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Finding out tempo of the music

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<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <base data-ice="baseUrl" href="../../"> <title data-ice="title">FFT | API Document</title> <link type="text/css" rel="stylesheet" href="css/style.css"> <link type="text/css" rel="stylesheet" href="css/prettify-tomorrow.css"> <script src="script/prettify/prettify.js"></script> <script src="script/manual.js"></script> </head> <body class="layout-container" data-ice="rootContainer"> <header> <a href="./">Home</a> <a href="identifiers.html">Reference</a> <a href="source.html">Source</a> <a data-ice="repoURL" href="https://github.com/killercrush/music-tempo" class="repo-url-github">Repository</a> <div class="search-box"> <span> <img src="./image/search.png"> <span class="search-input-edge"></span><input class="search-input"><span class="search-input-edge"></span> </span> <ul class="search-result"></ul> </div> </header> <nav class="navigation" data-ice="nav"><div> <ul> <li data-ice="doc"><span data-ice="kind" class="kind-class">C</span><span data-ice="name"><span><a href="class/src/Agent.js~Agent.html">Agent</a></span></span></li> <li data-ice="doc"><span data-ice="kind" class="kind-class">C</span><span data-ice="name"><span><a href="class/src/BeatTracking.js~BeatTracking.html">BeatTracking</a></span></span></li> <li data-ice="doc"><span data-ice="kind" class="kind-class">C</span><span data-ice="name"><span><a href="class/src/FFT.js~FFT.html">FFT</a></span></span></li> <li data-ice="doc"><span data-ice="kind" class="kind-class">C</span><span data-ice="name"><span><a href="class/src/MusicTempo.js~MusicTempo.html">MusicTempo</a></span></span></li> <li data-ice="doc"><span data-ice="kind" class="kind-class">C</span><span data-ice="name"><span><a href="class/src/OnsetDetection.js~OnsetDetection.html">OnsetDetection</a></span></span></li> <li data-ice="doc"><span data-ice="kind" class="kind-class">C</span><span data-ice="name"><span><a href="class/src/TempoInduction.js~TempoInduction.html">TempoInduction</a></span></span></li> </ul> </div> </nav> <div class="content" data-ice="content"><div class="header-notice"> <div data-ice="importPath" class="import-path"><pre class="prettyprint"><code data-ice="importPathCode">import FFT from &apos;<span><a href="file/src/FFT.js.html#lineNumber5">music-tempo/src/FFT.js</a></span>&apos;</code></pre></div> <span data-ice="access">public</span> <span data-ice="kind">class</span> <span data-ice="source">| <span><a href="file/src/FFT.js.html#lineNumber5">source</a></span></span> </div> <div class="self-detail detail"> <h1 data-ice="name">FFT</h1> <div class="description" data-ice="description"><p>Class containing methods for Fast Fourier Transform</p> </div> </div> <div data-ice="staticMethodSummary"><h2>Static Method Summary</h2><table class="summary" data-ice="summary"> <thead><tr><td data-ice="title" colspan="3">Static Public Methods</td></tr></thead> <tbody> <tr data-ice="target"> <td> <span class="access" data-ice="access">public</span> <span data-ice="static">static</span> <span class="override" data-ice="override"></span> </td> <td> <div> <p> <span data-ice="name"><span><a href="class/src/FFT.js~FFT.html#static-method-getHammingWindow">getHammingWindow</a></span></span><span data-ice="signature">(bufferSize: <span><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number">Number</a></span>): <span><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array">Array</a></span></span> </p> </div> <div> <div data-ice="description"><p>Get Hamming window</p> </div> </div> </td> <td> </td> </tr> <tr data-ice="target"> <td> <span class="access" data-ice="access">public</span> <span data-ice="static">static</span> <span class="override" data-ice="override"></span> </td> <td> <div> <p> <span data-ice="name"><span><a href="class/src/FFT.js~FFT.html#static-method-getSpectrum">getSpectrum</a></span></span><span data-ice="signature">(re: <span><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array">Array</a></span>, im: <span><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array">Array</a></span>)</span> </p> </div> <div> <div data-ice="description"><p>Computes FFT and converts the results to magnitude representation</p> </div> </div> </td> <td> </td> </tr> </tbody> </table> </div> <div data-ice="staticMethodDetails"><h2 data-ice="title">Static Public Methods</h2> <div class="detail" data-ice="detail"> <h3 data-ice="anchor" id="static-method-getHammingWindow"> <span class="access" data-ice="access">public</span> <span data-ice="static">static</span> <span data-ice="name">getHammingWindow</span><span data-ice="signature">(bufferSize: <span><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number">Number</a></span>): <span><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array">Array</a></span></span> <span class="right-info"> <span data-ice="source"><span><a href="file/src/FFT.js.html#lineNumber11">source</a></span></span> </span> </h3> <div data-ice="description"><p>Get Hamming window</p> </div> <div data-ice="properties"><div data-ice="properties"> <h4 data-ice="title">Params:</h4> <table class="params"> <thead> <tr><td>Name</td><td>Type</td><td>Attribute</td><td>Description</td></tr> </thead> <tbody> <tr data-ice="property" data-depth="0"> <td data-ice="name" data-depth="0">bufferSize</td> <td data-ice="type"><span><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number">Number</a></span></td> <td data-ice="appendix"></td> <td data-ice="description"><p>windows size</p> </td> </tr> </tbody> </table> </div> </div> <div class="return-params" data-ice="returnParams"> <h4>Return:</h4> <table> <tbody> <tr> <td class="return-type" data-ice="returnType"><span><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array">Array</a></span></td> <td class="return-desc" data-ice="returnDescription"><p>wnd - Hamming window</p> </td> </tr> </tbody> </table> <div data-ice="returnProperties"> </div> </div> </div> <div class="detail" data-ice="detail"> <h3 data-ice="anchor" id="static-method-getSpectrum"> <span class="access" data-ice="access">public</span> <span data-ice="static">static</span> <span data-ice="name">getSpectrum</span><span data-ice="signature">(re: <span><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array">Array</a></span>, im: <span><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array">Array</a></span>)</span> <span class="right-info"> <span data-ice="source"><span><a href="file/src/FFT.js.html#lineNumber28">source</a></span></span> </span> </h3> <div data-ice="description"><p>Computes FFT and converts the results to magnitude representation</p> </div> <div data-ice="properties"><div data-ice="properties"> <h4 data-ice="title">Params:</h4> <table class="params"> <thead> <tr><td>Name</td><td>Type</td><td>Attribute</td><td>Description</td></tr> </thead> <tbody> <tr data-ice="property" data-depth="0"> <td data-ice="name" data-depth="0">re</td> <td data-ice="type"><span><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array">Array</a></span></td> <td data-ice="appendix"></td> <td data-ice="description"><p>the real part of the input data and the magnitude of the output data</p> </td> </tr> <tr data-ice="property" data-depth="0"> <td data-ice="name" data-depth="0">im</td> <td data-ice="type"><span><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array">Array</a></span></td> <td data-ice="appendix"></td> <td data-ice="description"><p>the imaginary part of the input data</p> </td> </tr> </tbody> </table> </div> </div> </div> </div> </div> <footer class="footer"> Generated by <a href="https://esdoc.org">ESDoc<span data-ice="esdocVersion">(0.5.2)</span><img src="./image/esdoc-logo-mini-black.png"></a> </footer> <script src="script/search_index.js"></script> <script src="script/search.js"></script> <script src="script/pretty-print.js"></script> <script src="script/inherited-summary.js"></script> <script src="script/test-summary.js"></script> <script src="script/inner-link.js"></script> <script src="script/patch-for-local.js"></script> </body> </html>