When I am recording my voice via microphone, recording volume is too low. How can I fix it?

If you are facing any problem with recording volume or an echo with your recording sound, you can change your Microphone settings using this dropdown to bring up this panel from Audio popup of the selected item.

 

This panel gives you option to choose your appropriate Recording device and adjust the microphone Volume. You can also check this "Reduce Echo" option to make your recording voice even clearer.