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<title>音频采集与识别字幕 | Artplayer.js</title>
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<div id="app"><div class="Layout" data-v-c4daae71><!--[--><!--]--><!--[--><span tabindex="-1" data-v-17ad389b></span><a href="#VPContent" class="VPSkipLink visually-hidden" data-v-17ad389b>Skip to content</a><!--]--><!----><header class="VPNav" data-v-c4daae71 data-v-a46e73f0><div class="VPNavBar" data-v-a46e73f0 data-v-bb7529ee><div class="wrapper" data-v-bb7529ee><div class="container" data-v-bb7529ee><div class="title" data-v-bb7529ee><div class="VPNavBarTitle has-sidebar" data-v-bb7529ee data-v-5622a072><a class="title" href="/document/" data-v-5622a072><!--[--><!--]--><!--[--><img class="VPImage logo" src="/document/logo.png" alt data-v-4d414b82><!--]--><span data-v-5622a072>Artplayer.js</span><!--[--><!--]--></a></div></div><div class="content" data-v-bb7529ee><div class="content-body" data-v-bb7529ee><!--[--><!--]--><div class="VPNavBarSearch search" data-v-bb7529ee><!----><div id="docsearch"><button type="button" class="DocSearch DocSearch-Button" aria-label="Search"><span class="DocSearch-Button-Container"><svg width="20" height="20" class="DocSearch-Search-Icon" viewBox="0 0 20 20"><path d="M14.386 14.386l4.0877 4.0877-4.0877-4.0877c-2.9418 2.9419-7.7115 2.9419-10.6533 0-2.9419-2.9418-2.9419-7.7115 0-10.6533 2.9418-2.9419 7.7115-2.9419 10.6533 0 2.9419 2.9418 2.9419 7.7115 0 10.6533z" stroke="currentColor" fill="none" fill-rule="evenodd" stroke-linecap="round" stroke-linejoin="round"></path></svg><span class="DocSearch-Button-Placeholder">Search</span></span><span class="DocSearch-Button-Keys"><span class="DocSearch-Button-Key">Meta</span><span class="DocSearch-Button-Key">K</span></span></button></div></div><nav aria-labelledby="main-nav-aria-label" class="VPNavBarMenu menu" data-v-bb7529ee data-v-5bacfe89><span id="main-nav-aria-label" class="visually-hidden" data-v-5bacfe89> Main Navigation </span><!--[--><!--[--><a class="VPLink link VPNavBarMenuLink" href="/document/" tabindex="0" data-v-5bacfe89 data-v-8dbce4d0><!--[--><span data-v-8dbce4d0>中文版</span><!--]--></a><!--]--><!--[--><a class="VPLink link VPNavBarMenuLink" href="/document/en/" tabindex="0" data-v-5bacfe89 data-v-8dbce4d0><!--[--><span data-v-8dbce4d0>English Docs</span><!--]--></a><!--]--><!--[--><a class="VPLink link vp-external-link-icon VPNavBarMenuLink" href="https://artplayer.org" target="_blank" rel="noreferrer" tabindex="0" data-v-5bacfe89 data-v-8dbce4d0><!--[--><span data-v-8dbce4d0>Online Editor</span><!--]--></a><!--]--><!--[--><a class="VPLink link vp-external-link-icon VPNavBarMenuLink" href="https://artplayer.org/llms.txt" target="_blank" rel="noreferrer" tabindex="0" data-v-5bacfe89 data-v-8dbce4d0><!--[--><span data-v-8dbce4d0>🤖LLMs</span><!--]--></a><!--]--><!--[--><div class="VPFlyout VPNavBarMenuGroup" data-v-5bacfe89 data-v-40e55da0><button type="button" class="button" aria-haspopup="true" aria-expanded="false" data-v-40e55da0><span class="text" data-v-40e55da0><!----><span data-v-40e55da0>6.0.0 (unreleased)</span><span class="vpi-chevron-down text-icon" data-v-40e55da0></span></span></button><div class="menu" data-v-40e55da0><div class="VPMenu" data-v-40e55da0 data-v-39eca401><div class="items" data-v-39eca401><!--[--><!--[--><div class="VPMenuLink" data-v-39eca401 data-v-65e4a6b1><a class="VPLink link vp-external-link-icon" href="https://github.com/zhw2590582/ArtPlayer/blob/master/CHANGELOG.md" target="_blank" rel="noreferrer" data-v-65e4a6b1><!