[sdiy] Slew limiter circuit for compressor variable attack/release times

[Seb Francis]

Thanks to Harry for a very elegant solution to this, so no need for 
further replies...

Seb


Seb Francis wrote:

> Hi,
>
> I'm working on a compressor at the moment, but I'm struggling a bit to 
> get the variable attack/release part of it working.  I have a control 
> voltage from the RMS level detector stage and this needs to be 
> slew-limited on its way to the VCA to allow slower attack and release 
> times to be set.
>
> Can anyone point me in the direction of such a circuit?  The VCA is 
> exponential response (dB/V) so I need the slew curve to be a straight 
> line (e.g. like from a constant current source charging a cap), and 
> independent for attack and release.  A normal RC slew curve really 
> isn't what I want.
>
> Seb
>
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