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content="AudioBuffer 接口表示存在内存里的一段短小的音频资源，利用AudioContext.decodeAudioData()方法从一个音频文件构建，或者利用 AudioContext.createBuffer()从原始数据构建。把音频放入 AudioBuffer 后，可以传入到一个 AudioBufferSourceNode进行播放。"/><meta property="og:url" content="https://developer.mozilla.org/zh-CN/docs/Web/API/AudioBuffer"/><meta property="og:title" content="AudioBuffer - Web API | MDN"/><meta property="og:type" content="website"/><meta property="og:locale" content="zh_CN"/><meta property="og:description" content="AudioBuffer 接口表示存在内存里的一段短小的音频资源，利用AudioContext.decodeAudioData()方法从一个音频文件构建，或者利用 AudioContext.createBuffer()从原始数据构建。把音频放入 AudioBuffer 后，可以传入到一个 AudioBufferSourceNode进行播放。"/><meta property="og:image" content="https://developer.mozilla.org/mdn-social-share.d893525a4fb5fb1f67a2.png"/><meta property="og:image:type" content="image/png"/><meta property="og:image:height" content="1080"/><meta property="og:image:width" content="1920"/><meta property="og:image:alt" content="The MDN Web Docs logo, featuring a blue accent color, 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class="document-toc-link" href="#可查看">可查看</a></li></ul></section></div></div><div class="sidebar-body"><ol><li class="section"><a href="/zh-CN/docs/Web/API/Web_Audio_API">Web Audio API</a></li><li class="section"><em><a href="/zh-CN/docs/Web/API/AudioBuffer" aria-current="page"><code>AudioBuffer</code></a></em></li><li class="toggle"><details open=""><summary>构造函数</summary><ol><li><a href="/zh-CN/docs/Web/API/AudioBuffer/AudioBuffer"><code>AudioBuffer()</code></a></li></ol></details></li><li class="toggle"><details open=""><summary>实例属性</summary><ol><li><a href="/zh-CN/docs/Web/API/AudioBuffer/duration"><code>duration</code></a></li><li><a href="/zh-CN/docs/Web/API/AudioBuffer/length"><code>length</code></a></li><li><a href="/zh-CN/docs/Web/API/AudioBuffer/numberOfChannels"><code>numberOfChannels</code></a></li><li><a href="/zh-CN/docs/Web/API/AudioBuffer/sampleRate"><code>sampleRate</code></a></li></ol></details></li><li class="toggle"><details open=""><summary>实例方法</summary><ol><li><a href="/zh-CN/docs/Web/API/AudioBuffer/copyFromChannel"><code>copyFromChannel()</code></a></li><li><a href="/en-US/docs/Web/API/AudioBuffer/copyToChannel" class="only-in-en-us"><code>copyToChannel()</code></a></li><li><a href="/zh-CN/docs/Web/API/AudioBuffer/getChannelData"><code>getChannelData()</code></a></li></ol></details></li><li class="toggle"><details open=""><summary>Web Audio API 的相关页面</summary><ol><li><a href="/zh-CN/docs/Web/API/AnalyserNode"><code>AnalyserNode</code></a></li><li><a href="/zh-CN/docs/Web/API/AudioBufferSourceNode"><code>AudioBufferSourceNode</code></a></li><li><a href="/zh-CN/docs/Web/API/AudioContext"><code>AudioContext</code></a></li><li><a href="/zh-CN/docs/Web/API/AudioDestinationNode"><code>AudioDestinationNode</code></a></li><li><a href="/zh-CN/docs/Web/API/AudioListener"><code>AudioListener</code></a></li><li><a href="/zh-CN/docs/Web/API/AudioNode"><code>AudioNode</code></a></li><li><a href="/zh-CN/docs/Web/API/AudioParam"><code>AudioParam</code></a></li><li><a href="/en-US/docs/Web/API/AudioProcessingEvent" class="only-in-en-us"><code>AudioProcessingEvent</code></a><abbr class="icon icon-deprecated" title="已弃用。请不要在新的网站中使用。"