I was thinking today that it would be cool to be able to record a bunch of (percussive stuff) in a buffer, and then have NMF pre-split a bunch of stuff. Every time I’ve done this with more percussive material, I end up getting multiple versions of the same things (as in, the same onsets, but somewhat deconstructed). I don’t know if this is an intrinsic characteristic of the algorithm where it tries to keep things horizontally coherent, rather than vertically.
Now, I can seed bases, and perhaps give it a bunch of specific sounds/registers (e.g. crotale, kick, rim, etc…), but I feel like I may get better results if I was able to fix the activations instead. So things with specific contours would get clumped together.
Don’t know if I’m overlooking something simple/silly, but I never seem to get satisfying results from NMF unless the material has multiple/simultaneous/consistent drone-y things going on (like the examples in the helpfile).