Hi

thanks Ilanode, but actually this kind of quasi ring mod AM is exactly
what I don't want. I want to accurately translate the amplitude envelope
from one sound to another.

Allen Strange's book led me to believe an AC capable VCA could do this
for me - as an alternative to a complex envelope detector setup, but
when i try I get exactly what you describe - AM distortion, or worse. So
either i misunderstood him completely or my VCAs (analogue systems rs180
and plan b LPG)are not AC coupled in the sense that he meant

Richard

ilanode wrote:

>
>
>
> I probably got you wrong but if you insert one audio into Signal In and
> another one into CV In you'll get AM which re rs180sembles ring modulated sounds.
>
> You might want to patch the 2nd audio source into an External Input
> module and use it's Envelope Follower output for the CV In of the VCA.
>
> But then, I might got you wrong.
>
> Best, Ingo
>
> --- In Doepfer_a100@yahoogroups.com
> <mailto:Doepfer_a100%40yahoogroups.com>, Richard Scott
> <richard_scott@...> wrote:
> >
> > Hi
> >
> > I am interested in using one audio signal to determine the amplitude of
> > another. I think an AC coupled VCA or mixer is the way to do it What
> > VCAs or VC mixers in eurorack format can offer this facilty
> >
> > Richard
> >
>
>