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User profile for user: a brody
a brody
User level: Level 10
(83,065 points)

Applications have no audio after Mountain Lion upgrade.

by:  a brody
Last modified: Jul 29, 2012 8:49 AM
0 6876 Last modified Jul 29, 2012 8:49 AM

If after setting your System Prefences for Audio, your audio doesn't come out after upgrading to Mountain Lion, and resetting the PRAM doesn't help, The Applications -> Utilities -> Audio Midi Setup may need to be unmuted on the various channels of output.


Below you'll see an image of the Mountain Lion version of Audio Midi Setup.


User uploaded file

Note how there are checkboxes above the Configure Speakers on the bottom right, in a column under the word Mute. If any of those boxes are checked, or the Format is not 44100.0 Hz, you will limit the amount of audio out on various applications.

Make sure the frequency is 44100.0 Hz for maximum stereo enjoyment. If you have DTS Speakers that may change the frequency you'll need.

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