[LAU] Filter envelope

[Fons Adriaensen]

On Thu, Mar 10, 2011 at 07:17:53PM +0000, Q wrote:

> I'm looking for a resonant filter that's switchable between lowpass,  
> bandpass and highpass and which has a traditional ADSR envelope  
> controlling it. I'm wanting something that can be used in JACK Rack or  
> something like that, or which could be used as a plugin in Ardour, in  
> order to process incoming audio in real time.
>
> There are plenty of LADSPA filter plugins, but they all seem to be  
> either static or swept by an LFO or similar. I thought someone, at some  
> point, might have made a filter and envelope triggered by an incoming  
> signal, in the way that a synth's filter does.

A combination of mvclpf-* and mvchpf-1 and some envelope generators
in AMS will bring you very close to the original Moog thing.
You can wire AMS as an insert in Ardour.

Ciao,

-- 
FA