tttxx
Level 1 (10 points)

Q: Sound stuttering after Mountain Lion install

Dear community,

 

after having installed OSX Mountain Lion my sound startet stuttering whenever there is rapid movement on my screen.

This includes e.g. window movement, scrolling through image loaded websites or video playback (flash player, quicktime).

A restart didn't help. I'm using stereo output, not digital.

 

I have connected a second monitor but the problem persists after disconnecting it. Movement on the second monitor also causes the sound to stutter.

My GPU Diode temperature is at 85°C (there is some bug that keeps the GPU under load while a second monitor is connected AFAIK), but I guess it was the same under Snow Leopard.

 

In Snow Leopard the sound output was always perfect even under heavy load or heavy HDD I/O.

 

Any ideas?

iMac (27-inch Mid 2011), OS X Mountain Lion

Posted on Jul 28, 2012 5:55 AM

by Studio Engineer,Solvedanswer
Studio Engineer Studio Engineer
Level 2 (445 points)
A:

deluxeczech wrote:

 

I, too, am having this sound stuttering problem...and it all started after I upgraded to 10.8.  :-(    I have a 27" 3.1 GHz Intel Core i5 with 16GB of memory.  (My husband has an older 2009 model of the 27" and he is having the sound stuttering problem since ML too).  I can promise you that we had no such problems before upgrading, and are not ones to constantly install new software/games/etc.  We do both play World of Warcraft but have done so for a few years on our various Macs.  We don't listen to music or watch videos much on our desktops, so I cannot speak to other sound problems, but when playing WoW and using Ventrilo, there are occasional stuttering instances.  It is not very consistent (that is, always does it during X or Z).  In fact, using Ventrilo tonight and had no problems, but a week ago experienced stuttering when someone else was talking. 

 

I do wish Apple would AT LEAST release a statement acknowledging this issue.  We both work in IT development, so we understand that there are sometimes mystery problems that take time to troubleshoot.  NOT saying anything, however, just makes the company seem uncaring of its customers.  Personally, I would be a bit more content if I KNEW that Apple KNEW and that they were looking into it.

 

While not an ideal situation, it's good to know we are not alone in this...

 

 

Your problems will most likely be related to OS X "sandboxing" just about anything you do.... Sandboxing was supposed to be a "coherent" feature. But wound up being a total performance killa... Apple have been working on this issue a LONG time since 10.8.2.... hence them releasing more betas of 10.8.3 than (I think) any other beta OS X before that... A HUGE problem causing havoc with almost ALL 3rd pty. high performance software..

 

If you are a CRACK... You can google-search (goes beyond this here thread) ways of "overwriting" what OS X regards as "Items/processes which should be sandboxd"... To STOP this non sense...

 

We had to manually delete A LOT of files on the OS to get our system running to accommodate a pro-environment. Even "Files" that Apple forgot to delete themselves.......(Do the G-search or this thread WILL be deleted... hence me NOT going into details)

 

What COULD help you is to safe-boot ONCE and log in.. Then boot normally.. That in MANY cases will take of the problems (short-sighted-ly)... Each time you re-experience the issue... Redo aboe

 

IHTH

Posted on Mar 9, 2013 8:15 PM

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Q: Sound stuttering after Mountain Lion install

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  • by Lvivske,

    Lvivske Lvivske Aug 23, 2012 9:52 AM in response to rxghost12
    Level 1 (8 points)
    Mac OS X
    Aug 23, 2012 9:52 AM in response to rxghost12

    I upgraded to the official 10.8.1 patch and so far so good, but only testing on thunderbolt-to-display audio

  • by chriscologne,

    chriscologne chriscologne Aug 23, 2012 10:06 AM in response to tttxx
    Level 1 (0 points)
    Aug 23, 2012 10:06 AM in response to tttxx

    Sorry Guys, Sound Stutter / GUI Lag ist still there after 10.8.1 Update.

    FYI: I am on the latest iMac.

  • by pepper_chico,

    pepper_chico pepper_chico Aug 23, 2012 10:12 AM in response to chriscologne
    Level 1 (0 points)
    Aug 23, 2012 10:12 AM in response to chriscologne

    And I thought this was mostly an issue with not so new hardware... It was just Jobs die for this to happen? WТF.

  • by Morgan R,

    Morgan R Morgan R Aug 23, 2012 10:14 AM in response to chriscologne
    Level 2 (220 points)
    Aug 23, 2012 10:14 AM in response to chriscologne

    I've also installed the 10.8.1 update and I'm still getting the sound suttering.

  • by BarrettF77,

    BarrettF77 BarrettF77 Aug 23, 2012 11:38 AM in response to chriscologne
    Level 1 (45 points)
    Aug 23, 2012 11:38 AM in response to chriscologne

    Chris and Morgan, I've also done the update and the audio lag and cursor jumping, and GUI issues are certainly lessened.  However, it's still nowhere as good as Lion was.  I'm also using this on a 2011 iMac 3.4 with SSD and 2 TB hdd and 6970 2 Gb of Video Ram and 16 gigs of memory.

