Mac OS X: No audio from certain multimedia content

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323ca

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Mac OS X: No audio from certain multimedia content
In this situation, system alert sounds still work, and does iTunes, but other applications may have no sound (audio output).

I need help fixing my issue/ any solutions?
 
Which OS X are you running? On what kind of Mac? I ask because there are different fixes for different OS X versions.
 
I'm having the same problem since installing 10.4.11 in my 1.5ghz PowerPC G4 Powerbook with 1GRam.

Recurring loss of audio when switching between apps. My biggest usage is - Final Cut Pro, iTunes, Quicktime, Ableton Live.

I have to restart to get the sound back. The next time I switch apps. it may or may not happen again, but I have to restart at least once a day since the OSX update.

I see there is more than once incidence of this recorded in the forums.

Thanks,
 
O.K. Do any of these steps to try a fix.

1) Reset your Pram

2) Download and install the 10.4.11 Combo Update(PPC) and run it. Let it restart twice.

3)Dump the DiVX QuickTime codec, /HardDrive/Library/Quicktime/ or /HardDrive/Users/YourUserName/Library/QuickTime/ .

note: If the problem is the DiVX Quicktime codec, use the free Perian instead to watch DiVX video files.


Good Luck.
 
Plus you may try to delete the following files (then restart) :
1) /Library/Caches/com.apple.Components2.LocalCache.AudioComponents
2) /System/Library/Extensions.mkext
3) /System/Library/Extensions.kextcache

If you can't delete the files just move them to the trash can, then restart. The restart may take longer but OS X should reset the audio system.
 
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