Thread: Real Time CPU
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Old 04-26-2012, 01:55 PM   #13
Spectralis
Human being with feelings
 
Join Date: Aug 2010
Posts: 67
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OK I've found the answer to the problem.

It has nothing to do with the computer, audio card or any hardware related issue.

Just as the SOS article describes, Reaper assigns CPU load per track.

What this means is that if you have too many plugins on a track or a single plugin on a track that is CPU intensive then it causes the audio to crackle.

I know this to be a fact because I loaded six instances of SynthMaker into Reaper and as long as I kept each instance at 8 voice polyphony in 'Best' sound quality mode there were no glitches and everything played back perfectly even though CPU load was 94% for all six cores.

IOW load too many or too CPU intensive plugins into a single track and Reaper will crackle. Distribute the load over multiple track and Reaper will playback fine.

Who knew, eh?

That begs the question,

Is there anyway round this?

Last edited by Spectralis; 04-26-2012 at 02:01 PM.
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