Envelope follower for external input

[Beethree]

What are some ways to have the voyager's filters follow the amplitude of the external input. I'm thinking that a MF like the Freqbox or MF-101 could generate CV based on the signal envelope. Any better ways?

[ColorForm2113]

yeah you would either need the freq box or MF-101 to output the envelope signal or send your external device into something like the synthesizers dot com Q118 instrument interface, which gives you envelope follower, gate and trigger outputs and allows you to boost the signal up to 1000 times it's original level