--[--><span data-v-65e4a6b1>Changelog</span><!--]--></a></div><!--]--><!--[--><div class="VPMenuLink" data-v-39eca401 data-v-65e4a6b1><a class="VPLink link vp-external-link-icon" href="https://github.com/zhw2590582/ArtPlayer#donations" target="_blank" rel="noreferrer" data-v-65e4a6b1><!--[--><span data-v-65e4a6b1>Donation</span><!--]--></a></div><!--]--><!--]--></div><!--[--><!--]--></div></div></div><!--]--><!--]--></nav><!----><div class="VPNavBarAppearance appearance" data-v-bb7529ee data-v-123fcb2f><button class="VPSwitch VPSwitchAppearance" type="button" role="switch" title aria-checked="true" data-v-123fcb2f data-v-fa1daf57 data-v-7012e5dd><span class="check" data-v-7012e5dd><span class="icon" data-v-7012e5dd><!--[--><span class="vpi-sun sun" data-v-fa1daf57></span><span class="vpi-moon moon" data-v-fa1daf57></span><!--]--></span></span></button></div><div class="VPSocialLinks VPNavBarSocialLinks social-links" data-v-bb7529ee data-v-08b35e6f data-v-f2234a39><!--[--><a class="VPSocialLink no-icon" href="https://github.com/zhw2590582/ArtPlayer" aria-label="github" target="_blank" rel="noopener" data-v-f2234a39 data-v-fbf39218><span class="vpi-social-github"></span></a><!--]--></div><div class="VPFlyout VPNavBarExtra extra" data-v-bb7529ee data-v-0c845e5d data-v-40e55da0><button type="button" class="button" aria-haspopup="true" aria-expanded="false" aria-label="extra navigation" data-v-40e55da0><span class="vpi-more-horizontal icon" data-v-40e55da0></span></button><div class="menu" data-v-40e55da0><div class="VPMenu" data-v-40e55da0 data-v-39eca401><!----><!--[--><!--[--><!----><div class="group" data-v-0c845e5d><div class="item appearance" data-v-0c845e5d><p class="label" data-v-0c845e5d>Appearance</p><div class="appearance-action" data-v-0c845e5d><button class="VPSwitch VPSwitchAppearance" type="button" role="switch" title aria-checked="true" data-v-0c845e5d data-v-fa1daf57 data-v-7012e5dd><span class="check" data-v-7012e5dd><span class="icon" data-v-7012e5dd><!--[--><span class="vpi-sun sun" data-v-fa1daf57></span><span class="vpi-moon moon" data-v-fa1daf57></span><!--]--></span></span></button></div></div></div><div class="group" data-v-0c845e5d><div class="item social-links" data-v-0c845e5d><div class="VPSocialLinks social-links-list" data-v-0c845e5d data-v-f2234a39><!--[--><a class="VPSocialLink no-icon" href="https://github.com/zhw2590582/ArtPlayer" aria-label="github" target="_blank" rel="noopener" data-v-f2234a39 data-v-fbf39218><span class="vpi-social-github"></span></a><!--]--></div></div></div><!--]--><!--]--></div></div></div><!--[--><!--]--><button type="button" class="VPNavBarHamburger hamburger" aria-label="mobile navigation" aria-expanded="false" aria-controls="VPNavScreen" data-v-bb7529ee data-v-670493dd><span class="container" data-v-670493dd><span class="top" data-v-670493dd></span><span class="middle" data-v-670493dd></span><span class="bottom" data-v-670493dd></span></span></button></div></div></div></div><div class="divider" data-v-bb7529ee><div class="divider-line" data-v-bb7529ee></div></div></div><!----></header><div class="VPLocalNav has-sidebar empty" data-v-c4daae71 data-v-9d8129cc><div class="container" data-v-9d8129cc><button class="menu" aria-expanded="false" aria-controls="VPSidebarNav" data-v-9d8129cc><span class="vpi-align-left menu-icon" data-v-9d8129cc></span><span class="menu-text" data-v-9d8129cc>Menu</span></button><div class="VPLocalNavOutlineDropdown" style="--vp-vh:0px;" data-v-9d8129cc data-v-d61422fe><button data-v-d61422fe>Return to top</button><!