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Centra Microphone Feedback

Wednesday - March 12, 2008
We've had a few calls regarding microphone feedback problems in Centra events.  The issue seems to be with laptop users and the built-in mic.  If you are using a laptop and an external microphone when connecting to a Centra conference, the built in mic is picking up your speakers and causing the problem.

The fix is simple.

  1. Go to Start » Control Panel » Sound.
  2. In the window that opens, click the Recording tab.  You should see icons for your built-in and external mic, as well as icons for "Line In" and "Phone Line."
  3. Right-click the built-in microphone icon.
  4. Click Disable.  The icon should disappear or be marked with a red "X."
  5. If both of your microphone icons disappear, right-click one of the remaining icons and choose, Show Disabled Devices.  Both microphone icons should reappear.
  6. Right-click the external microphone icon and choose Enable.  This should take care of your problem.

If you are still having trouble, give me a call and I'll walk you through the process.

If you are trying to use the built-in mic for Centra, I advise you to go ahead and get an external mic, or a headset, and complete the steps outlined above.  The mic and the speakers on the laptops are just too close together to function properly.

Steve Giesel

Last Revised: 08/04/08



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