No sound after OSX 10.7.4 update

I have the same problem, with10.7.4, I restore in 10.7.3, everything was okay, but after uninstall BOOM, no sound.

Here a copy of mail to boomapp

Hi,

Hope you' re understand my english.

So,

I uninstall like you said, I must said I 'm in 10.7.4, and after your explications , I restart, but the system made a very long time after the desktop appear to control all the system like see in finder, or preference menu etc.... and the sound was grey. Okay I 'm seach on the web, and find this https://discussions.apple.com/thread/3998368?answerId=18702669022#18702669022&tstart=0#18702669 or this https://discussions.apple.com/thread/3943530?start=0&tstart=0.

Quictime X and 7 are broken too, video on safari broken too, and if I play video with VLC I can choose External speaker and sound on, but sound by an another program play only with internal speaker.

Some program system like mail have some trouble. So I decide that enought.

I restore 10.7.3 and so with BOOM, Everything was okay, quictime right, different source sound too, the system start normaly and no time to founction after the desktop on.

But yes there a BUT, I decide to uninstall BOOM Like you said, and after restart, no sound no sound internal or external, no vlc sound, the desktop start normaly but the system it not complety upload, and quicktime is off to play (error -101). So I must reinstall every think.

Thanks

Best Regards.

Hi majesticdesign,

Remvoing com.apple.audio.DeviceSettings.plist and other files, didn't work for me.

Restarting may iMac several times (2-5) sometimes, sound comes back and work until shut down.

But After Effects CS6 not working any more (freezes on startup).

<<<-For people who going to update->>>

if your Mac is working good and fast enough,

if you can play music,

if you can watch movies,

if you can read and write mail,

if you can surf websites,

if your system is stabile,

if you have any problems,

if there is no need to update

PLEASE, BELIEVE ME, DO NOT UPDATE !!! NEVER !!!

NO MOUNTAIN LION, NO GOLD FISH OR OTHER ****... STAY AS YOU ARE AND YOU'LL HAVE NO PROBLEMS.

Worked for me...

Worked for me too, thanks a lot majesicdesign.

Thank you majesticdesign,worked for me too! 100%!!

yeap done this.. but as soon i install /update the 10.7.4.. the sound gone again...

I had the same issue with the sound. Here's what I found out... hopefully this is the root cause. There seems to be a problem with the last Java update provided with OS X

To find this problem I had the following hardware replaced (Hard Drive, I/O board connected to headphone jack, Logic Board) and a complete re-install of the OS. All this was done over the last 3 weeks, but the problem kept coming back. So after extensive debugging, here's what I found, I hope this helps

1) go to system preferences -> software update -> installed software and verify you have Java for OS X 2012-004

You probably got this update from one of the previous OS X upgrades

One of the applications you run uses the Java outlined above. There is an issue that gives the following error in the Console (Finder -> Applications -> Utilities -> Console)

You can find more details on this error if you search the key words from the string above. There are many users complaining about this java error, however no one is reporting sound problems

If you can find which application gives this error (start with a clean log file in console, restart the machine and open one application after another and look in the consle)

My problem gets fixed if I close the application that gives the error above, and immediately the sound comes back. I run ThinkorSwim Client from TD Ameritrade which causes this issue.

Each one of you might have a different app that causes this... so it's time consuming but worth finding this

Unfortunately there is no fix, except to close the problem app. Hopefully the next OS X upgrade/patch fixes the Java bug and resolve this issue

Please post if this helps anyone

Thanks majesticdesign! worked for me too. I didn't have the problem with the update though. It seamed to come up when I unplugged my external speakers from a mac pro..

I found this:

06/07/12 19:27:13,131 com.apple.audio.coreaudiod: Jul 6 19:27:13 mac-pro.home coreaudiod[191] <Error>: FIXME: IOUnserialize has detected a string that is not valid UTF-8, " �c".

but I don't find the coreaudiod file in the mac

THANK YOU!!! Worked perfectly. You saved me some serious cash!!!

Thanks a lot majesticdesign. This has just started happening to me in last week and is a nightmare. I'm a video editor so sound is essential! Didn't even have to reboot, just deleting those files and immediatly sound is back.

majesticdesign:

Worked great! Thank you.

I can confirm what majesticDesign says: that a double restart solved the issue. Fyi, I couldn't play youTube vids prior to the restart, and the whole thing was a little slow. Tut tut Apple, don't ship with so many bugs...