----></div></div></div><aside class="VPSidebar" data-v-c4daae71 data-v-12a40e3d><div class="curtain" data-v-12a40e3d></div><nav class="nav" id="VPSidebarNav" aria-labelledby="sidebar-aria-label" tabindex="-1" data-v-12a40e3d><span class="visually-hidden" id="sidebar-aria-label" data-v-12a40e3d> Sidebar Navigation </span><!--[--><!--]--><!--[--><div class="no-transition group" data-v-ec086cd5><section class="VPSidebarItem level-0" data-v-ec086cd5 data-v-2e0476bc><div class="item" role="button" tabindex="0" data-v-2e0476bc><div class="indicator" data-v-2e0476bc></div><h2 class="text" data-v-2e0476bc>开始</h2><!----></div><div class="items" data-v-2e0476bc><!--[--><div class="VPSidebarItem level-1 is-link" data-v-2e0476bc data-v-2e0476bc><div class="item" data-v-2e0476bc><div class="indicator" data-v-2e0476bc></div><a class="VPLink link link" href="/document/" data-v-2e0476bc><!--[--><p class="text" data-v-2e0476bc>安装使用</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-2e0476bc data-v-2e0476bc><div class="item" data-v-2e0476bc><div class="indicator" data-v-2e0476bc></div><a class="VPLink link link" href="/document/start/option.html" data-v-2e0476bc><!--[--><p class="text" data-v-2e0476bc>基础选项</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-2e0476bc data-v-2e0476bc><div class="item" data-v-2e0476bc><div class="indicator" data-v-2e0476bc></div><a class="VPLink link link" href="/document/start/i18n.html" data-v-2e0476bc><!--[--><p class="text" data-v-2e0476bc>语言设置</p><!--]--></a><!----></div><!----></div><!--]--></div></section></div><div class="no-transition group" data-v-ec086cd5><section class="VPSidebarItem level-0" data-v-ec086cd5 data-v-2e0476bc><div class="item" role="button" tabindex="0" data-v-2e0476bc><div class="indicator" data-v-2e0476bc></div><h2 class="text" data-v-2e0476bc>组件</h2><!----></div><div class="items" data-v-2e0476bc><!--[--><div class="VPSidebarItem level-1 is-link" data-v-2e0476bc data-v-2e0476bc><div class="item" data-v-2e0476bc><div class="indicator" data-v-2e0476bc></div><a class="VPLink link link" href="/document/component/layers.html" data-v-2e0476bc><!--[--><p class="text" data-v-2e0476bc>业务层</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-2e0476bc data-v-2e0476bc><div class="item" data-v-2e0476bc><div class="indicator" data-v-2e0476bc></div><a class="VPLink link link" href="/document/component/controls.html" data-v-2e0476bc><!--[--><p class="text" data-v-2e0476bc>控制器</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-2e0476bc data-v-2e0476bc><div class="item" data-v-2e0476bc><div class="indicator" data-v-2e0476bc></div><a class="VPLink link link" href="/document/component/contextmenu.html" data-v-2e0476bc><!--[--><p class="text" data-v-2e0476bc>右键菜单</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-2e0476bc data-v-2e0476bc><div class="item" data-v-2e0476bc><div class="indicator" data-v-2e0476bc></div><a class="VPLink link link" href="/document/component/setting.html" data-v-2e0476bc><!--[--><p class="text" data-v-2e0476bc>设置面板</p><!--]--></a><!----></div><!----></div><!--]--></div></section></div><div class="no-transition group" data-v-ec086cd5><section class="VPSidebarItem level-0" data-v-ec086cd5 data-v-2e0476bc><div class="item" role="button" tabindex="0" data-v-2e0476bc><div class="indicator" data-v-2e0476bc></div><h2 class="text" data-v-2e0476bc>高级</h2><!----></div><div class="items" data-v-2e0476bc><!