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How to get the background noise of microphone?

How to get the background noise of microphone?
  1. How can I make my microphone less sensitive to background noise?

How can I make my microphone less sensitive to background noise?

Go to Settings > System > Sound. Under Input, make sure your mic is selected, then click Device Properties. Select Additional device properties. In the Levels tab, increase or decrease the Microphone (sensitivity).

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