You can assign audio to a rendered clip as well as scrub audio in a clip or play it in real time. You can set where the audio starts on the clip by editing the original clip's audio. The audio will be in sync according to the starting point assigned. You can specify whether to play back native or context audio sources.

You can also scrub your audio context by using Ctrl (quick scrub) or Shift+Ctrl (real-time scrub) on any node.