Long time lurker, first time poster.
I have had the marvelous ER-301 for a solid couple of months, watched all of Neil’s & Joe’s videos (thank you heaps for those, they were key in my progress with the module), gave a fair chance to most of the custom units available here, and for the first time tried building my own custom unit based on a guitar pedal effect… and failed miserably.
So I am hoping a kind soul can shed some light on how an effect like the Shallow Water could be created in the ER-301.
Based on a traditional analogue chorus/vibrato circuit, the Shallow Water varies the delay and filtration created in relation to the input signal, simultaneously giving an old-tape-like warmth and sporadic flutters of pitch and modulation (further info and the circuit schematics can be found here: https://bit.ly/2KmUqFK)
First trouble I encountered was the lack of Anti-alliasing filters on the 301, but even without this piece of the puzzle I could not get to anything remotely similar to what I was expecting.
I would appreciate any insight, help, or experiments.