pitched squeak when using a laptop

  EVGENIY 13:40 04 May 2015
Locked

In time of use my laptop TOSHIBA SATELLITE L500 12T I heard the sound of the rising.In time of use it repeated periodically.without battery sound is very weak while using the keyboard and mouse.

  rdave13 14:30 04 May 2015

It could be your microphone and speakers interference. To check, right click the sound icon in notification area. Select recording devices. In the box that opens double click on 'internal microphone'. That should be the default. In the opened window select the levels tab. Under Microphone array you can either drop the recording sensitivity or, just to test, click on the speaker icon to disable for now. It should show a red circle with a diagonal line. Drop the microphone boost to 0.0db. If that was the problem then you can go back to the recording properties box and adjust accordingly so as not to get the interference but have the mic still available.

  EVGENIY 15:56 04 May 2015

Thank you very much Your council solved the problem.

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