> <span class="visually-hidden">已弃用</span> </abbr></li><li><a href="/zh-CN/docs/Web/API/AudioScheduledSourceNode"><code>AudioScheduledSourceNode</code></a></li><li><a href="/en-US/docs/Web/API/AudioSinkInfo" class="only-in-en-us"><code>AudioSinkInfo</code></a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/en-US/docs/Web/API/AudioWorklet" class="only-in-en-us"><code>AudioWorklet</code></a></li><li><a href="/en-US/docs/Web/API/AudioWorkletGlobalScope" class="only-in-en-us"><code>AudioWorkletGlobalScope</code></a></li><li><a href="/zh-CN/docs/Web/API/AudioWorkletNode"><code>AudioWorkletNode</code></a></li><li><a href="/zh-CN/docs/Web/API/AudioWorkletProcessor"><code>AudioWorkletProcessor</code></a></li><li><a href="/en-US/docs/Web/API/BaseAudioContext" class="only-in-en-us"><code>BaseAudioContext</code></a></li><li><a href="/zh-CN/docs/Web/API/BiquadFilterNode"><code>BiquadFilterNode</code></a></li><li><a href="/zh-CN/docs/Web/API/ChannelMergerNode"><code>ChannelMergerNode</code></a></li><li><a href="/en-US/docs/Web/API/ChannelSplitterNode" class="only-in-en-us"><code>ChannelSplitterNode</code></a></li><li><a href="/en-US/docs/Web/API/ConstantSourceNode" class="only-in-en-us"><code>ConstantSourceNode</code></a></li><li><a href="/zh-CN/docs/Web/API/ConvolverNode"><code>ConvolverNode</code></a></li><li><a href="/en-US/docs/Web/API/DelayNode" class="only-in-en-us"><code>DelayNode</code></a></li><li><a href="/zh-CN/docs/Web/API/DynamicsCompressorNode"><code>DynamicsCompressorNode</code></a></li><li><a href="/zh-CN/docs/Web/API/GainNode"><code>GainNode</code></a></li><li><a href="/en-US/docs/Web/API/IIRFilterNode" class="only-in-en-us"><code>IIRFilterNode</code></a></li><li><a href="/zh-CN/docs/Web/API/MediaElementAudioSourceNode"><code>MediaElementAudioSourceNode</code></a></li><li><a href="/en-US/docs/Web/API/MediaStreamAudioDestinationNode" class="only-in-en-us"><code>MediaStreamAudioDestinationNode</code></a></li><li><a href="/zh-CN/docs/Web/API/MediaStreamAudioSourceNode"><code>MediaStreamAudioSourceNode</code></a></li><li><a href="/en-US/docs/Web/API/OfflineAudioCompletionEvent" class="only-in-en-us"><code>OfflineAudioCompletionEvent</code></a></li><li><a href="/zh-CN/docs/Web/API/OfflineAudioContext"><code>OfflineAudioContext</code></a></li><li><a href="/zh-CN/docs/Web/API/OscillatorNode"><code>OscillatorNode</code></a></li><li><a href="/en-US/docs/Web/API/PannerNode" class="only-in-en-us"><code>PannerNode</code></a></li><li><a href="/zh-CN/docs/Web/API/PeriodicWave"><code>PeriodicWave</code></a></li><li><a href="/en-US/docs/Web/API/StereoPannerNode" class="only-in-en-us"><code>StereoPannerNode</code></a></li><li><a href="/zh-CN/docs/Web/API/WaveShaperNode"><code>WaveShaperNode</code></a></li></ol></details></li></ol></div></div><section class="place side"></section></nav></aside><div class="toc-container"><aside class="toc"><nav><div class="document-toc-container"><section class="document-toc"><header><h2 class="document-toc-heading">在本文中</h2></header><ul class="document-toc-list"><li class="document-toc-item "><a class="document-toc-link" href="#属性">属性</a></li><li class="document-toc-item "><a class="document-toc-link" href="#方法">方法</a></li><li class="document-toc-item "><a class="document-toc-link" href="#例子">例子</a></li><li class="document-toc-item "><a