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copied!<p>You can preload using <code><audio /></code> for newer browsers. Set <code>autoplay = false</code>. For older browsers that don't support <code><audio /></code>, you can use <code><bgsound /></code>. To preload a sound, set the volume to <code>-10000</code>.</p> <pre><code>function preloadSound(src) { var sound = document.createElement("audio"); if ("src" in sound) { sound.autoPlay = false; } else { sound = document.createElement("bgsound"); sound.volume = -10000; } sound.src = src; document.body.appendChild(sound); return sound; } </code></pre> <p>That will get the sound in your browser's cache. Then to play it, you can keep doing what you are doing with <code><embed /></code>. Or if you want to take advantage of HTML5 features, you can call <code>.play()</code> on the returned <code><audio /></code> element. You could even add a play method to the <code><bgsound /></code>:</p> <pre><code>function loadSound (src) { var sound = document.createElement("audio"); if ("src" in sound) { sound.autoPlay = false; } else { sound = document.createElement("bgsound"); sound.volume = -10000; sound.play = function () { this.src = src; this.volume = 0; } } sound.src = src; document.body.appendChild(sound); return sound; } </code></pre> <p>Then use it like this:</p> <pre><code>var sound = loadSound("/mySound.ogg"); // preload sound.play(); </code></pre> <p>The only caveat is FireFox doesn't support mp3. You'll have to convert your files to ogg.</p> <p>Working demo: <a href="http://jsfiddle.net/PMj89/1/" rel="noreferrer">http://jsfiddle.net/PMj89/1/</a></p>

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