For Shadows, you could try the MultiTap algorithm. The ‘echos’ I hear in my head (Apache or FBI – I don’t remember which tune I’m remembering, lol) are produced by the different taps on a tape echo. You could also try TapeEcho. Either way, the number of repeats is set by the feedback parameter. Again, check out the algorithm guide.
Btw, because each forum post is approved by an actual person it can sometimes take a while for folks replies to appear depending on their time zone.
