[sdiy] Looking for schematic for simple percussive envelope generator

mark verbos mverbos at earthlink.net
Sat Nov 8 00:48:59 CET 2008


oh yeah, you need the HOLD portion of the Korg MS-10 envelope and a  
simple AR envelope with zero A. Try the AR in an ARP odyssey.

Mark





On Nov 7, 2008, at 6:39 PM, Adam Schabtach wrote:

> Dear Lazyweb:
>
> I'm seeking a schematic for a simple envelope generator with the  
> following
> features:
>
> -One control for decay. Attack is always "instantaneous".
> -One control for hold time, which is the duration that the output  
> stays
> fully on before it starts to decay. This should range from zero to,  
> oh, half
> a second or so.
> -Positive-edge triggered. I'd like to be able to trigger it with a  
> rising
> edge and not worry about how long the pulse I send it has to be.
> -Small parts count (of course). I want to cram four of these into one
> module, along with some other stuff.
>
> Any suggestions will be very much appreciated. Yes, I know how to use
> Google, and yes, I've looked at various EG schematics (mostly  
> ADSRs). I'm
> hoping that someone will look at the above feature list and go "oh  
> yeah, you
> need ...".
>
> Thanks--
> --Adam
>
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