Summary
警告音 (alert sound)が鳴るたびに coreaudiod からログが出力される。2013/08/29 11:08:25.048 coreaudiod[120]: Enabled automatic stack shots because audio IO is inactive
2013/08/29 11:08:37.206 coreaudiod[120]: Disabled automatic stack shots because audio IO is active
解決法
/Library/Preferences/Audio/com.apple.audio.ServerSettings.plist を作成再起動をしなくてもログ出力は抑制できた。
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>AllowStackShotsDuringIO</key>
<true/>
</dict>
</plist>Reference
10.8.4 Update available. What does/doesn't work?http://www.tonymacx86.com/hp-probook/100563-10-8-4-update-available-what-does-doesnt-work-6.html#post615947