What is the primary function of the volume fader on a Pro Tools track?

• A. To adjust the track's stereo width
• B. To control the input level
• C. To pan audio to the left or right
• D. To limit the maximum output level

Answer: (B)

Controlling the track's loudness in the mix is the main function of the volume fader. It sets how strong the track’s signal is as it leaves the track and heads toward the master bus, after any input gain and inserted plugins. This lets you balance that track with others and shape the overall level of the mix. You can also automate the fader to ride levels over time. It doesn’t adjust the input level at the source—that’s handled by the track’s input gain—and it doesn’t determine stereo width—that’s done with panning. It also doesn’t cap the signal; limiting or a ceiling is handled by a limiter or the master output settings.