[sdiy] Lin/Log VCAs and envelopes - compensating for log VCAs

[Richie Burnett]

The Roland Juno 106 uses a linear attack phase in it's ADSR.  The user 
manual seems somewhat confused about the issue showing a selection of 
drawings with both linear and expo attack phases when discussing the ADSR 
envelope controls.

-Richie,

Colin f wrote:

> A linear attack on an ADSR does make more sense, that's why
> you'll find the threshold point that ends the attack phase set
> some way below the target voltage for the cap, so the attack
> phase is a more linear part of the RC curve.