Odd sound issue

Discussion in 'OS X Mountain Lion (10.8)' started by mk1, Jul 11, 2012.

  1. mk1 macrumors newbie

    Jul 11, 2012
    Just installed ML on my 2012 13" Macbook Air and I'm having issues with the sound.

    Basically, it just sounds like everything is 'low quality'. As if you're listening to speakers with blown tweeters, or streaming a video at low bandwidth.

    I first noticed the system sounds were sounding a little dull. Then I tried youtube, iTunes, mp3s with finder preview, and they all had the same result.

    Plugged in headphones and they sounded fine though.

    First I installed ML as an update and then I done a clean install hoping to eliminate this problem.

    Is this a software problem or have I fried my laptop's speakers somehow?

    Additional info - Last time I listened to something was about 12 hours before I installed ML. Everything worked fine.. left my laptop on overnight, woke up and it was dead. Charged it up, installed ML and noticed this issue while I was deleting some folders. I remembered the trash can system sound being a little more crisp. And then I realised everything was sounding crappy...

    If someone could help me with this issue, I'd greatly appreciate it.

  2. mk1 thread starter macrumors newbie

    Jul 11, 2012
  3. arashb macrumors 6502

    May 3, 2009
    For me it's been fine, but I'm on an MBP. Only thing I can suggest is to dual boot into Lion and see how the sound is on that. Then go from there
  4. mk1 thread starter macrumors newbie

    Jul 11, 2012
    Ok so it turns out I cannot downgrade on this Macbook Air for some reason. When I try to enter the os x lion setup through the startup menu, a circle with a line on it pops up (like the no smoking symbol).

    I tried two different guides to making the bootable os x lion installation usb (7.3), which use pretty much the same method that I used to install ML, and wasn't able to start the installer. :confused: :confused: :confused: :confused:

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