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10.8.4 introduced incessant audio glitch

During iTunes playback, everytime the audio squawks and drops out for a second, the following spew appears in the console:



6/5/13 8:39:17.533 PM coreaudiod[171]: Enabled automatic stack shots because audio IO is inactive

6/5/13 8:39:22.724 PM coreaudiod[171]: Disabled automatic stack shots because audio IO is active

6/5/13 8:39:43.297 PM coreaudiod[171]: Enabled automatic stack shots because audio IO is inactive

6/5/13 8:40:50.885 PM coreaudiod[171]: Disabled automatic stack shots because audio IO is active

6/5/13 8:41:45.525 PM coreaudiod[171]: Enabled automatic stack shots because audio IO is inactive

6/5/13 8:41:45.884 PM coreaudiod[171]: Disabled automatic stack shots because audio IO is active

6/5/13 8:41:51.503 PM coreaudiod[171]: Enabled automatic stack shots because audio IO is inactive


I've installed the freshest audio drivers to no avail

MacBook Pro, OS X Mountain Lion, 17 inch; quad i7, 16gig, 14TB array

Posted on Jun 5, 2013 7:50 PM

Reply
42 replies

Jul 8, 2013 12:25 PM in response to qwerty12_1

Getting rid of the SPAM is all that matters. Functionality is fine. If this were my thread, that would be my answer. Thanks qwerty.


1) sudo nano /Library/Preferences/Audio/com.apple.audio.ServerSettings.plist


<?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>


2) Write out & Reboot

Jul 9, 2013 7:34 AM in response to nbar

nbar wrote:


Is anyone experiencing this problem without Flash Player or any Adobe related plugins (CS5 installs a ton)?


My answer is already in the post you replied to. 🙂


To be more specific, the console log spamage persists but I haven't noticed any audio glitches associated with it (like others have reported) on 10.8.4 systems without any Adobe software installed.

Jul 19, 2013 1:17 PM in response to kallisti

I am getting these errors too, but mine is directly related to using Terminal. Every time I get an error beep, like trying to use tab complete feature. It creates this log file.


7/19/13 2:55:20.764 PM coreaudiod[225]: Enabled automatic stack shots because audio IO is inactive


I think this is an OS glitch. Not adobe, not 3rd party.

Jul 27, 2013 7:27 PM in response to jpur

I created the .plist file as indicated above, now I see:


28-07-2013 03:22:24.441 coreaudiod[187]: FIXME: IOUnserialize has detected a string that is not valid UTF-8, "�a *�???".

28-07-2013 03:22:24.441 coreaudiod[187]: FIXME: IOUnserialize has detected a string that is not valid UTF-8, "�a *�???".




in console logs (twice as shown) when I boot up.


Is this expected?

Jul 27, 2013 7:33 PM in response to sjk

Whoops. Thanks. This started when I updated my machine to 10.8.4, but I already had Adobe software so I couldn't verify myself without uninstalling it. I think it's a 10.8.4 bug. Like you, I haven't experience any problems with audio performance or functionality, so I just told my console to stop logging it.

Aug 24, 2013 10:03 AM in response to kallisti

same issue. this didn't happen with 10.8.3. it doesn't happen when playing music but it does happen almost constantly when playing a move off a networked drive through VLC. i've been using the same setup for years without issue. now the video locks up momentarily as the audio hiccups. the log file is full of:

13.08.24 10:58:03.212 PM coreaudiod[232]: Disabled automatic stack shots because audio IO is active

13.08.24 10:58:08.423 PM coreaudiod[232]: Enabled automatic stack shots because audio IO is inactive


etc., etc.


i only have the basic stuff:

/Library/Audio/Plug-Ins/Components/A52Codec.component

/Library/Audio/Plug-Ins/HAL/AirPlay.driver

/Library/Audio/Plug-Ins/HAL/iSightAudio.driver


10.8.4, iTunes 11.0.4 -- i'm upgrading to 11.0.5 to see if that helps.

Sep 16, 2013 1:26 AM in response to kallisti

I have a fresh install of 10.8.5 and added my stuff (VLC, IntelliJ, Vmware..).


Started to hear a small beep from time to time. Checked the logs and:


16/09/13 6:21:43.096 PM coreaudiod[160]: Enabled automatic stack shots because audio IO is inactive


Really annoying since before reinstall (bought a SSD), no dramas


I will update the com.apple.audio.ServerSettings.plist and see what's going on ...

Sep 26, 2013 1:05 AM in response to qwerty12_1

This hack* also solved the problem for me. I previously upgraded from 10.8.4 to 10.8.5, but this message was still present => after aplying this .plist, problem has gone :-)


*

1) sudo nano /Library/Preferences/Audio/com.apple.audio.ServerSettings.plist


<?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>

10.8.4 introduced incessant audio glitch

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