class="document-toc-link" href="#规格参数">规格参数</a></li><li class="document-toc-item "><a class="document-toc-link" href="#浏览器兼容性">浏览器兼容性</a></li><li class="document-toc-item "><a class="document-toc-link" href="#可查看">可查看</a></li></ul></section></div></nav></aside><section class="place side"></section></div></div><main id="content" class="main-content "><article class="main-page-content" lang="zh-CN"><header><h1>AudioBuffer</h1><details class="baseline-indicator high"><summary><span class="indicator" role="img" aria-label="Baseline Check"></span><div class="status-title">Baseline <span class="not-bold">Widely available</span></div><div class="browsers"><span class="engine" title="Supported in Chrome and Edge"><span class="browser chrome supported" role="img" aria-label="Chrome check"></span><span class="browser edge supported" role="img" aria-label="Edge check"></span></span><span class="engine" title="Supported in Firefox"><span class="browser firefox supported" role="img" aria-label="Firefox check"></span></span><span class="engine" title="Supported in Safari"><span class="browser safari supported" role="img" aria-label="Safari check"></span></span></div><span class="icon icon-chevron "></span></summary><div class="extra"><p>This feature is well established and works across many devices and browser versions. It’s been available across browsers since April 2021.</p><ul><li><a href="/zh-CN/docs/Glossary/Baseline/Compatibility" data-glean="baseline_link_learn_more" target="_blank" class="learn-more">Learn more</a></li><li><a href="#浏览器兼容性" data-glean="baseline_link_bcd_table">See full compatibility</a></li><li><a href="https://survey.alchemer.com/s3/7634825/MDN-baseline-feedback?page=%2Fzh-CN%2Fdocs%2FWeb%2FAPI%2FAudioBuffer&level=high" data-glean="baseline_link_feedback" class="feedback-link" target="_blank" rel="noreferrer">Report feedback</a></li></ul></div></details></header><div class="section-content"><p>AudioBuffer 接口表示存在内存里的一段短小的音频资源，利用<a href="/zh-CN/docs/Web/API/BaseAudioContext/decodeAudioData"><code>AudioContext.decodeAudioData()</code></a>方法从一个音频文件构建，或者利用 <a href="/zh-CN/docs/Web/API/BaseAudioContext/createBuffer"><code>AudioContext.createBuffer()</code></a>从原始数据构建。把音频放入 AudioBuffer 后，可以传入到一个 <a href="/zh-CN/docs/Web/API/AudioBufferSourceNode"><code>AudioBufferSourceNode</code></a>进行播放。</p> <p>这些类型对象被设计来控制小音频片段，往往短于 45 秒。对于更长的声音，通过 <a href="/zh-CN/docs/Web/API/MediaElementAudioSourceNode"><code>MediaElementAudioSourceNode</code></a>来实现更为合适。缓存区（buffer）包含以下数据：不间断的 IEEE754 32 位线性 PCM，从 -1 到 1 的范围额定，就是说，32 位的浮点缓存区的每个样本在 -1.0 到 1.0 之间。如果<a href="/zh-CN/docs/Web/API/AudioBuffer" aria-current="page"><code>AudioBuffer</code></a>有不同的频道，他们通常被保存在独立的缓存区。</p></div><section aria-labelledby="属性"><h2 id="属性"><a href="#属性">属性</a></h2><div class="section-content"><dl> <dt id="audiobuffer.samplerate"><a href="/zh-CN/docs/Web/API/AudioBuffer/sampleRate"><code>AudioBuffer.sampleRate</code></a> <span class="badge inline readonly" title="该属性的值无法更改">只读 </span></dt> <dd> <p>存储在缓存区的 PCM 数据的采样率：浮点数，单位为 sample/s。</p> </dd> <dt id="audiobuffer.length"><a href="/zh-CN/docs/Web/API/AudioBuffer/length"><code>AudioBuffer.length</code></a> <span class="badge inline readonly" title="该属性的值无法更改">只读 </span></dt> <dd> <p>返回存储在缓存区的 PCM 数据的采样帧数：整型。