This setting can also be used to amplify your voice to reach a larger audience in the room even if you speak softly.
The same method can be used if you use headphones and want to listen to your voice through a headset using the microphone. The only difference then is that Windows has automatically selected the headphones as the default audio device, and you set them rather than the built-in system speakers.
Many users don’t know this feature exists, but it actually exists in Windows 7, Windows 8.1, and Windows 10.
Here’s how to use your computer’s built-in hardware to hear yourself through the microphone. You may need to adjust the volume to avoid howling feedback in the speakers.
Right-click the small speaker icon at the bottom right of the taskbar and select Sound.
Switch to tab Recording and then double-click the microphone that is marked as default (green tick).
Switch to tab Listen and put a check mark next to Listen to this device.
Also make sure that Default device for playback is selected at Play with this device.