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Logic Pro/Express 9.1: Clicks and pops in audio with low I/O buffer settings in 64-bit mode

Posted in Apple Logic

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Symptoms

When working with Logic in 64-bit mode, you may hear clicks and pops in the audio output with I/O buffer settings that work without issue in 32-bit mode.

 

Products Affected

Logic Pro 9.x, Logic Express 9.x

Resolution

This may occur if you are working with 32-bit Audio Unit plug-ins via the Audio Unit Bridge. To resolve the issue, either increase Logic's I/O buffer size, or use only 64-bit Audio Unit plug-ins in the project.

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Read more http://support.apple.com/kb/TS3502