HOWLER.JS : MODERN HTML5 WEB AUDIO JAVASCRIPT LIBRARY

Howler.js is a JavaScript library that works with Web Audio API by default and falls back to HTML5 Audio when not supported.
Features:

• Defaults to Web Audio API
• Falls back to HTML5 Audio
• Supports multiple file formats to support all browsers
• Automatic caching for Web Audio API
• Implements cache pool for HTML5 Audio
• Per-sound and global mute/unmute and volume control
• Playback of multiple sounds at the same time
• Easy sound sprite definition and playback
• Fade in/out sounds
• Methods can be chained
• Uses no outside libraries, just pure Javascript
• Lightweight, 7kb filesize (2kb gzipped)

Direct Link Demo