</p> </dd> <dt id="audiobuffer.duration"><a href="/zh-CN/docs/Web/API/AudioBuffer/duration"><code>AudioBuffer.duration</code></a> <span class="badge inline readonly" title="该属性的值无法更改">只读 </span></dt> <dd> <p>返回存储在缓存区的 PCM 数据的时长：双精度型（单位为秒）。</p> </dd> <dt id="audiobuffer.numberofchannels"><a href="/zh-CN/docs/Web/API/AudioBuffer/numberOfChannels"><code>AudioBuffer.numberOfChannels</code></a> <span class="badge inline readonly" title="该属性的值无法更改">只读 </span></dt> <dd> <p>返回存储在缓存区的 PCM 数据的通道数：整型。</p> </dd> </dl></div></section><section aria-labelledby="方法"><h2 id="方法"><a href="#方法">方法</a></h2><div class="section-content"><dl> <dt id="audiobuffer.getchanneldata"><a href="/zh-CN/docs/Web/API/AudioBuffer/getChannelData"><code>AudioBuffer.getChannelData()</code></a></dt> <dd> <p>返回一个 <a href="/zh-CN/docs/Web/JavaScript/Reference/Global_Objects/Float32Array"><code>Float32Array</code></a>，包含了带有频道的 PCM 数据，由频道参数定义（有 0 代表第一个频道）</p> </dd> <dt id="audiobuffer.copyfromchannel"><a href="/zh-CN/docs/Web/API/AudioBuffer/copyFromChannel"><code>AudioBuffer.copyFromChannel()</code></a></dt> <dd> <p>从 AudioBuffer 的指定频道复制到数组终端。</p> </dd> <dt id="audiobuffer.copytochannel"><a href="/en-US/docs/Web/API/AudioBuffer/copyToChannel" class="only-in-en-us"><code>AudioBuffer.copyToChannel()</code></a></dt> <dd> <p>复制样品到原数组的 AudioBuffer 的指定频道</p> </dd> </dl></div></section><section aria-labelledby="例子"><h2 id="例子"><a href="#例子">例子</a></h2><div class="section-content"><p>以下的例子展示了如何构建一个 AudioBuffer 以及随机用白噪音填充。你可以在 <a href="https://github.com/mdn/webaudio-examples/tree/main/audio-buffer" class="external" target="_blank">audio-buffer 演示</a>库发现完整的源代码；也可以获得一个<a href="https://mdn.github.io/webaudio-examples/audio-buffer/" class="external" target="_blank">实时运行的</a>的版本。</p> <div class="code-example"><div class="example-header"><span class="language-name">js</span></div><pre class="brush: js notranslate"><code>// Stereo var channels = 2; // Create an empty two second stereo buffer at the // sample rate of the AudioContext var frameCount = audioCtx.sampleRate * 2.0; var myArrayBuffer = audioCtx.createBuffer( channels, frameCount, audioCtx.sampleRate, ); button.onclick = function () { // Fill the buffer with white noise; // just random values between -1.0 and 1.0 for (var channel = 0; channel < channels; channel++) { // This gives us the actual array that contains the data var nowBuffering = myArrayBuffer.getChannelData(channel); for (var i = 0; i < frameCount; i++) { // Math.random() is in [0; 1.0] // audio needs to be in [-1.0; 1.0] nowBuffering[i] = Math.random() * 2 - 1; } } // Get an AudioBufferSourceNode. // This is the AudioNode to use when we want to play an AudioBuffer var source = audioCtx.createBufferSource(); // set the buffer in the AudioBufferSourceNode source.buffer = myArrayBuffer; // connect the AudioBufferSourceNode to the // destination so we can hear the sound source.connect(audioCtx.destination); // start the source playing source.start(); }; </code></pre></div></div></section><h2 id="规格参数"><a href="#规格参数">规格参数</a></h2><table class="standard-table"><thead><tr><th scope="col">Specification</th></tr></thead><tbody><tr><td><a href="https://webaudio.github.io/web-audio-api/#AudioBuffer">Web Audio API <br/><small># AudioBuffer</small></a></td></tr></tbody></table><h2 id="浏览器兼容性"><a href="#浏览器兼容性">浏览器兼容性</a></h2><p>BCD tables only load in the browser<noscript> with JavaScript enabled. Enable JavaScript to view data.