Affirmation of its USB - El Capitan

10.11.3 OSX

Logic Pro X 10.2, 10.2.1

I continue to receive global seemingly random failures when using audio devices, or USB (CoreAudio) audio devices with lots of tracks to WAV, or 2-3 hours of playback of iTunes.

I only see kernel errors if I run the Console as a user admin! not my normal way of working.

These are typical log entries

System.log:Feb 3 11:58:35 iMac kernel [0]: affirmation of its USB in /BuildRoot/Library/Caches/com.apple.xbs/Sources/AppleUSBAudio/AppleUSBAudio-302.15/AppleUSBAudioStream.cpp on line 4875

System.log.0:Feb 2 19:09:39 localhost kernel [0]: affirmation of its USB in /BuildRoot/Library/Caches/com.apple.xbs/Sources/AppleUSBAudio/AppleUSBAudio-302.15/AppleUSBAudioDictionary.cpp on line 112

System.log.0:Feb 2 19:09:39 localhost kernel [0]: affirmation of its USB in /BuildRoot/Library/Caches/com.apple.xbs/Sources/AppleUSBAudio/AppleUSBAudio-302.15/AppleUSBAudioDictionary.cpp with return 0xE00002BC on line 3172

System.log.0:Feb 2 19:09:39 localhost kernel [0]: affirmation of its USB in /BuildRoot/Library/Caches/com.apple.xbs/Sources/AppleUSBAudio/AppleUSBAudio-302.15/AppleUSBAudioDictionary.cpp with return 0xE00002BC on line 1676

System.log.0:Feb 2 19:09:39 localhost kernel [0]: affirmation of its USB in /BuildRoot/Library/Caches/com.apple.xbs/Sources/AppleUSBAudio/AppleUSBAudio-302.15/AppleUSBAudioEngine.cpp with back 0xE00002BC at line 1759

all CoreAudio. Interfaces USB directly connected to the Mac, not a hub. Several, different cables.

The log console you provided something with OSX Bell indicates himself and not logic... and shows a USB audio device has problems during communications for OS X...

Not all audio devices play well as... especially the software aggregates those when they have not been updated or are not fully compatible with the current version of OS X used... but also some hardware ones in certain circumstances.

Then...

First...

Using a router Audio Soundflower or Jack for example...? If so, uninstall and test...

If your device drivers audio use are completely up to date and consistent with 10.11.3?

Tags: Professional Applications

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