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Another fix for broken Adobe Flash sound
Authored by: noworryz on Jun 30, '07 01:01:19PM

I spent hours before I fixed this problem, which shows itself as silent (no sound) videos when watching YouTube and other sites using Adobe Flash 9.

Before you do the following, you should make sure, using /Applications/Utilities/Audio MIDI Settup, that the audio devices, audio output rate is set to 44100 Hz. Ignore this comment you do not have an admin account and one or more non-admin accounts on your Mac. Also ignore this comment if, when you play a video, settings will "stick," i.e., if you can right click on a Flash video window, choose "Settings...", change them, and find the same settings again if you reload the page.

Procedure for restoring sound

First you must uninstall all traces of "Flash," "Macromedia," and "Shockwave" in the system library and each user's library. Look in the folders below.

System library:
/Library/Application Support
/Library/Internet Plug-Ins

Each user's library:
home of user/Library/Application Support
/Library/Internet Plug-Ins
/Library/Preferences

Then you must go to System Preferences/Accounts and temporarily give every user administrative privileges; i.e., check the "Allow user to administer this computer" box.

Then you must log on as each user and install Flash Player 9 using Adobe's "Install Flash Player 9 OSX" application.

Then you can go back to System Preferences/Accounts and remove administrative privilege from users that shouldn't have it.

That's it. It seems that Adobe's installer doesn't work correctly if the user doesn't have administrative privilege. The result is that users are unable to raise the volume setting above silent.

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