Gate information

[Hans-Emil]

> I'm looking for a way to have an audio signal trigger a gate CV when it's
> over a certain threshold.  The idea is to have an filter frequency ADSR
> that is triggered by the incoming audio signal for interfacing analogue
> and digital gear.

You might want to have a look at the schematics for the Korg MS-
20. I posted a link some days ago. It has a "external" signal 
processor that will do just that thing (and quite a lot more with a 
little imagination).

Hans-Emil