--[--><div class="VPSidebarItem level-1 is-link" data-v-2e0476bc data-v-2e0476bc><div class="item" data-v-2e0476bc><div class="indicator" data-v-2e0476bc></div><a class="VPLink link link" href="/document/advanced/property.html" data-v-2e0476bc><!--[--><p class="text" data-v-2e0476bc>实例属性</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-2e0476bc data-v-2e0476bc><div class="item" data-v-2e0476bc><div class="indicator" data-v-2e0476bc></div><a class="VPLink link link" href="/document/advanced/built-in.html" data-v-2e0476bc><!--[--><p class="text" data-v-2e0476bc>高级属性</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-2e0476bc data-v-2e0476bc><div class="item" data-v-2e0476bc><div class="indicator" data-v-2e0476bc></div><a class="VPLink link link" href="/document/advanced/class.html" data-v-2e0476bc><!--[--><p class="text" data-v-2e0476bc>静态属性</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-2e0476bc data-v-2e0476bc><div class="item" data-v-2e0476bc><div class="indicator" data-v-2e0476bc></div><a class="VPLink link link" href="/document/advanced/global.html" data-v-2e0476bc><!--[--><p class="text" data-v-2e0476bc>全局属性</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-2e0476bc data-v-2e0476bc><div class="item" data-v-2e0476bc><div class="indicator" data-v-2e0476bc></div><a class="VPLink link link" href="/document/advanced/event.html" data-v-2e0476bc><!--[--><p class="text" data-v-2e0476bc>实例事件</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-2e0476bc data-v-2e0476bc><div class="item" data-v-2e0476bc><div class="indicator" data-v-2e0476bc></div><a class="VPLink link link" href="/document/advanced/plugin.html" data-v-2e0476bc><!--[--><p class="text" data-v-2e0476bc>编写插件</p><!--]--></a><!----></div><!----></div><!--]--></div></section></div><div class="no-transition group" data-v-ec086cd5><section class="VPSidebarItem level-0 has-active" data-v-ec086cd5 data-v-2e0476bc><div class="item" role="button" tabindex="0" data-v-2e0476bc><div class="indicator" data-v-2e0476bc></div><h2 class="text" data-v-2e0476bc>插件</h2><!----></div><div class="items" data-v-2e0476bc><!--[--><div class="VPSidebarItem level-1 is-link" data-v-2e0476bc data-v-2e0476bc><div class="item" data-v-2e0476bc><div class="indicator" data-v-2e0476bc></div><a class="VPLink link link" href="/document/plugin/danmuku.html" data-v-2e0476bc><!--[--><p class="text" data-v-2e0476bc>🎉 弹幕库</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-2e0476bc data-v-2e0476bc><div class="item" data-v-2e0476bc><div class="indicator" data-v-2e0476bc></div><a class="VPLink link link" href="/document/plugin/danmuku-mask.html" data-v-2e0476bc><!--[--><p class="text" data-v-2e0476bc>弹幕遮罩</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-2e0476bc data-v-2e0476bc><div class="item" data-v-2e0476bc><div class="indicator" data-v-2e0476bc></div><a class="VPLink link link" href="/document/plugin/ads.html" data-v-2e0476bc><!--[--><p class="text" data-v-2e0476bc>视频广告</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-2e0476bc data-v-2e0476bc><div class="item" data-v-2e0476bc><div class="indicator" data-v-2e0476bc></div><a class="VPLink link link" href="/document/plugin/hls-control.html" data-v-2e0476bc><!--[--><p class="text" data-v-2e0476bc>HLS 控制</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-2e0476bc data-v-2e0476bc><div class="item" data-v-2e0476bc><div class="indicator" data-v-2e0476bc></div><a class="VPLink link link" href="/document/plugin/dash-control.html" data-v-2e0476bc><!