Volume
Use the Volume effect in place of the Fixed Volume effect if you want to render Volume before other Standard effects. The Volume effect creates an envelope for a clip so that you can increase the audio level without clipping. Clipping occurs when the signal exceeds the dynamic range that’s acceptable for your hardware, often resulting in distorted audio. Positive values indicate an increase in volume; negative values indicate a decrease in volume. The Volume effect is available for clips only.
Note:
You
can make most volume changes by using the fixed Volume effect. You
can apply this additional Volume effect if other effects (such as
Reverb or Bass) overly increase or decrease clip volume. You can
also fade the volume of one clip out while fading the volume of
the next up by dragging one of the Crossfade audio transitions from
the Effects view of the Task panel to the cut point between the
clips.