</noscript></p><section aria-labelledby="可查看"><h2 id="可查看"><a href="#可查看">可查看</a></h2><div class="section-content"><ul> <li><a href="/zh-CN/docs/Web/API/Web_Audio_API/Using_Web_Audio_API">应用 Web Audio API</a></li> </ul></div></section></article><aside class="article-footer"><div class="article-footer-inner"><div class="svg-container"><svg xmlns="http://www.w3.org/2000/svg" width="162" height="162" viewBox="0 0 162 162" fill="none" role="none"><mask id="b" fill="#fff"><path d="M97.203 47.04c8.113-7.886 18.004-13.871 28.906-17.492a78 78 0 0 1 33.969-3.39c11.443 1.39 22.401 5.295 32.024 11.411s17.656 14.28 23.476 23.86c5.819 9.579 9.269 20.318 10.083 31.385a69.85 69.85 0 0 1-5.387 32.44c-4.358 10.272-11.115 19.443-19.747 26.801-8.632 7.359-18.908 12.709-30.034 15.637l-6.17-21.698c7.666-2.017 14.746-5.703 20.694-10.773 5.948-5.071 10.603-11.389 13.606-18.467a48.14 48.14 0 0 0 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content are ©1998–2025 by individual mozilla.org contributors. Content available under <a href="/zh-CN/docs/MDN/Writing_guidelines/Attrib_copyright_license">a Creative Commons license</a>.</p></div></div></footer></div><script type="application/json" id="hydration">{"url":"/zh-CN/docs/Web/API/AudioBuffer","doc":{"body":[{"type":"prose","value":{"id":null,"title":null,"isH3":false,"content":"<p>AudioBuffer 接口表示存在内存里的一段短小的音频资源，利用<a href=\"/zh-CN/docs/Web/API/BaseAudioContext/decodeAudioData\"><code>AudioContext.decodeAudioData()</code></a>方法从一个音频文件构建，或者利用 <a href=\"/zh-CN/docs/Web/API/BaseAudioContext/createBuffer\"><code>AudioContext.createBuffer()</code></a>从原始数据构建。把音频放入 AudioBuffer 后，可以传入到一个 <a href=\"/zh-CN/docs/Web/API/AudioBufferSourceNode\"><code>AudioBufferSourceNode</code></a>进行播放。</p>\n<p>这些类型对象被设计来控制小音频片段，往往短于 45 秒。对于更长的声音，通过 <a href=\"/zh-CN/docs/Web/API/MediaElementAudioSourceNode\"><code>MediaElementAudioSourceNode</code></a>来实现更为合适。缓存区（buffer）包含以下数据：不间断的 IEEE754 32 位线性 PCM，从 -1 到 1 的范围额定，就是说，32 位的浮点缓存区的每个样本在 -1.0 到 1.0 之间。如果<a href=\"/zh-CN/docs/Web/API/AudioBuffer\" aria-current=\"page\"><code>AudioBuffer</code></a>有不同的频道，他们通常被保存在独立的缓存区。</p>"}},{"type":"prose","value":{"id":"属性","title":"属性","isH3":false,"content":"<dl>\n<dt id=\"audiobuffer.samplerate\"><a href=\"/zh-CN/docs/Web/API/AudioBuffer/sampleRate\"><code>AudioBuffer.sampleRate</code></a> <span class=\"badge inline readonly\" title=\"该属性的值无法更改\">只读 </span></dt>\n<dd>\n<p>存储在缓存区的 PCM 数据的采样率：浮点数，单位为 sample/s。</p>\n</dd>\n<dt id=\"audiobuffer.length\"><a href=\"/zh-CN/docs/Web/API/AudioBuffer/length\"><code>AudioBuffer.length</code></a> <span class=\"badge inline readonly\" title=\"该属性的值无法更改\">只读 </span></dt>\n<dd>\n<p>返回存储在缓存区的 PCM 数据的采样帧数：整型。</p>\n</dd>\n<dt id=\"audiobuffer.duration\"><a href=\"/zh-CN/docs/Web/API/AudioBuffer/duration\"><code>AudioBuffer.duration</code></a> <span class=\"badge inline readonly\" title=\"该属性的值无法更改\">只读 </span></dt>\n<dd>\n<p>返回存储在缓存区的 PCM 数据的时长：双精度型（单位为秒）。</p>\n</dd>\n<dt id=\"audiobuffer.numberofchannels\"><a href=\"/zh-CN/docs/Web/API/AudioBuffer/numberOfChannels\"><code>AudioBuffer.numberOfChannels</code></a> <span class=\"badge inline readonly\" title=\"该属性的值无法更改\">只读 </span></dt>\n<dd>\n<p>返回存储在缓存区的 PCM 数据的通道数：整型。