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Spat-sdif-render in with OM-Spat

Spat
#1

Hello,

I am using om spat to make 3D spatialisation of some hundreds audio channels. The waiting time is considerable for every synthesis and I observed the render takes always less than 100% of CPU (using single core) .

I wonder if there is a way (f.e. change some parameter or global variable in om-spat) to enable something like multithreading to use all 6 or 8 cores for rendering? When I works for example with Modalys, it always enables it and could take 1200% or 1600% CPU to accelerate the rendering time.

Thank you very much in advance!

Best wishes,
Jialin

#2

Hello Jialin,

Indeed, there is no multithreading option, so everything runs on one core only. And it would not be easy at all to add multithreading in spat-sdif-renderer.
That being said, I have just made some improvements that might significantly speed up the rendering time (especially if you process short files). If you are on macOS, I can send you a new version now, for you to test it. If you are on other platforms, we’ll try to make an update in the coming days.

Best,
T.

1 Like
#3

Thank you so much for the support ! Yes I am using macOS 10.14.6 at the moment. That is be great if you could send me this new version .

#4

OK, here is a new build for macOS :
https://filesender.renater.fr/?s=download&token=bd585c41-cdaa-45de-a384-7e96d4d2935e

Let me know 1) if that stills works properly, and 2) if you notice any speed improvement.

All the best,
T.

#5

Thank you for the build! I tried today. For the 3 dimensional spatialisation, it doesn’t work (maybe because I used a relative old computer). But for the 2 dimensional spat, yes I think it runs quicker

Best wishes,
Jialin