Doepfer

>you could also add a reference envelope output for every stage like 
>the A142 which is basically a logarthimic decay envelope to to do 
>short 
>percussive sounds , this would save your envelopes for more creative 
>modulations. 

you're probally thinking how would this would work?

you use the second set of toggles on the A155, i.e. you use row 3 to 
trigger the decay envelope in the A154. or have a switch pot beside 
the decay output to turn the trigger feature or off. in the off 
position the envelope will fire with every clock cycle. the decay set 
is by the pulse width. you could also use this in various ways to any 
vc input. i believe this output should be buffered, just in case you 
use it to drive multiple inputs.

RM