I manipulated effects on an audio track by moving points to fade some parts in and out and make other parts louder. I also used a volume slider to make the overall track louder. The document discusses adjusting effects and volume levels on an audio track.

1. Effect manipulation 5
I moved all the points to make some
parts of the track more faded and some
parts of the track louder.
I move this slider to make the
volume louder.