Today I noticed something unusual on my MBP's audio.
When I played some music on youtube today, I noticed that something was different. The sound is noisy, like when in a car, you put the volume very high, it starts distorting. But, on low volume on my Mac, it creates the same effect.
Anyone with the same problem? Anyone knows how to fix it? It didn't do it earlier… Maybe some SO update messed up the audio drivers/codecs?
Update:
I performed a PRAM and NVRAM reset and a SMC reset and it didn't solve anything.Also, deleted the *.plist files in
~/Library/Preferences/Audio
as suggested here and again, it didn't solve anything.I'm getting desperate…
Update2:
Got in recovery mode, startedDisk Utility
and used the optionsFix disk
andFix disk permissions
and once again, it didn't solve anything.
Best Answer
If all sound from your machine is distorted there may be a hardware problem with your Mac's speakers.
To test, I would reinstall Lion from your recovery partition and see if it is the same. If you still have problems with the sound you should take your Mac to an Apple Authorised Service Provider.