Disabling Microphone playback
You should be able to turn off microphone playback through the speaker’s Control Panel settings:
- Right-click the speaker icon in the notification area
- Select Playback devices
- Right-click the output device
- Select Properties
- Click the Levels tab
- Find the Microphone device
- Click the speaker icon next to the microphone to mute it
- Click
[OK]
in the two dialog boxes
For Windows 10:
open Sound settings
click on App volume and device preferences
set the Output to Realtek Digital Output (or whatever output device you're using).