Doepfer

> while trying to approximate my favourite bass station sounds on the a100,
> i found the only thing i couldn't get near to was the adsr curves,
> which seem less exponential (vis a vis pitch perception) than the a140.
>
> does anyone have any tricks to flatten out the curve ?
>
> how are the adsr's from other firms in comparison ?
>
> dieter, would there be no demand for an alternative adsr ? the way
> the a140 slowly settles into the sustain level is brilliant for many
> things, but i could certainly also use a curve that makes straight for
> the bullseye, no messing.
>
> cheers,
>
> stu

ADSR envelopes are normally exponential. One would need a current source
(instead of the simple R/C circuit) to obtain linear slopes. The voltage
controlled version of the ADSR A-141 can be modified to obtain more linear
slopes by overdriving (clipping) the OTA that deliveres the charge/discharge
current for the capacitor. For the standard ADSR A-140 that's not possible.

Best wishes
Dieter Doepfer