After the 10.8.2 update the audio has vanished but, the full functionality has been restored by just re-installing the AppleHDA in S/L/E.
Therefore, my advice is to back-up the patched AppleHDA before installing the 10.8.2. update and re-installing it after the update.
Edited by fantomas1, 22 September 2012 - 08:58 AM.
Please remember that you are in a public forum, a bit of courtesy is always welcome. It's always nice to start by saying "Hi" or "Hello" before asking a question or seeking help.