Stumbled across this thread again. Sorry, I must've been asleep when I posted here previously; I definitely didn't get the gist of it before (and it's really not that hard to do so). Maybe I was fixated on the reverb or something, and my own use of two caps on a pot, which is usually to add bass on the input of something, not to bleed it off...
Anyway... SEABED DELAY, not Gravitation Reverb.
Yes, adding the Gravitation-style thing could work on the SEABED delay repeats; did you try implementing it and if so where?
if I go from the pad that should be pin 3 of the mix pot to a HPF, which feels like it should be cap to leg 3 of a pot, leg 1 to ground, where do I get back to pin 3 of the mix control? or can I just take it onto pin 3 of the mix control?
Pin 3 is feeding the repeats back into the board, so...
A cap to replace the leg of the pot's pin 3, then a resistor from the board's pad to ground.
Snip leg 3, get out some alligator clips and experiment with values until you've got what you want.
Perhaps some other approaches are out there?
Merlin Blencowe mentions getting some bass cut on the repeats.
Electrosmash, helpful as always...
Circuit analysis of the PT2399, a CMOS echo/delay/reverb processor by Princeton Technology.
www.electrosmash.com
C9 and C10 of the Seabed schematic could be reduced to get some highs back, but that would also let more noise through.
Maybe some info can be gleaned from the
tagboard boys'n'girls.
Then this...
Lots of great PT2399 designs out there….. I have tried a number different variations and have built what I consider a best performance design, using a compander, elaborate filters, etc. I hav…
circuitsalad.com