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Re: [Doepfer_a100] Re: compressor: was: A-129 vocoder usable with fewer than all six modules?

2005-05-12 by Florian Anwander

Hi Gustav

> Hi Florian,
> Just out of curiosity,
> How would you set up a compressor with A-100 modules?
> (Not just to use with vocoder, but generally.)
> I suspect you need a couple of VCAs but how?
> /gustaf
In my book there is a picture... <insert evil Dollars-in-the-eyes grin>

No it is quite simple:

External input Env-Out -> inverter ->  VCA with offsetvoltage
The modulation amount of the inverted signal envelope to the VCA is the 
"Ratio" of a compressor.

If you want "attack" or "release" (in the nameing of a compressor), 
simply add a slewrate limiter after the Env-Follower.

There is no "Threshold" in this construction. It is possible but much 
more difficult to do.


Florian

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