You can test your speakers and microphone and adjust the volume before a meeting to find the best quality. You can suppress background noise with different settings from low to high.

Adjust Volume: If the above solution doesn’t improve quality, increase the microphone volume. Open the Control Panel, select “Hardware and Sound,” then click on “Manage audio devices.” ...

To adjust the volume on a Google Hangout call, you'll need to adjust the volume of the device you're listening on.

Dear arsians,Today i have bought a headset with microphone (logitec precision) and the microphone volume is not high enough for people to be able to hear me on ventrilo/teamspeak. It is only ...

You can use a third-party app to increase your Android phone's volume beyond 100% if you need a little sound boost.

There’s no option that you can manipulate to increase the sensitivity of a Note 5 microphone. Either you accept how your phone’s microphone volume is right now, or have the phone replaced.