There are many Troubleshooters built-in Windows, two of them, Speech and Recording Audio, can help you with microphone-related issues. In Windows 10, launch Settings and click Update & Security ...
You can click on the check box if you wish to recognize the non-native accents for the selected speech language. Next is to click on Get started in order to set up your microphone for speech ...
Commonly available microphones can be of good quality, but since they are invariably designed for speech or music, they need not have the flat or wide enough response and low noise figure demanded ...
In a video that has gone viral on social media, Stori confidently walked up to the microphone, which her principal had been using, and delivered a speech that caught everyone off guard.