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A Javascript library for working with Audio. Features a simple interface as the front end to multiple audio APIs via a plugin model. Currently supports WebAudio, HTML5 Audio, & a Flash fallback.

added SoundInstance.startTime getter / setter

updated TestSuite to include instance startTime and duration sliders
latest commit 62944fb480
OJay OJayRobinson authored


SoundJS is a library to make working with audio on the web easier. It provides a consistent API for playing audio in different browsers, including using a target plugin model to provide an easy way to provide additional audio plugins like Web Audio, and a Flash fallback. A mechanism has been provided for easily tying in audio preloading to PreloadJS


createjs.Sound.addEventListener("fileload", handleLoadComplete);
createjs.Sound.registerSound({src:"path/to/sound.mp3|path/to/sound.ogg", id:"sound"});
function handleLoadComplete(event) {"sound");


Built by, and released for free under the MIT license, which means you can use it for almost any purpose (including commercial projects). We appreciate credit where possible, but it is not a requirement.

Support and Resources



The core API for playing sounds. Call, ...options), and a sound instance is created that can be used to control the audio, and dispatches events when it is complete, loops, or is interrupted.


A controllable sound object that wraps the actual plugin implementation, providing a consistent API for audio playback, no matter what happens in the background. Sound instances can be paused, muted, and stopped; and the volume, pan (where available), and position changed using the simple API.


The default, built-in plugin, which uses Web Audio APIs to playback sounds. Note that WebAudio will fail to load when run locally, and the HTML audio plugin will be used instead.


The fallback built-in plugin, which manages audio playback via the HTML5 tag. This will be used in instances where the WebAudio plugin is not available.


An additional plugin which uses a flash shim (and SWFObject) to playback audio using Flash. You must manually set up and register this plugin.

Documentation and examples

Have a look at the included examples and API documentation for more in-depth information.

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