  - as it allows for;
> 
> Are you sure? I mean almost every analogue synth I know has RC-shaped
> slopes. I use a Slew limiter (=AR envelope with linear slopes) in my
> Modular from time to time, but for general use I highly prefer the
> *traditional* shape.

Another difference is that with linear-slope envelopes (and portamento),
you control slope *rate*, whereas with the RC-variety you control slope
*time*.

Changing the sustain level of a linear envelope affects the decay *time*
too, but the decay *rate* is constant.

(This is true for linear envelopes of the OTA-with-heavy-feedback type,
or similar).

-joachim