old_contents: (function (exports) {
  	'use strict';
  
  	var hearingTest = HearingTest;
  
  	var app = new Vue({
  		el: '#hearing-test-app',
  		data: {
  			isPlaySound: false,
  			frequency: 1000
  		},
  		methods: {
  			changeFrequency: function() {
  				hearing.sound.frequency.value = this.frequency;
  			},
  
  			playSound: function() {
  				hearingTest.playSound();
  				this.isPlaySound = true;
  			},
  
  			stopSound: function() {
  				hearingTest.stopSound();
  				this.isPlaySound = false;
  			}
  		}
  	});
  }(window));
  
new_contents: (function (exports) {
  	'use strict';
  
  	var hearingTest = HearingTest;
  
  	var app = exports.app = new Vue({
  		el: '#hearing-test-app',
  		data: {
  			isPlaySound: false,
  			frequency: 1000
  		},
  		methods: {
  			changeFrequency: function() {
  				hearing.sound.frequency.value = this.frequency;
  			},
  
  			playSound: function() {
  				hearingTest.playSound();
  				this.isPlaySound = true;
  			},
  
  			stopSound: function() {
  				hearingTest.stopSound();
  				this.isPlaySound = false;
  			}
  		}
  	});
  }(window));
  
subject: Add exports.app