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audio2.html
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<html lang="en">
<head>
<meta charset="utf-8">
<title>Audio</title>
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
<link href="http://fonts.googleapis.com/css?family=Open+Sans:400,300" rel="stylesheet" type="text/css">
<script src="js/lib/three.min.js"></script>
<style>
body {
font-family: 'Open Sans', serif;
font-size: 100%
}
.contentWrapper {
width: 800px;
margin: auto;
font-size: 22px;
font-weight: 200
}
h1 {
font-size: 60px;
font-weight: 300
}
.area {
position: relative;
background: #f8f8f8;
background: -webkit-linear-gradient(#f0f0f0, #f8f8f8);
background: -moz-linear-gradient(#f0f0f0, #f8f8f8);
background: -ms-linear-gradient(#f0f0f0, #f8f8f8);
width: 360px;
height: 360px
}
.circularBar {
position: absolute;
width: 10px;
border-bottom-left-radius: 10px;
border-bottom-right-radius: 10px;
min-height: 5px;
background: #000;
-webkit-transition: .1s ease all;
border-bottom: 3px solid #0f0
}
.curveBar {
position: absolute;
width: 10px;
height: 5px;
background: #000;
border-radius: 5px;
min-height: 5px;
border-bottom: 3px solid #0f0;
border-top: 3px solid red;
-webkit-transition: .1s ease all
}
#circularCenter {
margin: auto;
position: absolute;
top: 0;
left: 0;
bottom: 0;
right: 0;
width: 74px;
height: 74px;
border-radius: 100%;
background: red
}
.circle {
border-radius: 100%;
background: rgba(0, 0, 0, .1);
box-shadow: 0 0 2px 2px #0f0;
margin: auto;
position: absolute;
top: 0;
left: 0;
bottom: 0;
right: 0;
-webkit-transition: .1s ease all
}
.bar {
position: absolute;
bottom: 0;
box-shadow: 0px -2px 0 #0f0;
background: #000;
-webkit-transition: .1s ease all
}
.dot {
position: absolute;
bottom: 0;
background: #000;
box-shadow: 0 0 1px 1px #0f0;
-webkit-transition: .1s ease all;
height: 5px
}
.symbar_left {
position: absolute;
right: 180px;
background: #000;
-webkit-transition: .1s ease all;
border-bottom-left-radius: 15px;
border-top-left-radius: 15px;
border-left: 5px solid #0f0
}
.symbar_right {
position: absolute;
left: 180px;
background: #000;
-webkit-transition: .1s ease all;
border-bottom-right-radius: 15px;
border-top-right-radius: 15px;
border-right: 3px solid red
}
.initiator {
position: absolute;
width: 360px;
height: 360px;
background: rgba(0, 0, 0, .5);
-webkit-transition: .5s ease all;
z-index: 10000;
cursor: pointer
}
.experiment {
position: relative;
float: left;
margin-left: 20px
}
</style>
</head>
<body>
<div class="contentWrapper">
<div class="experiment" id="r0">
<h2>Bars</h2>
<div class="initiator"></div>
<div id="bars" class="area"></div>
</div>
<div class="experiment" id="r1">
<h2>Dots</h2>
<div class="initiator"></div>
<div id="dots" class="area"></div>
</div>
<div class="experiment" id="r2">
<h2>Symmetr. centered</h2>
<div class="initiator"></div>
<div id="symm" class="area"></div>
</div>
<div class="experiment" id="r3">
<h2>Pulse</h2>
<div class="initiator"></div>
<div id="circles" class="area"></div>
</div>
<div class="experiment" id="r4">
<h2>Circular Alignment</h2>
<div class="initiator"></div>
<div id="circular" class="area">
</div>
</div>
<div class="experiment" id="r5">
<h2>Curve Alignment</h2>
<div class="initiator"></div>
<div id="curve" class="area"></div>
</div>
<br style="clear:both;">
<br> <a href="http://www.patrick-wied.at/blog/how-to-create-audio-visualizations-with-javascript-html" target="_blank" title="how to create audio visualizations with javascript">BLOG</a>
<br>
<audio id="r0audio" src="/fire-temple/assets/sounds/bolero-of-fire.mp3"></audio>
</div>
<script>
console.log("test");
window.AudioContext = window.AudioContext || window.webkitAudioContext || window.mozAudioContext;
var renderers = {
'r0': (function() {
var barsArr = [],
initialized = false,
barsEl;
var height = 0;
var init = function(config) {
var count = config.count;
var width = config.width;
var barWidth = (width / count) >> 0;
height = config.height;
barsEl = document.getElementById('bars');
for (var i = 0; i < count; i++) {
var nunode = document.createElement('div');
nunode.classList.add('bar');
nunode.style.width = barWidth + 'px';
nunode.style.left = (barWidth * i) + 'px';
barsArr.push(nunode);
barsEl.appendChild(nunode);
