To adjust the volume of a video added to the scene:

Step 1: Select the video.

Step 2: Click the Volume option on top, and increase or decrease the volume with the volume slider.

0 decibels on the slider represent the default volume of the added video.

Increasing it will boost the video volume beyond its normal level, and decreasing the slider will decrease the volume by the number of decibels displayed.

And to mute or unmute the video, simply click on the volume 🔊 icon.

Clicking on the Advanced option opens up the left volume panel, allowing us to add an in and out fade, and adjust the volume balance to pan left or right.