</p>\n</dd>\n</dl>"}},{"type":"prose","value":{"id":"方法","title":"方法","isH3":false,"content":"<dl>\n<dt id=\"audiobuffer.getchanneldata\"><a href=\"/zh-CN/docs/Web/API/AudioBuffer/getChannelData\"><code>AudioBuffer.getChannelData()</code></a></dt>\n<dd>\n<p>返回一个 <a href=\"/zh-CN/docs/Web/JavaScript/Reference/Global_Objects/Float32Array\"><code>Float32Array</code></a>，包含了带有频道的 PCM 数据，由频道参数定义（有 0 代表第一个频道）</p>\n</dd>\n<dt id=\"audiobuffer.copyfromchannel\"><a href=\"/zh-CN/docs/Web/API/AudioBuffer/copyFromChannel\"><code>AudioBuffer.copyFromChannel()</code></a></dt>\n<dd>\n<p>从 AudioBuffer 的指定频道复制到数组终端。</p>\n</dd>\n<dt id=\"audiobuffer.copytochannel\"><a href=\"/en-US/docs/Web/API/AudioBuffer/copyToChannel\" class=\"only-in-en-us\"><code>AudioBuffer.copyToChannel()</code></a></dt>\n<dd>\n<p>复制样品到原数组的 AudioBuffer 的指定频道</p>\n</dd>\n</dl>"}},{"type":"prose","value":{"id":"例子","title":"例子","isH3":false,"content":"<p>以下的例子展示了如何构建一个 AudioBuffer 以及随机用白噪音填充。你可以在 <a href=\"https://github.com/mdn/webaudio-examples/tree/main/audio-buffer\" class=\"external\" target=\"_blank\">audio-buffer 演示</a>库发现完整的源代码；也可以获得一个<a href=\"https://mdn.github.io/webaudio-examples/audio-buffer/\" class=\"external\" target=\"_blank\">实时运行的</a>的版本。</p>\n<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">js</span></div><pre class=\"brush: js notranslate\"><code>// Stereo\nvar channels = 2;\n\n// Create an empty two second stereo buffer at the\n// sample rate of the AudioContext\nvar frameCount = audioCtx.sampleRate * 2.0;\nvar myArrayBuffer = audioCtx.createBuffer(\n channels,\n frameCount,\n audioCtx.sampleRate,\n);\n\nbutton.onclick = function () {\n // Fill the buffer with white noise;\n // just random values between -1.0 and 1.0\n for (var channel = 0; channel < channels; channel++) {\n // This gives us the actual array that contains the data\n var nowBuffering = myArrayBuffer.getChannelData(channel);\n for (var i = 0; i < frameCount; i++) {\n // Math.random() is in [0; 1.0]\n // audio needs to be in [-1.0; 1.0]\n nowBuffering[i] = Math.random() * 2 - 1;\n }\n }\n\n // Get an AudioBufferSourceNode.\n // This is the AudioNode to use when we want to play an AudioBuffer\n var source = audioCtx.createBufferSource();\n\n // set the buffer in the AudioBufferSourceNode\n source.buffer = myArrayBuffer;\n\n // connect the AudioBufferSourceNode to the\n // destination so we can hear the sound\n source.connect(audioCtx.destination);\n\n // start the source playing\n source.start();\n};\n</code></pre></div>"}},{"type":"specifications","value":{"id":"规格参数","title":"规格参数","isH3":false,"specifications":[{"bcdSpecificationURL":"https://webaudio.github.io/web-audio-api/#AudioBuffer","title":"Web Audio API"}],"query":"api.AudioBuffer"}},{"type":"browser_compatibility","value":{"id":"浏览器兼容性","title":"浏览器兼容性","isH3":false,"query":"api.AudioBuffer"}},{"type":"prose","value":{"id":"可查看","title":"可查看","isH3":false,"content":"<ul>\n<li><a href=\"/zh-CN/docs/Web/API/Web_Audio_API/Using_Web_Audio_API\">应用 Web Audio API</a></li>\n</ul>"}}],"isActive":true,"isMarkdown":true,"isTranslated":true,"locale":"zh-CN","mdn_url":"/zh-CN/docs/Web/API/AudioBuffer","modified":"2023-07-29T12:32:17.000Z","native":"中文 (简体)","noIndexing":false,"other_translations":[{"locale":"en-US","title":"AudioBuffer","native":"English (US)"},{"locale":"de","title":"AudioBuffer","native":"Deutsch"},{"locale":"es","title":"AudioBuffer","native":"Español"},{"locale":"fr","title":"AudioBuffer","native":"Français"},{"locale":"ja","title":"AudioBuffer","native":"日本語"},{"locale":"ko","title":"AudioBuffer","native":"한국어"},{"locale":"ru","title":"AudioBuffer","native":"Русский"}],"pageTitle":"AudioBuffer - Web API | MDN","parents":[{"uri":"/zh-CN/docs/Web","title":"面向开发者的 Web 技术"},{"uri":"/zh-CN/docs/Web/API","title":"Web API"},{"uri":"/zh-CN/docs/Web/API/AudioBuffer","title":"AudioBuffer"}],"popularity":null,"short_title":"AudioBuffer","sidebarHTML":"<ol><li class=\"section\"><a href=\"/zh-CN/docs/Web/API/Web_Audio_API\">Web Audio API</a></li><li class=\"section\"><em><a href=\"/zh-CN/docs/Web/API/AudioBuffer\" aria-current=\"page\"><code>AudioBuffer</code></a></em></li><li class=\"toggle\"><details open=\"\"><summary>构造函数</summary><ol><li><a href=\"/zh-CN/docs/Web/API/AudioBuffer/AudioBuffer\"><code>AudioBuffer()</code></a></li></ol></details></li><li class=\"toggle\"><details open=\"\"><summary>实例属性</summary><ol><li><a href=\"/zh-CN/docs/Web/API/AudioBuffer/duration\"><code>duration</code></a></li><li><a href=\"/zh-CN/docs/Web/API/AudioBuffer/length\"><code>length</code></a></li><li><a href=\"/zh-CN/docs/Web/API/AudioBuffer/numberOfChannels\"><code>numberOfChannels</code></a></li><li><a href=\"/zh-CN/docs/Web/API/AudioBuffer/sampleRate\"><code>sampleRate</code></a></li></ol></details></li><li class=\"toggle\"><details open=\"\"><summary>实例方法</summary><ol><li><a href=\"/zh-CN/docs/Web/API/AudioBuffer/copyFromChannel\"><code>copyFromChannel()</code></a></li><li><a href=\"/en-US/docs/Web/API/AudioBuffer/copyToChannel\" class=\"only-in-en-us\"><code>copyToChannel()</code></a></li><li><a href=\"/zh-CN/docs/Web/API/AudioBuffer/getChannelData\"><code>getChannelData()</code></a></li></ol></details></li><li class=\"toggle\"><details open=\"\"><summary>Web Audio API 的相关页面</summary><ol><li><a href=\"/zh-CN/docs/Web/API/AnalyserNode\"><code>AnalyserNode</code></a></li><li><a href=\"/zh-CN/docs/Web/API/AudioBufferSourceNode\"><code>AudioBufferSourceNode</code></a></li><li><a href=\"/zh-CN/docs/Web/API/AudioContext\"><code>AudioContext</code></a></li><li><a href=\"/zh-CN/docs/Web/API/AudioDestinationNode\"><code>AudioDestinationNode</code></a></li><li><a href=\"/zh-CN/docs/Web/API/AudioListener\"><code>AudioListener</code></a></li><li><a href=\"/zh-CN/docs/Web/API/AudioNode\"><code>AudioNode</code></a></li><li><a href=\"/zh-CN/docs/Web/API/AudioParam\"><code>AudioParam</code></a></li><li><a href=\"/en-US/docs/Web/API/AudioProcessingEvent\" class=\"only-in-en-us\"><code>AudioProcessingEvent</code></a><abbr class=\"icon icon-deprecated\" title=\"已弃用。请不要在新的网站中使用。\">\n<span class=\"visually-hidden\">已弃用</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/API/AudioScheduledSourceNode\"><code>AudioScheduledSourceNode</code></a></li><li><a href=\"/en-US/docs/Web/API/AudioSinkInfo\" class=\"only-in-en-us\"><code>AudioSinkInfo</code></a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n<span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/AudioWorklet\" class=\"only-in-en-us\"><code>AudioWorklet</code></a></li><li><a href=\"/en-US/docs/Web/API/AudioWorkletGlobalScope\" class=\"only-in-en-us\"><code>AudioWorkletGlobalScope</code></a></li><li><a