To ensure that your audio devices are functioning correctly, you can test the audio devices used for video calls and playing alerts.
To test audio devices:
Click Test Audio Devices.
Speak into your microphone in a normal voice.
When you speak, the indicator shows that the microphone is picking up your voice. For best results, try to speak so that the color bar shows green most of the time. You may need to move the microphone farther away to do this.