I saw this problem when listening to a WMA webstream for a few hours. The audio output suddenly stopped and CPU usage of audiodg.exe was very high.

There are several ways so solve it:

* (Disable all microphones)

(Didn’t work in my case, I got a bluescreen – but it is worth a try on other systems.)

* Disable sound enhancements of all sound cards

Control Panel -> Sounds -> Double click on your sound card(s) -> Disable all enhancements. According to several forum threads, you shouldn’t hear a difference of sound quality.

You can also try to deactivate the 2 checkboxes in the last tab (exclusive mode).

* Install MS Hotfix 1

http://support.microsoft.com/kb/2670667/en-us

* Install MS Hotfix 2

http://support.microsoft.com/kb/981013/en-us

* Update (or change) drivers of your sound card(s).

* Disable SystemSoundService process

Open Planned Tasks -> Microsoft -> Windows -> Multimedia. Stop and deactivate the process “SystemSoundService”.

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