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Blog / 2010 / January / 24

Sound in JavaScript

January 24, 2010

I had a need to play some .mp3s when certain events happened in a web page. I managed to achieve this with an excellent open source project called Sound Manager 2.

This project embeds a flash movie in the page (with no visual component) and uses that to play the sounds.

Example

First embed the javascript required:

<script src="/site_media/soundmanager/soundmanager2.js"></script>

Here's some example setup code:

var snare = null;
var bassdrum = null;
soundManager.url = '/site_media/soundmanager/soundmanager2.swf';
soundManager.debugMode = false;
soundManager.onload = function() {
  snare = soundManager.createSound({
    id : 'snare',
    url: '/site_media/sounds/snare.mp3',
    volume: 50
  });

  bassdrum = soundManager.createSound({
    id : 'bassdrum',
    url: '/site_media/sounds/bassdrum.mp3',
    volume: 50
  });
}

Once this code is done, then to play a sound simply call the play() method, ie:

snare.play();

Tags: javascript sound flash