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 pepper_chico,

    pepper_chico pepper_chico Oct 21, 2012 9:47 AM in response to pepper_chico
    Level 1 (0 points)
    Oct 21, 2012 9:47 AM in response to pepper_chico

    Sorry, lost the original tweet.

    Here's a copy for anyone willing to retweet: https://twitter.com/pepper_chico/status/260059282739978240

  • by Lvivske,

    Lvivske Lvivske Oct 21, 2012 9:48 AM in response to pepper_chico
    Level 1 (8 points)
    Mac OS X
    Oct 21, 2012 9:48 AM in response to pepper_chico

    please stop spamming this discussion with off topic crap, some of us are trying to find a solution here

  • by FrederikY,

    FrederikY FrederikY Oct 21, 2012 12:03 PM in response to Lvivske
    Level 1 (0 points)
    Oct 21, 2012 12:03 PM in response to Lvivske

    sorry, but WE cannot find a solution…

    this is a deep OS bug, we cannot do anything!!!

    Apple has to do something…

  • by Pink Mink,

    Pink Mink Pink Mink Oct 22, 2012 12:25 PM in response to FrederikY
    Level 1 (0 points)
    Oct 22, 2012 12:25 PM in response to FrederikY

    I'm finally reinstalling Lion as we speak.

     

    What a shambles.  Had to buy another external hard drive a I didn't have enough room to backup everything I thought I might need once I've reinstalled the OS.

     

    So my £13.99 investment has caused me nothing but headaches for three months and I've ended up spending £130 on a new drive to help me get rid of the cack that Apple supplied!

     

    Ok...4 minutes until installation complete....please let it work!

  • by Pink Mink,

    Pink Mink Pink Mink Oct 22, 2012 1:03 PM in response to Pink Mink
    Level 1 (0 points)
    Oct 22, 2012 1:03 PM in response to Pink Mink

    I've reinstalled Lion...it's working...and I'm listening to MUSIC...it's amazing!

  • by BarrettF77,

    BarrettF77 BarrettF77 Oct 22, 2012 1:13 PM in response to Pink Mink
    Level 1 (45 points)
    Oct 22, 2012 1:13 PM in response to Pink Mink

    You've runied Apple's grand plan.  This feature was to be included in OSX 10.9!!!  Oh well.

     

     

    Glad you got it Pink.  I've been back on 10.7 for a couple weeks. It's definitly nice, but I'm sourcing copies of Windows 7 now as I want more control over things.  Giving Apple full control is obviously ill advised these days.

  • by idontcarejustletmein,

    idontcarejustletmein idontcarejustletmein Oct 22, 2012 1:20 PM in response to idontcarejustletmein
    Level 1 (5 points)
    Oct 22, 2012 1:20 PM in response to idontcarejustletmein

    Heh. My audio dropping problem is fixed!

     

    VLC auto-updated to 2.0.4 (from 2.0.3) and the problem when away. LOL. So it wasn't Apple's fault after all.

     

    We can't even be sure we are suffering from the same problem to be honest, just that the symtoms are the same. Good luck to the rest of you.

  • by Pink Mink,

    Pink Mink Pink Mink Oct 22, 2012 1:37 PM in response to idontcarejustletmein
    Level 1 (0 points)
    Oct 22, 2012 1:37 PM in response to idontcarejustletmein

    Fingers crossed for you that your troubles are over. Mine wasn't just stuttering sound, I'm a photographer and work with Photoshop about up to 4 hours each night, I was getting 1 or 2 shutdowns a night and mouse lags every 45 minutes or so, nothing yet with Lion!

  • by Pink Mink,

    Pink Mink Pink Mink Oct 22, 2012 3:42 PM in response to Pink Mink
    Level 1 (0 points)
    Oct 22, 2012 3:42 PM in response to Pink Mink

    All good so far in Lion.  I've certainly been working Lion harder tonight than I have been with Mountain Lion over the last three months and not a hint of mouse lag, shutdowns, stuttering sound or anything else that makes me cry!

  • by Pink Mink,

    Pink Mink Pink Mink Oct 23, 2012 11:42 AM in response to Pink Mink
    Level 1 (0 points)
    Oct 23, 2012 11:42 AM in response to Pink Mink

    We have a famous hypnotist here in the UK called Derren Brown, I'd like him to erase my memory for the last three months so I can remember what it's like to love Apple.

     

    Lion still working like a dream...! Why did I ever 'upgrade'...?!

  • by Anthonysanto,

    Anthonysanto Anthonysanto Oct 23, 2012 10:33 PM in response to tttxx
    Level 1 (0 points)
    Oct 23, 2012 10:33 PM in response to tttxx

    Been working with someone higher up in Apple.  I've been sending him capture data of my system at recorded at the time of errors in the audio.  He recently got back to me and told me that their are memory leaks being caused by Safari, and also The Dictation (found in the System Prefrences)  He told me to try using Firefox instead of Safari for a while, and shut the Dictation off.  If the errors correct themselves then this issue has to do with these applications.  If not, he is going to have me re-install the OS on a clean drive.  Within the last year I have gone from Snow Lep, to Lion, to M.L.....I am wondering if reminants of past OS's have caused this problem.  I do not think it is happening to all people who are using ML. 

  • by Reactor-Core,

    Reactor-Core Reactor-Core Oct 23, 2012 10:56 PM in response to Anthonysanto
    Level 1 (0 points)
    Oct 23, 2012 10:56 PM in response to Anthonysanto

    Thanks for the update Anthony, it is appreaciated. Please keep us updated on any developments.

     

    -Reactor

  • by Anthonysanto,

    Anthonysanto Anthonysanto Oct 23, 2012 11:02 PM in response to tttxx
    Level 1 (0 points)
    Oct 23, 2012 11:02 PM in response to tttxx

    This sounds goofy, but let's all stop using Safari for a while and try a different browser.  I read another thread which complains about Safari's problems with RAM.  I've been using firefox today and listening to music for over an hour without a skip or studder.  Sorry about all of the mispelled words and errors in my sentences in my above post.

  • by Victor In Munich,

    Victor In Munich Victor In Munich Oct 24, 2012 2:42 AM in response to Anthonysanto
    Level 2 (151 points)
    Mac OS X
    Oct 24, 2012 2:42 AM in response to Anthonysanto

    I would be very surprised if that was the cause. I have never used voice dictation. Tbh I don't even know if its enabled or not. I also get the problems on a system that was greasy boot and safari not used.

     

    Anyway my iMac is now on its way to Apple engineers to be ripped apart. The big question in my mind is what they will replace it with as my model is no longer in the store. They did say " the same or better".

  • by Pink Mink,

    Pink Mink Pink Mink Oct 24, 2012 2:51 AM in response to Victor In Munich
    Level 1 (0 points)
    Oct 24, 2012 2:51 AM in response to Victor In Munich

    I never use Safari or Dictation either. I only ever use Firefox.

     

    I just can't see how it's hardware related seeing as the same computer works 100% perfectly now I'm back on Lion.

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