One of the most common effects you may want to use for a video is the creation of background music for the production. That will involve two audio tracks, where one of them is the voiceover; the other will be your background music.
The idea here is to make your background music start with a standard volume setting, and when the voiceover begins, you will lower the music volume to make it become just a faint sound.
How do you create such an effect? In Blender, you will make that effect by using the same procedure we already used in Chapter 3, Using Properties to Enhance Video.
Assuming you have a video that has your voiceover starting at frame 220 from a total of 885 frames, you can select the track representing ...
