A WebRTC audio channel.

audio.js

function streamSuccess(stream) {
      window.AudioContext = window.AudioContext || window.webkitAudioContext;
      var audioContext = new AudioContext();

      // Create an AudioNode from the stream
      var mediaStreamSource = audioContext.createMediaStreamSource(stream);

      // Hear thyself!
      mediaStreamSource.connect(audioContext.destination);
}