Envelope Generator?

[Kinski]

Hi all,

I'd like to build a Korg MS-20 filter and an Envelope Generator to control the filter in a pedal format. Does anyone have a layout for an Envelope Generator?

[PMowdes]

Have a look at the frostwave funk a duck and the resonator, not sure if there are verified versions out there but we sell various versions on DEFX if you need a pcb

[velouriafx]

bump :D

[Kinski]

Thanks for your response. Sorry, I should have clarified. Looking for an ASDR or AD envelope generator. Like the ones often seen in modular synths.

[clockman]

Check into this
http://guitar-fx-layouts.42897.x6.nabble.com/Craig-Anderton-Envelope-Controlled-Super-Tone-Control-Auto-Wah-tp26299.html

MAO has posted a great filter here. Thanx again MAO.
 the envelope follower board (with a few small modifications) can be built as stand alone unit with some pretty good results.
it entails modifying a device to use it with as well. could be but in with device too.

I've had some successes with:
  Escebedo's Ugly face and PWM
  Parasit studio's Corruptor ring mod and sonic reducer bit crush
  1776's multiplex jr delay
  and the ross phaser.
all fun stuff
If interested I can try to elaborate.

[Sergio]

How did you connect it to the Ross Phaser? How it was interacting? this would be something interesting to try. Thank you

[clockman]

 Disclaimer:
 I am a hobbyist who experiments. my terminology may be incorrect, my phrasing and explanations may be awkward. Now, let's have at it!

 first I used this layout
http://tagboardeffects.blogspot.com/2016/05/ross-phaser.html

 This was one of the first uses I tried with this envelope follower and I built it inside a box with the phaser.
I'm using a modded version of  MAO's layout for the Craig Anderson envelope follower.


 The phaser's LFO needs to be disabled and replaced with another voltage source.
 On the top row, there is a 10k resistor feeding into pins 1 and 16 of an Lm13600 chip and a long link feeding to the other Lm13600 chip's pin 1 and 16.
 I added a wire after the 10k, sent to a switch, and back to the board and placed a cut between the two added wires. the other pole of the switch is the voltage from the envelope follower board.

 Hope this makes sense and was of any help.
 the interaction is good, it does what I thought it would do. the phase sweeps dependent on picking/
strumming strength. It feels very much like an autowah with certain settings, with other settings, strumming takes on a new feeling, a less predictable sweep, almost breathing and never out of sync with your drummer

[Sergio]

Thanks a lot, sounds good then, I remember reading Mark Hammer something about making the last 2 stages from a ross phaser low pass instead of bandpass, maybe that would help even more to the autowah character.