I'm putting this here coz MusE is what I use, and I want to do this with MusE.
For the music I'm working on I want to add the sort of echo that the Roland Space Echo is famous for. It's very popular, so I'm surprised I haven't found a straight port of it to an open source plugin that I can find on Debian / Devuan or KXStudio. I'm also surprised that the only search hits I can find here are for people using the actual device, not people trying to replicate the device.
I've watched a bunch of tutorial videos, and I have figured out how it is supposed to work. So I might be able to put something together using a bunch of plugins. One problem is that most of them are not documented, or not documented well, and some are very complex.
GxEchoCat or Regrader might do some of it.
LSP Artistic Delay Stereo looks promising, but it can't do basic math. I supply the various numbers for the timing equation, but sometimes different channels end up with different results, using the exact same numbers. I'm not confident it can handle the more complex math involved in doing it's actual job. lol
Another potential problem is I think MusE can only handle up to two ins and outs for plugins, but if I'm doing this with a bunch of plugins, then there will be multiple channels in the middle. Carla rack might help there, haven't tried it.
So maybe someone has done this before, and can tell us how?
Should I cross post this to the plugins forum?