just a little patch for playing around.
it's kind of of oldschool psycho delay - the audio signal is delayed in a buffer delayline AND pitched in a second (pitch) delay line with a forward or backward moving read index. to avoid clipping at the buffer end, the pitch vd~ is doubled (with different phased read index) and windowed with a hanning. this way, the feedback signal is getting higher and higher / lower and lower.
have fun!

http://www.pdpatchrepo.info/hurleur/psycho_delay.zip

thanks

Nice playing it with small values of "del", high "fdb", high "mix" and real-time variable "pitch" !
Fun.

yeah this is a great patch thank you