Logic Pro (X) Logic dropout

peterlemer

Logician
Having upgraded to Big Sur and a newish iMac I am horrified to experience audio dropout in a project with only 4 MIDI tracks.
In fact just running one track solo. with the Logic sampler plugin set to piano, it is still dropping out :-(

Not a great £2.4 k'sworth so far.
 

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I don't have any specific suggestion as to what could be causing this, but as I'm sure you would know, it ismost certainly not normal behaviour, your Mac should be capable of running large and demanding Logic projects. Couple of things: I see that you have the buffer setting at 1024. Strange as it might sound, that could be detrimental. You are giving the CPU so much time to process those large batches of data that it may actually be "taking a break" in between receiving and processing what Logic is sending. Try 256, or 128 or 64 - under normal circumstances with such a tiny project 64 should work. Other that that, probably worth doing some research into how up to date various parts of your system are running Big Sur - are the drivers for your focusrite interface OK to go with Big Sur? Any 3rd party Audio Units that might be a cause for concern?

kind regards

Mark
 
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Thank you, Mark - the problem was that, as I had upgraded both OS and iMac, my licence for the Izotope Maximiser had become detached, so the plugin on my output was in demo mode :-(

Silly but elusive.

Re-registering the plugin solved the problem

pete
 
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