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Just recently, my Sennheiser PC360's microphone stopped working. Yesterday Night, it was working 100% fine. Muting correctly, un-muting, volume boosting, etc. I woke up this morning, and got into a skype call (After not changing a single setting on my computer), and it wasn't working. I tried mumble, and it didn't work there either. After that, I checked my sound devices and found out it was plugged in, but not responding to my voice. I unplugged the headset, and it correctly showed that it was unplugged. So, a quick run-down:

  • Sennheiser PC360 Headset suddenly stops working after a few hours of sleep.
  • Software is up to date
  • I can hear the mute sound when I raise and lower the microphone arm
  • Windows Sound Device Manager shows that it is plugged in
  • Unplugging the headset correctly shows it is unplugged
  • Windows Sound Device Manager shows that the microphone isn't receiving any input
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Have you tested it on a different computer to determine if the mic is defective? –  Moses Oct 19 '13 at 21:54
    
If you use System Restore back to a point when it was working, does it work? –  Ƭᴇcʜιᴇ007 Oct 19 '13 at 21:58
    
Spilled something on mic? I once accidentally sneezed into mine and it never worked thereafter! :D –  tumchaaditya Oct 20 '13 at 7:07
    
@techie007: That's a big leap for stupid microphone! –  tumchaaditya Oct 20 '13 at 7:08
    
@tumchaaditya Going to a System Restore point from back to a day to two ago isn't really a big deal. Really though, he should try it on another system first. –  Ƭᴇcʜιᴇ007 Oct 20 '13 at 21:33

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