EG design

[Tony Allgood]

Are you saying that they use, say a 15volt supply to charge the timing
cap. in the attack phase then initiate the decay phase when the cap pd
has reached, say, 5volts. This would appear to approximate a linear
rise as the exponential curve has not significantly rounded off. But
what about AD envelopes, eg. Moog Rogue, these sound OK and they charge
the cap.to full pd.

What about VCF sweeping, is it worth having a linear CV input for
exponential EGs?

Tony Allgood.

Cumbria, UK

'I may live in the middle of nowhere, but the views are nice'

----------
> From: Haible Juergen <Juergen.Haible at nbgm.siemens.de>
>
> Subject: AW: EG design
> Date: 25 August 1997 3:22 PM
> 
> But what about the linear envelope + exponential VCA approach?
> What will it do to the *Attack* phase ?!
> 
> The common (moog and many more) method gives almost linear
> ramps for attack, and expo ramps for decay / release.
> (almost linear, because the asymptode is usually higher than the
> peak voltage)
> 
> The lin EG + expo VCA method gives exponential *rising* attack,
> which is rather unnatural, IMO.
> 
> JH.
>