Sound stuttering after Mountain Lion install

There's no need to spam, but yes, that's the audio skipping this topic refers to.

Not really intended as spam. I just spend a lot of time using my Mac to record music, listen to iTunes (which is a big part of the reason Apple is where it is today btw) and watch video. These should be routine tasks for a computer in this day and age. It has become obvious to many after trying numerous other solutions, that the problem lies within Mountain Lion. Yet Apple, at least in my experience, refuses to acknowledge that there even is a problem, nor that a solution is even in the works. It's very disappointing, and has taken much the fun out of using my Mac away. I'm just trying to, with the help of other frustrated users hopefully, shed a little more light on the issue to expedite a fix. I'm sorry if you feel I was spamming.

@Anthonysanto Yes! This is exactly the problem!

I found a sort of a fix.I have the Retina Macbook Pro with the same issue. If i force the dedicated graphics card to run the Audio doesn't stutter. No idea why the graphics card has anything to do with the audio stuttering but seems to work. I use the app GfxCardStatus to force which chip to be running on. Only down fall is my battery dies in like 3 hours if i run on the nvidia card the whole time.

Hope apple fixes this soon.. and sorry if someone else already posted this, 15 pages was a lot to read.

@okitsugu sorry, but we're talking about iMacs…and they don't have 2 graphic cards…unfortunately 😟

@chriscologne Du hast ja geschrieben, dass das 10.8.2er Update unser Problem fixt. Konntest Du inzwischen neue Erkenntnisse gewinnen?

Thanks for the video example Anthony.

Same problem I had on my 2011 iMac i7 @ 3.4GHz, 1GB Radeon HD 6970, 16GB RAM. Running any audio/video apps on Mountain Lion i.e. Skype, Ventrilo, World of Warcraft, Diablo III, iTunes and others would become unusable due to the audio noise, video skipping as wells as curser stuttering, skipping and jumping across the display. In fact running simple apps like Textedit I would have issues with the curser behaving erratically. Which leads me to believe 10.8 was using basic systems resources ineffectively which only became more pronounced when trying to run bigger apps, i.e. video, games, etc.

My only working solution to fix this was to revert back to Mac OS 10.7 Lion after I tried everything to fix the issue, i.e. removing 3rd party apps., clean install of 10.8, zapping pram, switching RAM modules out, and remapping the solder points on the motherboard. (okay maybe I didn't re-solder the motherboard, but I thought about it).

Seems like Apple is choosing to ignore this issue which I find absolutely remarkable. No response from Apple as of yet… maybe they are trying to avoid giving everyone new Macs to fix the Mountain Lion issue?

All I know is I don't want a bumper cover for my iMac as a possible fix 😝

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I'm going to wait and see if 10.8.2 fixes the matter. Otherwise, I've noticed increased head by about 15 degrees Celsius higher under ML and the fans are still spinning very low. As a result, key areas on both my iMacs have now gotten stuck green subpixels that I didn't have prior to Mountain Lion. I'll be insisting apple replace both units as damaged caused by software. Of which I'm sure this will be a fun journey. It's not bad right now, but it's going to get worse if it keeps torching the hardware as 10.8 evidently does.

10.8.2 Just received another update. Maybe this version will fix the problem.😢

<Edited By Host>

Also experiencing this widespread problem.

imac 3,4ghz mid 2011, 12gb ram amd radeon 6970M. 10.8.1

Did feedback. This issue MUST be resolved immediately.

GUYS, i reply myself as long i found a solution to the problem (6 continous hours of playing music testing)

I did disk permissions, passed Apple hardware test, and nothing of this worked.

What i did: 1..Turn off the computer,removed the RAM, installed the 4 gb apple provided)

2.started the computer, ran itunes and no music glitch.

3.turned off the machine. Then I reinstalled the other 8 gb I bought aftermarket)

4. started it again.success. 2 hours of continous music :the problem has just gone for me.

Hope this fix serves for you all. Regards, peter.

i'll keep posting if it fails again.

Ok Dude, I just removed my 16GB OWC RAM and put the 4G stock RAM's back, let's see.

Ok, just got a handful of stuttering trying to play music on iTunes and even writting down this message, gonna put the OWC back.

Put my OWC back, now playing... oh, first one.

This solved nothing for me.

Early 2011 i7 MacBook Pro with 10.8.1

Good luck everybody.