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My Windows 7 system makes an intermittent ding sound (like a single chime, or bell). I don't know which process does it. So, my question is: Is there software out there that can tell me which processes are currently sending output to the sound device?

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Did you check your clock gadget? –  Mehper C. Palavuzlar May 5 '10 at 21:36
    
@Mehper: What does the clock have to do with random sounds? –  Joey May 5 '10 at 22:03
    
@Johannes: Some clock gadgets make a sound every 15 minutes. –  Mehper C. Palavuzlar May 6 '10 at 6:17

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up vote 9 down vote accepted

Fire up the volume control which will list all applications that recently made sounds. If you have it open while the sound plays you can also see which application is doing it.

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More specifically, after opening the volume control from the system tray, click "Mixer" to view all applications. Resize it so all applications appear in view, and wait. The app causing the ding will be indicated by a brief green peak. –  Paul Lammertsma May 5 '10 at 22:10
    
Because of your advice I was able to figure out what the sound is, as well. It is the same sound that the sound mixer issues when you adjust volume levels. In my case it comes up randomly from some other event, but I think now I'll be able to track which one at some point. –  harschware May 5 '10 at 22:27

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