[sdiy] AR Envelope buffer?

[Charles Brodeur]

Hello All,
 I built this circuit, an AR generator, and I thought it worked.
However, just because the envelope light comes one doesn't mean it's
going to work with a VCA.

Today I built a VCA, and wanted to test it out. So I plugged the output
of the envelope into the VCA. It will turn on when given a trigger, but
it will not do the attack or release stage.

The schematic is here:

http://www.sdiy.org/cbrodeur/ar.gif

I was wondering if a buffer would be the solution. I know the envelope
is being formed becuase it will light an LED in such a fashion. Could a
simple buffer made out of an op-amp be the solution?

I hope this all makes since, my emal composing skills are subpar
tonight. Thanks for any insight you all can give.

-Charles


		
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