How to make HTML5 sound available?

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10

I would like to play an audio on a website. You probably need to use the tag <audio> with parameters, right? And then to press play?

html5 html5-audio

2 answers

9

<audio controls>
  <source src="meusom.wav" type="audio/wav">
  <source src="meusom.ogg" type="audio/ogg">
  <source src="meusom.mp3" type="audio/mpeg">
  Seu navegador não suporta áudio HTML5. :(
</audio>

Optional attributes:

  • autoplay = Start playing the audio automatically;
  • controls = Shows the controls (volume, pause/play, etc);
  • loop = sets whether the audio should restart every time it ends;
  • preload = sets whether audio should be loaded along with page reading

1

Here is a code with a really cool sound meter. You just change the audio.src in the Javascript code and puts the name of your audio. 

<!doctype html>
<html>
<head>
<style type="text/css">
div#mp3_player{ width:500px; height:60px; background:#000; padding:5px; margin:50px auto; }
div#mp3_player > div > audio{  width:500px; background:#000; float:left;  }
div#mp3_player > canvas{ width:500px; height:30px; background:#002D3C; float:left; }
</style>
<script>
// Create a new instance of an audio object and adjust some of its properties
var audio = new Audio();
audio.src = 'The Lazy Song.mp3';
audio.controls = true;
audio.loop = true;
audio.autoplay = true;
// Establish all variables that your Analyser will use
var canvas, ctx, source, context, analyser, fbc_array, bars, bar_x, bar_width,bar_height;
// Initialize the MP3 player after the page loads all of its HTML into the window
window.addEventListener("load", initMp3Player, false);
function initMp3Player(){
    document.getElementById('audio_box').appendChild(audio);
    context = new webkitAudioContext(); // AudioContext object instance
    analyser = context.createAnalyser(); // AnalyserNode method
    canvas = document.getElementById('analyser_render');
    ctx = canvas.getContext('2d');
    // Re-route audio playback into the processing graph of the AudioContext
    source = context.createMediaElementSource(audio); 
    source.connect(analyser);
    analyser.connect(context.destination);
    frameLooper();
}
// frameLooper() animates any style of graphics you wish to the audio frequency
// Looping at the default frame rate that the browser provides(approx. 60 FPS)
function frameLooper(){
    window.webkitRequestAnimationFrame(frameLooper);
    fbc_array = new Uint8Array(analyser.frequencyBinCount);
    analyser.getByteFrequencyData(fbc_array);
    ctx.clearRect(0, 0, canvas.width, canvas.height); // Clear the canvas
    ctx.fillStyle = '#00CCFF'; // Color of the bars
    bars = 100;
    for (var i = 0; i < bars; i++) {
        bar_x = i * 3;
        bar_width = 2;
        bar_height = -(fbc_array[i] / 2);
        //fillRect( x, y, width, height ) // Explanation of the parameters below
        ctx.fillRect(bar_x, canvas.height, bar_width, bar_height);
    }
}
</script>
</head>
<body>
    <div id="mp3_player">
        <div id="audio_box"></div>
        <canvas id="analyser_render"></canvas>
    </div>
</body>
</html>

Source

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