Cycling 74 » Topic: SDIF Objects and Stability?

SDIF Objects and Stability?

Matthew Aidekman — Tue, 04 Aug 2009 12:36:48 +0000

What should I know about the SDIF objects to keep them running smoothly? I keep getting stack overflow messages which end up quitting max. I suspect the instability has something to do with my [SDIF-Tuple]—>[p funkify the tuples]—>[sinusoids~] A few times I’ve “narrowed” it down to something in the funkify tuples patch but no matter what I replace, the crashes always happen at random times.

I’m running in a poly~
128 VectorSize
audio interrupt

Is this ok?

Anyone else sometimes feel like for every moment of inspiration there’s weeks, months or even years of building infrastructure and debugging?

Re: SDIF Objects and Stability?

mzed — Sat, 08 Aug 2009 00:13:57 +0000

I don’t know of any problems with SDIF-tuples that would case a stack overflow. Make sure you have the latest versions from cnmat.berkeley.edu/downloads

SDIF-tuples could be putting out *a lot* of data. While stack overflows usually happen when there’s a loop, they could be a product of the stack being too big. Maybe a defer object somewhere in the middle of your funkification might help.

Re: SDIF Objects and Stability?

Matthew Aidekman — Sat, 08 Aug 2009 03:53:42 +0000

mzed thanks for your response. I *am* running at 128 sample rate with audio interrupt on. But this seems to be the only way I can get decent accuracy… Am I imagining things? would defer weird this out? Maybe I should split the original SDIF up into a few different parallel bands? Is the point to get something that sounds like the original? Because this seems nearly impossible…

I’ll attempt to rework the patch in the mean time.