Sound stuttering after Mountain Lion install

I agree. When the issue first started for me (very recently) I searched for 'sound/video stuttering Mountain Lion' and 'audio crackling Mountain Lion'. There was no freezing involved.

What I can sum up after 10.8.2: The problem became a lot more calculateble for simple things like iTunes (only one stutter every ≈10 minutes, still not acceptable), but when playing a game while listening to music (minecraft, xonotic, …) still causes very hard stuttering.

AND my iMac became a lot cooler: You can touch it/him now without get fried hands!

what's up with the new discussion that's locked?

bms82, which new discussion?

Pink Mink & pepper_chico, and others:

Has anyone started anything on Twitter yet? Thanks.

why is what locked?

Last night out of frustration I booted to the recovery disk on my iMac and reinstalled the OS 10.8.2. It took an hour to download and another 30 to install. I didn't have much time to play with it last night. Today when I got home I started listening to my AIFF library at 3:30 p.m., and now have been listening until 6:29 p.m. I have not heard one stutter. I've gone wide screen, ripped two CD's, used Timemachine to back up my iMac (large back-up to an external Firewire hard drive and a second to a network hard drive after the new copy OS was installed). So far no stuttering. I won't declare it fixed. Maybe I just got lucky? We will see how long this lasts.

Jazzman

1. did you erase/format the drive before installing 10.8.2?

2. are there any apps, plugins, etc. that you *didn't* put back?

3. Is it still working perfectly w/o stutters in audio or video, even full screen?

Thanks.

I still think it is the hard start, or cold boot of the iMac that makes it perform for about an hour or more without the audio trouble. BUT sooner or later it will catch up and the problem starts again! Minimize iTunes, pause a DVD, they all help but only for a few seconds! Restart and it may take minutes, Reboot and it may take an hour but the problem still happens! I want to reinstall Mountain Lion, but I don't want to put up with this again!

I've just had over 4 lazy hours of iTunes movies and Elgato TV watching and never had a Single problem! All because I went BACK to the CLONE of LION I made before upgrading to Mountain Lion!

I hope enough Key words we generate on this thread will lead Someone at Apple to find out how bad this is and fix this bloody mess so we can enjoy the benifits of the new OS without any compromises! Macs are Video and Audio based PCs so why have some of the latest Generation machines failed using the latest Operatiing system!

My first stutter occurs 30 seconds after boot up.

After clearing both my caches (~/Library/Caches and /Library/Caches) and restarting OSX my sound stutter seems to be gone... (2011 27" iMac)

Had a crash this morning. Wasn't doing anything, I was away from the computer and came back to find the login screen then a message to advise it restarted due to an error.

I've downloaded Onyx and have cleared everything down. I've left the computer running so we'll see if it suffers another crash when I get back home later.

I advocate to NOT use these tools!

They often destoy more than they help!

dcollet.seattle

Jazzman

1. did you erase/format the drive before installing 10.8.2?

No I did not wipe the drive, just reinstalled the OS via the recovery drive (which I still think downloaded a fresh copy)

2. are there any apps, plugins, etc. that you *didn't* put back?

No-But working with Apple Care I had earlier shut down Drive Genius 3, a Western Digital HD monitor in the menu items and reset SMC. My issues continued until I did the simple OS re-install. Maybe the reinstall wiped out any hidden processes they were still running?

3. Is it still working perfectly w/o stutters in audio or video, even full screen?

Yes, it worked the rest of the night running for about 6-7 hours total. I don't claim to have the total solution. I'm as concerned as eveyone else that this is a Mountain Lion issue that Apple needs to address. I'll be reading everything that comes out of this thread and report to the group if I get the issue again.

I'm still holding my breath that the reinstall of the OS is just a temporary fix like a reboot. But even reboots didn't originally fix my problem. Good luck everyone!

THIS IS NOW GETTING BEYOND A JOKE!!!

***** APPLE SORT THIS PROBLEM OUT NOW *****

***** APPLE SORT THIS PROBLEM OUT NOW *****

TWO SYSTEM CRASHES TODAY - both when the computer was idle (I was not performing any process on it, I was away from my computer.