white noise generator in javascript

white-noise-gen.js

var whiteNoiseGen = function(){
  var bufferSize = 4096; //Math.pow(2,13); //between 8 & 14

  //make this a global var so it isnt garbage collected
  whiteNoise = context.createScriptProcessor(bufferSize, 0, 2);
  whiteNoise.onaudioprocess = function(e) {
    var outputBuffer = e.outputBuffer;
    for (var channel = 0; channel < outputBuffer.numberOfChannels; channel++) {
      var outputData = outputBuffer.getChannelData(channel);
      for (var i = 0; i < bufferSize; i++) {
        outputData[i] = Math.random()*2-1;
      }
    }
  }