href=\"/zh-CN/docs/Web/API/AudioWorkletNode\"><code>AudioWorkletNode</code></a></li><li><a href=\"/zh-CN/docs/Web/API/AudioWorkletProcessor\"><code>AudioWorkletProcessor</code></a></li><li><a href=\"/en-US/docs/Web/API/BaseAudioContext\" class=\"only-in-en-us\"><code>BaseAudioContext</code></a></li><li><a href=\"/zh-CN/docs/Web/API/BiquadFilterNode\"><code>BiquadFilterNode</code></a></li><li><a href=\"/zh-CN/docs/Web/API/ChannelMergerNode\"><code>ChannelMergerNode</code></a></li><li><a href=\"/en-US/docs/Web/API/ChannelSplitterNode\" class=\"only-in-en-us\"><code>ChannelSplitterNode</code></a></li><li><a href=\"/en-US/docs/Web/API/ConstantSourceNode\" class=\"only-in-en-us\"><code>ConstantSourceNode</code></a></li><li><a href=\"/zh-CN/docs/Web/API/ConvolverNode\"><code>ConvolverNode</code></a></li><li><a href=\"/en-US/docs/Web/API/DelayNode\" class=\"only-in-en-us\"><code>DelayNode</code></a></li><li><a href=\"/zh-CN/docs/Web/API/DynamicsCompressorNode\"><code>DynamicsCompressorNode</code></a></li><li><a href=\"/zh-CN/docs/Web/API/GainNode\"><code>GainNode</code></a></li><li><a href=\"/en-US/docs/Web/API/IIRFilterNode\" class=\"only-in-en-us\"><code>IIRFilterNode</code></a></li><li><a href=\"/zh-CN/docs/Web/API/MediaElementAudioSourceNode\"><code>MediaElementAudioSourceNode</code></a></li><li><a href=\"/en-US/docs/Web/API/MediaStreamAudioDestinationNode\" class=\"only-in-en-us\"><code>MediaStreamAudioDestinationNode</code></a></li><li><a href=\"/zh-CN/docs/Web/API/MediaStreamAudioSourceNode\"><code>MediaStreamAudioSourceNode</code></a></li><li><a href=\"/en-US/docs/Web/API/OfflineAudioCompletionEvent\" class=\"only-in-en-us\"><code>OfflineAudioCompletionEvent</code></a></li><li><a href=\"/zh-CN/docs/Web/API/OfflineAudioContext\"><code>OfflineAudioContext</code></a></li><li><a href=\"/zh-CN/docs/Web/API/OscillatorNode\"><code>OscillatorNode</code></a></li><li><a href=\"/en-US/docs/Web/API/PannerNode\" class=\"only-in-en-us\"><code>PannerNode</code></a></li><li><a href=\"/zh-CN/docs/Web/API/PeriodicWave\"><code>PeriodicWave</code></a></li><li><a href=\"/en-US/docs/Web/API/StereoPannerNode\" class=\"only-in-en-us\"><code>StereoPannerNode</code></a></li><li><a href=\"/zh-CN/docs/Web/API/WaveShaperNode\"><code>WaveShaperNode</code></a></li></ol></details></li></ol>","source":{"folder":"zh-cn/web/api/audiobuffer","github_url":"https://github.com/mdn/translated-content/blob/main/files/zh-cn/web/api/audiobuffer/index.md","last_commit_url":"https://github.com/mdn/translated-content/commit/19c5158b80b542aa282c301b9ee98b5a4a781bfd","filename":"index.md"},"summary":"AudioBuffer 接口表示存在内存里的一段短小的音频资源，利用AudioContext.decodeAudioData()方法从一个音频文件构建，或者利用 AudioContext.createBuffer()从原始数据构建。把音频放入 AudioBuffer 后，可以传入到一个 AudioBufferSourceNode进行播放。","title":"AudioBuffer","toc":[{"text":"属性","id":"属性"},{"text":"方法","id":"方法"},{"text":"例子","id":"例子"},{"text":"规格参数","id":"规格参数"},{"text":"浏览器兼容性","id":"浏览器兼容性"},{"text":"可查看","id":"可查看"}],"baseline":{"baseline":"high","baseline_low_date":"2021-04-26","baseline_high_date":"2023-10-26","support":{"chrome":"35","chrome_android":"35","edge":"12","firefox":"25","firefox_android":"25","safari":"14.1","safari_ios":"14.5"}},"browserCompat":["api.AudioBuffer"],"pageType":"web-api-interface"}}</script></body></html>