title: Syncing HTML5 <video> with <audio> playback
body: <p>I am having  track from one source, mute, and I'd like to play background music over it using  element. The tracks contain some time critical elements.</p>
  
  <p>What would be the options to sync these two different media players in HTML5 / Javascript?  would give the master clock as it audio playback is very time sensitive - loosing video frames now and then is not critical.</p>