playClip

playClip.js

HTMLAudioElement.prototype.playClip  = function(startTime, stopTime) { 
  var video = this;
  var playTime = stopTime - startTime;
  this.currentTime = startTime;

  setTimeout(function(){ video.pause() }, playTime * 1000);
  this.play();

}

var audio = document.querySelectorAll('audio')[0]; // assume this is a reference to an audio file

// now you can do:

audio.playClip('52.893', '53.286'); // and it should play just that bit.