}
initialized = true;
};
var max = 256;
var renderFrame = function(frequencyData) {
for (var i = 0; i < barsArr.length; i++) {
var bar = barsArr[i];
bar.style.height = ((frequencyData[i] / max) * height + 'px');
}
};
return {
init: init,
isInitialized: function() {
return initialized;
},
renderFrame: renderFrame
}
})(),
'r1': (function() {
var barsArr = [],
initialized = false,
barsEl;
var height = 0;
var init = function(config) {
var count = config.count;
var width = config.width;
var barWidth = (width / count) >> 0;
height = config.height;
barsEl = document.getElementById('dots');
for (var i = 0; i < count; i++) {
var nunode = document.createElement('div');
nunode.classList.add('dot');
nunode.style.width = barWidth + 'px';
nunode.style.height = barWidth + 'px';
nunode.style.borderRadius = (barWidth / 2) + 'px';
nunode.style.left = (barWidth * i) + 'px';
barsArr.push(nunode);
barsEl.appendChild(nunode);
}
initialized = true;
};
var max = 256;
var renderFrame = function(frequencyData) {
for (var i = 0; i < barsArr.length; i++) {
var bar = barsArr[i];
bar.style.bottom = ((frequencyData[i] / max) * height + 'px');
}
};
return {
init: init,
isInitialized: function() {
return initialized;
},
renderFrame: renderFrame
}
})(),
'r2': (function() {
var barsArrLeft = [],
barsArrRight = [],
initialized = false,
barsEl;
var height = 0;
var width = 0;
var init = function(config) {
var count = config.count;
width = config.width;
height = config.height;
var barHeight = (height / count) >> 0;
barsEl = document.getElementById('symm');
for (var i = 0; i < count; i++) {
var nunode = document.createElement('div');
var symnode = document.createElement('div');
nunode.classList.add('symbar_left');
symnode.classList.add('symbar_right');
nunode.style.height = symnode.style.height = barHeight + 'px';
nunode.style.bottom = symnode.style.bottom = (barHeight * i) + 'px';
barsArrLeft.push(nunode);
barsArrRight.push(symnode);
barsEl.appendChild(nunode);
barsEl.appendChild(symnode);
}
initialized = true;
};
var max = 256;
var renderFrame = function(frequencyData) {
for (var i = 0; i < barsArrLeft.length; i++) {
var bar = barsArrLeft[i];
var symbar = barsArrRight[i];
var val = ((frequencyData[i] / max) * width / 2 + 'px');
bar.style.width = symbar.style.width = val;
}
};
return {
init: init,
isInitialized: function() {
return initialized;
},
renderFrame: renderFrame
}
})(),
'r3': (function() {
var circles = [];
var initialized = false;
var height = 0;
var width = 0;
var init = function(config) {
var count = config.count;
width = config.width;
height = config.height;
var circleMaxWidth = (width * 0.66) >> 0;
circlesEl = document.getElementById('circles');
for (var i = 0; i < count; i++) {
var node = document.createElement('div');
node.style.width = node.style.height = (i / count * circleMaxWidth) + 'px';
node.classList.add('circle');
circles.push(node);
circlesEl.appendChild(node);
}
initialized = true;
};
var max = 256;
var renderFrame = function(frequencyData) {
for (var i = 0; i < circles.length; i++) {
var circle = circles[i];
circle.style.cssText = '-webkit-transform:scale(' + ((frequencyData[i] / max)) + ')';
}
};
return {
init: init,
isInitialized: function() {
return initialized;
},
renderFrame: renderFrame
}
})(),
'r4': (function() {
var bars = [];
var initialized = false;
var height = 0;
var width = 0;
var init = function(config) {
var count = config.count;
width = config.width;
height = config.height;
var center = width / 2;
var circleMaxWidth = (width * 0.5) >> 0;
var radius = circleMaxWidth * 0.2;
var twopi = 2 * Math.PI;
var change = twopi / count;
circlesEl = document.getElementById('circular');
for (var i = 0; i < twopi; i += change) {
var node = document.createElement('div');
node.style.left = (center + radius * Math.cos(i)) + 'px';
node.style.top = (center + radius * Math.sin(i)) + 'px';
node.style.webkitTransform = node.style.mozTransform = node.style.transform = 'rotate(' + (i - (Math.PI / 2)) + 'rad)';
node.style.webkitTransformOrigin = node.style.mozTransformOrigin = node.style.transformOrigin = '0px 0px';
node.classList.add('circularBar');
bars.push(node);
circlesEl.appendChild(node);
}
var center = document.createElement('div');
center.id = 'circularCenter';
