Doepfer

Hello

The most important thing: The VCA for the loudness envelope must be a 
linear VCA! Log VCAs are intended for lineare modulation voltages.

If you want to change the curve of an standard envelope like the A-140 
you need a linear DC-coupled VCA like the A-130 series after 2001.

Connect the envelope out to the VCA-Signal-In
Connect the inverted envelope out with the CV2-In of the A-130
Raise VCA Gain to about 75% and set CV2-In to 0%
Now start increasing the CV2-In amount and raise synchronously the VCA Gain.
Take the VCA-Out as envelope source for the Audio-VCA.

The inverted envelope will now dampen the normal envelope the more, the 
higher the envelope is.

The same can be achieved basically with the A-141-2 using its inverted 
envelope out and sending it to its Level CV In, but that is missing the 
correction in the total amount, that we can do with the VCA-Gain at the 
A-130.

Florian



Am 30.01.2015 um 13:56 schrieb racc00nb0y@yahoo.com [Doepfer_a100]:
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> Hi thanks for the explanation.
>
> I was just wanting to experiment with things such as linear decay, as 
> I've heard this is good for 909 type sounds and also would like to try 
> convex decay as to make it more boomy on drums etc.
>
> When I use the CV ins can I flatten (to an extent) or reverse the 
> curve to with modulation? If not, what do the CV ins do? I read it 
> changes the time, which according to my calculations should make this 
> somehwat possible with LFOs or another ADSR for example.
>
> Thanks
>
>
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