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 woodentopian,

    woodentopian woodentopian Oct 24, 2012 11:58 AM in response to Pink Mink
    Level 1 (0 points)
    Oct 24, 2012 11:58 AM in response to Pink Mink

    hi people. ive just had a call from applecare regarding this issue.(suprise!) ive been asked to work a little with terminal recording my activities and i send the data in. those of you with this problem as i have will know it doesnt always happen straight away computer is on, usually kicks in after a bit of time. of course it didnt do it whilst the lady was on the phone with me. it will though sometime v soon and i will record the data and send it in. im so glad they called though because i was beginning to think its not going to get fixed or something.

    theres hope for this.

  • by Crimguy,

    Crimguy Crimguy Oct 24, 2012 3:44 PM in response to tttxx
    Level 1 (0 points)
    Oct 24, 2012 3:44 PM in response to tttxx

    Gotta ask - new update with "general stability improvements."  Anyone apply the update and have miraculous results?  I'm not holding my breath. . . .

  • by LouFace,

    LouFace LouFace Oct 24, 2012 4:14 PM in response to Crimguy
    Level 1 (0 points)
    Oct 24, 2012 4:14 PM in response to Crimguy

    An American update by any chance? Over the pond all I got was a digital camera RAW compatability update.

  • by BarrettF77,

    BarrettF77 BarrettF77 Oct 24, 2012 6:14 PM in response to LouFace
    Level 1 (45 points)
    Oct 24, 2012 6:14 PM in response to LouFace

    I'd like to know if mountain goat works too.  A few posts confirming would be nice.  Tax it using a game or something and it will show up quickly. 

  • by Crimguy,

    Crimguy Crimguy Oct 24, 2012 6:40 PM in response to LouFace
    Level 1 (0 points)
    Oct 24, 2012 6:40 PM in response to LouFace

    I have no idea.  I don't see it either.  I saw it mentioned on Apple Insider, and it may only be applicable to the new macs.

    LouFace wrote:

     

    An American update by any chance? Over the pond all I got was a digital camera RAW compatability update.

  • by BarrettF77,

    BarrettF77 BarrettF77 Oct 25, 2012 3:11 AM in response to Crimguy
    Level 1 (45 points)
    Oct 25, 2012 3:11 AM in response to Crimguy

    The update is only for 2012 models.  Likely again apple hasn't been working on this issue and instead pushing for newer product.  Perhaps apple should just give me new computers that are compatible with OSX since they can't seem to make the other way around work. 

  • by FrederikY,

    FrederikY FrederikY Oct 25, 2012 3:41 AM in response to woodentopian
    Level 1 (0 points)
    Oct 25, 2012 3:41 AM in response to woodentopian

    woodentian, same here.

    But I got no answer, yet...

  • by LouFace,

    LouFace LouFace Oct 25, 2012 6:53 AM in response to tttxx
    Level 1 (0 points)
    Oct 25, 2012 6:53 AM in response to tttxx

    I thought I had my reportcrash (which causes the stuttering/crackling on my computer) narrowed down to skype so I reinstalled. Now it just bounces in the dock never actually opening up, using 99% of my CPU. I think it's time Apple recalled ML and refunded everybody as it doesn't appear anything works with it.

  • by MoogNinja,

    MoogNinja MoogNinja Oct 25, 2012 7:35 AM in response to tttxx
    Level 1 (0 points)
    Oct 25, 2012 7:35 AM in response to tttxx

    LouFace has it right.

     

    The new Maps was a failure and this Tim Cook guy had to issue an apology to the world. I knew maps was a failure within 5 seconds of opening it last week, they screwed up was previously working with short sighted "adding features". Very "windows" in its thinking.  Clearly they are either not testing anything, or just making very bad decisions.

     

    ML is the second big failure and a second apology to the world should be issued.

     

    Why is Tim Cook paid $350M to screw up was working?  No action is the best action sometimes.  Jobs knew that.

  • by MoogNinja,

    MoogNinja MoogNinja Oct 25, 2012 7:53 AM in response to tttxx
    Level 1 (0 points)
    Oct 25, 2012 7:53 AM in response to tttxx

    And to bring up a third failure this year:

     

    iCloud is so beta. Why do notes still not sync correctly with duplicate notes and bugs everywhere?  If it's not ready don't ship it.  The iDisk was a must-have thing artists were using for years, discontinuing that and iWeb, and we get i-freakin-cloud instead?

     

    Yeah nice one.  Why not throw in a free Zune so our lives can be total ****.

  • by Lyone,

    Lyone Lyone Oct 25, 2012 8:19 AM in response to tttxx
    Level 1 (0 points)
    Oct 25, 2012 8:19 AM in response to tttxx

    Hello at all,

     

    I was complaining about this on the first pages of this thread too, went back to Snow Leopard (upgraded to Lion in the meantime).

    I decided to give it another try (nearly 2 months passed since) - I'm using Mountain Lion for 2 weeks now (on the same machine) and it's working perfectly fine. Could be coincidence, luck, or maybe they fixed it without indication because they were ashamed

     

    I thought this was worth mentioning, after all the trouble this caused.

     

    Regards,

    Lyone

  • by chilblane,

    chilblane chilblane Oct 25, 2012 9:48 AM in response to MoogNinja
    Level 1 (5 points)
    Oct 25, 2012 9:48 AM in response to MoogNinja

    I subscribed to this thread to get updates on this bug, not to read a bunch of whining about Apple in general. If I wanted that I would go to Google+. Please stay on topic.

  • by Pink Mink,

    Pink Mink Pink Mink Oct 25, 2012 10:13 AM in response to chilblane
    Level 1 (0 points)
    Oct 25, 2012 10:13 AM in response to chilblane

    Well I've re-installed everything in Lion that I also had in Mountain Lion and everything working perfectly.

     

    I just don't buy the fact there's a hardware failure that's suddenly appeared on a stack of people's machines the moment they download ML!  It's just been a badly tested piece if software...that doesn't work properly!

  • by Grenerg,

    Grenerg Grenerg Oct 25, 2012 12:15 PM in response to tttxx
    Level 1 (0 points)
    Oct 25, 2012 12:15 PM in response to tttxx

    I have the exact same bug with a 12 GB iMac 3.1 GHz i5.

     

    The mouse always lag the same time as the sound lag, it's like if the whole imac was struggling to execute a simple task, but there is nothing that it shouldn't be able to handle easily. It happens e.g. when watching a youtube video, or a movie with quicktime, or playing sc2 (which is REALLY bad when it happens), etc...

     

    It is really software related, maybe we have a commun software that make this bug to happen but the more obvious reason would be because of ML (it was working fine with SL).

     

    Please if somebody figure this out, share.

  • by tzbikowski,

    tzbikowski tzbikowski Oct 25, 2012 12:27 PM in response to Grenerg
    Level 4 (1,956 points)
    Oct 25, 2012 12:27 PM in response to Grenerg

    Hi Grenerg,

     

    If you check my initial post here and the entry here: http://www.iternity.co.uk/phorum/read.php?4,220

    you will see that processor and RAM is not all you should be looking into - hardware wise.

    Faster hard drive in all seven of the cases I came accross solved the problem.

    I'm NOT saying that there is all good with ML (it is just heavy)  and that you should go and spend $100s to complete your $14 OS upgrade. Just sharing what has worked - which is a very expensive solution.

     

    Good luck,

     

    TZ

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