jerzyb0rn Posted September 3, 2011 Share Posted September 3, 2011 Out of no were these last few day my Logic has been playing back crackling audio from what i think is because of a CPU over load. Im Running Logic Express 9.1.5 Macbook 2 gHz dual core with 4 gb of DDR2 800 mHz ram. I tried multiple projects which never have given me any trouble before. They consist of about 10-15 tracks each, mostly AU tracks. Like i said none of these project have given me trouble before. Activity monitor show logic taking about 70% CPU load, and the crackling happens when the CPU level in logic gets around 90% max, which happens inconsitantly about every 10 seconds. Any troubleshooting? Link to comment Share on other sites More sharing options...
bcfromfl Posted September 3, 2011 Share Posted September 3, 2011 Try freezing one or two tracks? Link to comment Share on other sites More sharing options...
triplets Posted September 3, 2011 Share Posted September 3, 2011 What's your I/O buffer in Logic's preferences set to? Link to comment Share on other sites More sharing options...
jerzyb0rn Posted September 3, 2011 Author Share Posted September 3, 2011 in audio>devices tab the I/O buffer size is 128 if thats were i should be looking. But i never have changed that. With that said last week (around the time this problem started) i changed the midi output delay to 22 mili seconds. If that has anything to do with it. Link to comment Share on other sites More sharing options...
triplets Posted September 3, 2011 Share Posted September 3, 2011 With the buffer at 128 you're killing the CPU. Move it up to 512 or 1024 for mixing purposes. Link to comment Share on other sites More sharing options...
jerzyb0rn Posted September 4, 2011 Author Share Posted September 4, 2011 thanks for the tip! Link to comment Share on other sites More sharing options...
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