158 lines
7.3 KiB
HTML
158 lines
7.3 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<link rel="stylesheet" href="./assets/css/prism.css" />
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<script src="./assets/js/prism.js" defer></script>
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<script src="./assets/js/audioshowkit.js"></script>
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</head>
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<body>
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<div>
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<h1>Visualizing Music</h1>
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<p>This is the fun part. We can use a {@link module:player/VisualizedMusicPlayer} and a {@link module:player/MusicPlaylist} to create a music player that is like {@link module:player/MusicPlayer} but with the ability to automatically fetch the current {@link module:visualization/Visualizer}. On top of that, it then routes that visualizer data to {@link module:visualization/VisualizerUpdateManager} which can be to make much more refined mappings.</p>
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This library comes with a variety of mapping tools:
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<ul>
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<li>Want to map ranges of frequency bins to a plethora of element style properties? Take a look at {@link module:mapping/mappings}!</li>
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<li>Check out {@link module:patterns/canvas} for built in canvas patterns.</li>
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<li>We even do font size and color with the {@link module:mapping/text} module!</li>
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</ul>
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</div>
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<div>
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<h2>Instantiation</h2>
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<p>Exactly like when instantiating a normal music player, you will need a playlist. Other than that, it's simple.</p>
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<pre><code class="language-js">
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const ask = window.audioshowkit; // Get a reference to the audioshowkit stuff.
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const playlist = previousPlaylist; // We are assuming you have a playlist ready.
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const player = new ask.player.VisualizedMusicPlayer(playlist) // Creates a new music player with the playlist.
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</code></pre>
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</div>
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<div>
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<h2>Playback</h2>
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<p>Since the usage of playback is the same as a normal {@link module:player/MusicPlayer}, see [the MusicPlayer tutorial]{@tutorial MusicPlayer} for more information.</p>
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<div id="playback-ctrls">
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</div>
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</div>
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<div>
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<h2>Visualization</h2>
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<p>The actual visualization can be performed in a variety of ways. We can use canvases, or even better, actual HTML elements!</p>
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<h3>The first one here shows mapping the width.</h3>
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<div class="result" style="width: 10rem;">
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<div id="width-map-demo" style="height: 2rem; background-color: black;"></div>
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</div>
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<p>Produced by the following code...</p>
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<pre><code class="language-js">
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const widthElem = document.getElementById("width-map-demo"); // selecting an element.
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ask.mappings.dimensions.mapWidth({ // the mapping function for width.
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element: widthElem, // the element to map.
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growLower: 2, // the minimum width
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growUpper: 8, // the maximum width
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unit: "rem", // the units the minimum and maximum are described in.
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lowerBin: 24, // the lower frequency bin.
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upperBin: 80, // the upper frequency bin.
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visUpdateRouter: player.visUpdateRouter, // the visualizer to use (we got ours from the VisMusicPlayer).
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interpolator: ask.support.easings.createEaseLinear(2.5) // an interpolation function to make transitions between frames cleaner.
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});
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</code></pre>
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<h3>This next one does the same, except with height.</h3>
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<div class="result" style="height: 10rem;">
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<div id="height-map-demo" style="height: 2rem; background-color: black;"></div>
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</div>
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<p>Produced by the following code</p>
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<pre><code class="language-js">
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const heightElem = document.getElementById("height-map-demo"); // Only big difference is the function being called.
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ask.mappings.dimensions.mapHeight({
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element: heightElem,
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growLower: 2, // height smallest can be 2 rem, tallest can be 8 rem.
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growUpper: 8,
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unit: "rem",
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lowerBin: 80, // Changed the bin range just for fun.
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upperBin: 120,
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visUpdateRouter: player.visUpdateRouter,
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interpolator: ask.support.easings.createEaseLinear(2.5)
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});
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</code></pre>
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<h3>What's that? you want multiple mappings on one?</h3>
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<p>Of course it's possible</p>
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<div class="result" style="height: 10rem; min-width: 10rem;">
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<div id="square-map-demo" style="height: 2rem; width: 2rem; background-color: black;"></div>
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</div>
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<p>Produced by the following code</p>
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<pre><code class="language-js">
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const squareElem = document.getElementById("square-map-demo"); // Same stuff as before..
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const squareElemConf = { // Use an object for commonly used mappings.
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element: squareElem,
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growLower: 0.5,
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growUpper: 8,
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unit: "rem",
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lowerBin: 128,
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upperBin: 160,
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visUpdateRouter: player.visUpdateRouter,
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interpolator: ask.support.easings.createEaseLinear(2.5)
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}
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ask.mappings.dimensions.mapWidth(squareElemConf); // Apply them easily!
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ask.mappings.dimensions.mapHeight(squareElemConf);
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</code></pre>
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</div>
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<script>
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const ask = window.audioshowkit;
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const playlist = new ask.player.MusicPlaylist("Awesome Music");
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playlist.add("./assets/audio/XXI.mp3", "XXI", "QR");
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playlist.add("./assets/audio/moments.mp3", "Moments", "Lost Identities x Robbie Rosen");
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const player = new ask.player.VisMusicPlayer(playlist);
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const playbackCtrlsElem = document.getElementById("playback-ctrls");
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const prevElem = player.generatePreviousElement();
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const playElem = player.generatePlayElement();
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const nextElem = player.generateNextElement();
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playbackCtrlsElem.appendChild(prevElem);
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playbackCtrlsElem.appendChild(playElem);
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playbackCtrlsElem.appendChild(nextElem);
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const widthElem = document.getElementById("width-map-demo");
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ask.mappings.dimensions.mapWidth({
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element: widthElem,
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growLower: 2,
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growUpper: 8,
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unit: "rem",
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lowerBin: 24,
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upperBin: 60,
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visUpdateRouter: player.visUpdateRouter,
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interpolator: ask.support.easings.createEaseLinear(2.5)
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});
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const heightElem = document.getElementById("height-map-demo");
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ask.mappings.dimensions.mapHeight({
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element: heightElem,
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growLower: 2,
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growUpper: 8,
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unit: "rem",
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lowerBin: 80,
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upperBin: 120,
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visUpdateRouter: player.visUpdateRouter,
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interpolator: ask.support.easings.createEaseLinear(2.5)
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});
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const squareElem = document.getElementById("square-map-demo");
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const squareElemConf = {
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element: squareElem,
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growLower: 0.5,
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growUpper: 8,
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unit: "rem",
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lowerBin: 128,
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upperBin: 160,
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visUpdateRouter: player.visUpdateRouter,
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interpolator: ask.support.easings.createEaseLinear(2.5)
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}
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ask.mappings.dimensions.mapWidth(squareElemConf);
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ask.mappings.dimensions.mapHeight(squareElemConf);
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</script>
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</body>
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</html> |