Hello there! I'm glad to help you today!
Are you using your computer's built-in microphone?
May I ask what is the make and model of your computer? If you don't know the make and model or it's a custom, may I ask if you know the make and model of the motherboard?
Press Windows + R, type msinfo32, and hit Enter.
In the System Summary section, please provide me the three things below.
BaseBoard Manufacturer
BaseBoard Product
BaseBoard Version
If you're not using the built-in microphone, may I ask what is the make and model of your headset/microphone?