     

    Performance should be spot on, but it certainly isn't there yet.  I really wish apple cared about video and audio drivers as much because they are somewhat important to creative projects that involve using my iMacs. 

  • by Morgan R,

    Morgan R Morgan R Aug 23, 2012 11:57 AM in response to BarrettF77
    Level 2 (220 points)
    Aug 23, 2012 11:57 AM in response to BarrettF77

    I really wish apple cared about video and audio drivers as much because they are somewhat important to creative projects that involve using my iMacs.

     

    I couldn't agree more. For a company that prides themselves in selling high quality computing solutions, I would have though an issue like this would have been fixed in 10.8.1. Guess we can only wait...

  • by pepper_chico,

    pepper_chico pepper_chico Aug 23, 2012 12:21 PM in response to tttxx
    Level 1 (0 points)
    Aug 23, 2012 12:21 PM in response to tttxx

    HAHA, it's so amusing, they half-targeted the issue!! Previously I was getting much more glitches playing music on iTunes, I just installed the update, hit play and waited. It played nearly a full song without stuttering, and I was starting to be happy, but at the end of the song, two glitches came up. It kept playing to the second song, the glitches started to accumulate! FUСK! It stopped completely, It's worse.

     

    I just don't know what happens with this macbook but it started turning off internal sound alone, and It's quite warm...

  • by pepper_chico,

    pepper_chico pepper_chico Aug 23, 2012 3:32 PM in response to pepper_chico
    Level 1 (0 points)
    Aug 23, 2012 3:32 PM in response to pepper_chico

    Not directly related to this discussion, but now my macbook is presenting behaviors of this. What a crap. Next time I'll buy a ultrabook and install linux.

  • by pepper_chico,

    pepper_chico pepper_chico Aug 23, 2012 3:37 PM in response to pepper_chico
    Level 1 (0 points)
    Aug 23, 2012 3:37 PM in response to pepper_chico

    So this is the feeling of getting a Mac...

  • by idontcarejustletmein,

    idontcarejustletmein idontcarejustletmein Aug 23, 2012 5:17 PM in response to Morgan R
    Level 1 (5 points)
    Aug 23, 2012 5:17 PM in response to Morgan R

    Let's hope Apple gets to the bottom of this soon.

     

    10.8.1 did nothing. (I'm talking about audio output over thunderbolt BTW.)

     

    Still getting random stuttering. It's only 720p for heaven sakes.

  • by BarrettF77,

    BarrettF77 BarrettF77 Aug 23, 2012 7:16 PM in response to pepper_chico
    Level 1 (45 points)
    Aug 23, 2012 7:16 PM in response to pepper_chico

    Yes, Apple will likely tell you you turned the computer on and are using it wrong.  Much like the iPhone in that we evidently are holding the phone wrong.

     

    Also, I am having the audio stutter too, but I am just using the 3.5mm jack on the back of my iMac to some soundsticks HK.  So I'm not sure why it's so bad there either. 

     

    Either way, 10.8.2 should be out in September as it will need to coincide with iOS 6.  So I am hopeful that they fix this issue by then.  Apple has refused to let me get a copy of Lion, That I paid for, and reinstall it on my machines.  So the only other alternative is to go buy Windows.

     

    Their arrogance as a company is going to drive customers away.  I know my father has seen what I have dealt with recently and is likely going to buy a Samsung 9 series computer.  Customers talk and it's much more viral than any advertising campaign Apple can run on television. 

     

    Here's Hoping!

  • by bersimoes,

    bersimoes bersimoes Aug 24, 2012 9:44 AM in response to tttxx
    Level 1 (0 points)
    Aug 24, 2012 9:44 AM in response to tttxx

    I had to download Lion through p2p.. It is completely rediculous that apple doesn't provide you with any way to download the OS that works with your computer/mac (lion)

  • by Anthonysanto,

    Anthonysanto Anthonysanto Aug 24, 2012 10:48 AM in response to tttxx
    Level 1 (0 points)
    Aug 24, 2012 10:48 AM in response to tttxx

    ...I reset my PRAM.  Everything is working at the moment, knock on wood.   Maybe others could try this and see if we all get some positive results. 

  • by pepper_chico,

    pepper_chico pepper_chico Aug 24, 2012 10:53 AM in response to Anthonysanto
    Level 1 (0 points)
    Aug 24, 2012 10:53 AM in response to Anthonysanto

    https://discussions.apple.com/message/19183258#19183258

  • by idontcarejustletmein,

    idontcarejustletmein idontcarejustletmein Aug 24, 2012 12:59 PM in response to Anthonysanto
    Level 1 (5 points)
    Aug 24, 2012 12:59 PM in response to Anthonysanto

    Anthonysanto wrote:

     

    ...I reset my PRAM.  Everything is working at the moment, knock on wood.   Maybe others could try this and see if we all get some positive results. 

    Keep us posted on the results will ya.

     

    Personally I don't like messing with "internal settings", but if it fixes the problem ...

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