I know what granular synthesis is. A digital delay is really just a little sampler where the buffer is continuously being written to. The H9000 has tools that can be repurposed to do granular, and I may have a go at building something, hence why I was asking what features you are chasing.
Do you want a static sample that you mess with in real time (ie load a sample by recording with the H9000, and then mess with that sample), or do you want to process live audio by looping a section of the sample buffer that is constantly changing. Do you want envelopes on each grain, crossfade start and end, ability to reverse direction?
There are quite a few ways I could build this on the H9000, but depending on features, would determine which approach to take.