circlesEl.appendChild(center);
initialized = true;
};
var max = 256;
var renderFrame = function(frequencyData) {
for (var i = 0; i < bars.length; i++) {
var bar = bars[i];
bar.style.height = ((frequencyData[i] / max) * 150) + 'px';
}
};
return {
init: init,
isInitialized: function() {
return initialized;
},
renderFrame: renderFrame
}
})(),
'r5': (function() {
var barsRight = [];
var barsLeft = [];
var initialized = false;
var height = 0;
var width = 0;
var init = function(config) {
var count = config.count;
width = config.width;
height = config.height;
var center = width / 2;
var circleMaxWidth = (width * 0.5) >> 0;
var radius = circleMaxWidth * 0.3;
var twopi = 2 * Math.PI
var change = (twopi / count) / 2;
var cos = Math.cos;
var sin = Math.sin;
circlesEl = document.getElementById('curve');
for (var i = 0; i < twopi / 2; i += change) {
var node = document.createElement('div');
var x = (center + radius * (4 * cos(i / 2) * Math.pow(sin(i / 2), 4)));
var y = (center + radius * (2 * cos(i + Math.PI)));
node.style.left = x + 'px';
node.style.top = y + 'px';
var symnode = document.createElement('div');
var symx = width - x;
var symy = y;
symnode.style.left = symx + 'px';
symnode.style.top = symy + 'px';
var rotation = Math.atan(Math.abs(x - center) / Math.abs(y - center));
node.style.webkitTransform = node.style.mozTransform = node.style.transform = 'rotate(' + (-Math.PI / 3) + 'rad)';
node.style.webkitTransformOrigin = node.style.mozTransformOrigin = node.style.transformOrigin = '0px 0px';
symnode.style.webkitTransform = symnode.style.mozTransform = symnode.style.transform = 'rotate(' + (Math.PI / 3) + 'rad)';
symnode.style.webkitTransformOrigin = symnode.style.mozTransformOrigin = symnode.style.transformOrigin = '0px 0px';
node.classList.add('curveBar');
symnode.classList.add('curveBar');
barsLeft.push(symnode);
barsRight.push(node);
circlesEl.appendChild(node);
circlesEl.appendChild(symnode);
}
initialized = true;
};
var max = 256;
var renderFrame = function(frequencyData) {
for (var i = 0; i < barsRight.length; i++) {
var bar = barsRight[i];
var left = barsLeft[i];
bar.style.height = left.style.height = ((frequencyData[barsRight.length - i] / max) * 150) + 'px';
}
};
return {
init: init,
isInitialized: function() {
return initialized;
},
renderFrame: renderFrame
}
})()
};
window.onload = function() {
function Visualization(config) {
var audio, audioStream, analyser, source, audioCtx, canvasCtx, frequencyData, running = false,
renderer = config.renderer,
width = config.width || 360,
height = config.height || 360;
var init = function() {
audio = document.getElementById('r0audio');
audioCtx = new AudioContext();
analyser = audioCtx.createAnalyser();
source = audioCtx.createMediaElementSource(audio);
source.connect(analyser);
analyser.connect(audioCtx.destination);
analyser.fftSize = 64;
frequencyData = new Uint8Array(analyser.frequencyBinCount);
renderer.init({
count: analyser.frequencyBinCount,
width: width,
height: height
});
};
this.start = function() {
audio.play();
running = true;
renderFrame();
};
this.stop = function() {
running = false;
audio.pause();
};
this.setRenderer = function(r) {
if (!r.isInitialized()) {
r.init({
count: analyser.frequencyBinCount,
width: width,
height: height
});
}
renderer = r;
};
this.isPlaying = function() {
return running;
}
var renderFrame = function() {
analyser.getByteFrequencyData(frequencyData);
renderer.renderFrame(frequencyData);
if (running) {
requestAnimationFrame(renderFrame);
}
};
init();
};
var vis = document.querySelectorAll('.initiator');
var v = null;
var lastEl;
var lastElparentId;
for (var i = 0; i < vis.length; i++) {
vis[i].onclick = (function() {
return function() {
var el = this;
var id = el.parentNode.id;
if (!v) {
v = new Visualization({
renderer: renderers[id]
});
}
v.setRenderer(renderers[id]);
if (v.isPlaying()) {
if (lastElparentId === id) {
v.stop();
el.style.backgroundColor = 'rgba(0,0,0,0.5)';
} else {
lastEl.style.backgroundColor = 'rgba(0,0,0,0.5)';
el.style.backgroundColor = 'rgba(0,0,0,0)';
}
} else {
v.start();
el.style.backgroundColor = 'rgba(0,0,0,0)';
}
lastElparentId = id;
lastEl = el;
};
})();
}
};
</script>
<!-- <script src="js/audio.js"></script> -->
</body>
</html>