I did all that, but I guess there was some other initialization issue. I also loaded a preanalyzed 499 (@iterations 1000!, which I did when I went out to the post office), so don’t know if that was part of the problem as I didn’t use the decomposition part of your patch.
I did 1000 and got very, very faint results so maybe the buffer object is limited, or maybe the nmf process has a limit. For 500, do you get similar sounding results in both patches?
I see the problem, I had to reinstantiate the poly~ after changing the voice count.
The sound is similar, and not as interesting as the 127 voice version I think. At 499 voices it just sounds like a really subtle lpg or something, just fading the volume out.
Plus with the 127 voice version you could get a cool sound by getting the filter pretty “low” then scrambling the voices, to create filterbank-y type sounds.
I also got a crash for my troubles too (not sure if it’s yours or Max’s though)
filter crash.zip (32.6 KB)
Is the crash on my version? Any reproducible bug?
As for the idea, I would probably go dirty, like 25 ranks 25 iterations.
As for real-time, remember my demo patch entitled ‘becauseIcan’ - it is real-time on short buffers. See this thread
The crash happened when I was doing something random, so I don’t remember exactly (not reproducible).
It was your patch.
I remember getting the patch you posted in that thread working before, but now all it does is spam this to the Max window:
fluid.bufnmf~: Buffer given for resynthbuf doesn't exist.
edit: It looks like there’s an issue with fluid.bufnmf~ and polybuffer~ now. I added a comment to the other thread, but the patch works fine if I change the buffers to normal buffer~s, but obviously the rest of the patch doesn’t work then.
The crash is
Thread 41 Crashed:: Built-in Output
0 play~ 0x000000011ab5d1e6 playN_perform_local64 + 3061
1 com.cycling74.MaxAudioAPI 0x00000001187a50ec dspchain_tick + 405
2 com.cycling74.MaxAudioAPI 0x00000001187b7040 plugrunner_tick + 197
3 com.cycling74.MaxAudioAPI 0x00000001187b7f2a plugrunner_process + 213
4 com.cycling74.MaxAudioAPI 0x00000001187d1db5 patchernode_process + 292
So, could be Max (because that’s their object) or possibly us, if there’s still somewhere I’m writing to memory that I oughtn’t. If it keeps happening / you’re able to isolate it, do let us know.
2 Likes
Here’s the updated filter patch.
I did some messing with the patch from the last time it was posted, to see if I can do the fading in/out a bit better, but it’s too tidy or elegant. I’m certain there’s a proper mc. solution to this problem (“fading in” lots of channels, one at a time), but I haven’t found it yet.
For now this is the patch as it was last posted, but working for alpha04.
----------begin_max5_patcher----------
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-----------end_max5_patcher-----------
Perhaps you could go a step further and analyse some features of each rank, then filter by some criteria of feature?
Possibly a terrible sounding idea - but I’d be interested to see it, just not code it up right now.
Yeah that’s a good idea, though I’ve not worked on this patch for a bit. I just wanted to have the forum version “working” with the new syntax.
Could rank them by centroid or something similar, then fade them out in a more “realistic” manner.
Or with some creative ordering, could probably even simulate resonance by having higher centroid peaks near the cutoff point as you roll things down.
1 Like
My thought was SFM or roughness, something to make the sound go from brittle -> smooth and back.
1 Like
something is on the way to help that… stay tuned!
2 Likes