--[--><p class="text" data-v-2e0476bc>DASH 控制</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-2e0476bc data-v-2e0476bc><div class="item" data-v-2e0476bc><div class="indicator" data-v-2e0476bc></div><a class="VPLink link link" href="/document/plugin/vtt-thumbnail.html" data-v-2e0476bc><!--[--><p class="text" data-v-2e0476bc>VTT 缩略图</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-2e0476bc data-v-2e0476bc><div class="item" data-v-2e0476bc><div class="indicator" data-v-2e0476bc></div><a class="VPLink link link" href="/document/plugin/auto-thumbnail.html" data-v-2e0476bc><!--[--><p class="text" data-v-2e0476bc>自动缩略图</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-2e0476bc data-v-2e0476bc><div class="item" data-v-2e0476bc><div class="indicator" data-v-2e0476bc></div><a class="VPLink link link" href="/document/plugin/multiple-subtitles.html" data-v-2e0476bc><!--[--><p class="text" data-v-2e0476bc>多重字幕</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-2e0476bc data-v-2e0476bc><div class="item" data-v-2e0476bc><div class="indicator" data-v-2e0476bc></div><a class="VPLink link link" href="/document/plugin/jassub.html" data-v-2e0476bc><!--[--><p class="text" data-v-2e0476bc>ASS 字幕 - JASSUB</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-2e0476bc data-v-2e0476bc><div class="item" data-v-2e0476bc><div class="indicator" data-v-2e0476bc></div><a class="VPLink link link" href="/document/plugin/chromecast.html" data-v-2e0476bc><!--[--><p class="text" data-v-2e0476bc>Chromecast</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-2e0476bc data-v-2e0476bc><div class="item" data-v-2e0476bc><div class="indicator" data-v-2e0476bc></div><a class="VPLink link link" href="/document/plugin/vast.html" data-v-2e0476bc><!--[--><p class="text" data-v-2e0476bc>VAST 广告</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-2e0476bc data-v-2e0476bc><div class="item" data-v-2e0476bc><div class="indicator" data-v-2e0476bc></div><a class="VPLink link link" href="/document/plugin/chapter.html" data-v-2e0476bc><!--[--><p class="text" data-v-2e0476bc>视频章节</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-2e0476bc data-v-2e0476bc><div class="item" data-v-2e0476bc><div class="indicator" data-v-2e0476bc></div><a class="VPLink link link" href="/document/plugin/ambilight.html" data-v-2e0476bc><!--[--><p class="text" data-v-2e0476bc>视频背光</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-2e0476bc data-v-2e0476bc><div class="item" data-v-2e0476bc><div class="indicator" data-v-2e0476bc></div><a class="VPLink link link" href="/document/plugin/document-pip.html" data-v-2e0476bc><!--[--><p class="text" data-v-2e0476bc>文档画中画</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-2e0476bc data-v-2e0476bc><div class="item" data-v-2e0476bc><div class="indicator" data-v-2e0476bc></div><a class="VPLink link link" href="/document/plugin/asr.html" data-v-2e0476bc><!--[--><p class="text" data-v-2e0476bc>音频采集与识别字幕</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-2e0476bc data-v-2e0476bc><div class="item" data-v-2e0476bc><div class="indicator" data-v-2e0476bc></div><a class="VPLink link link" href="/document/plugin/audio-track.html" data-v-2e0476bc><!--[--><p class="text" data-v-2e0476bc>独立音轨</p><!--]--></a><!----></div><!----></div><!--]--></div></section></div><div class="no-transition group" data-v-ec086cd5><section class="VPSidebarItem level-0" data-v-ec086cd5 data-v-2e0476bc><div class="item" role="button" tabindex="0" data-v-2e0476bc><div class="indicator" data-v-2e0476bc></div><h2 class="text" data-v-2e0476bc>工具</h2><!----></div><div class="items" data-v-2e0476bc><!--[--><div class="VPSidebarItem level-1 is-link" data-v-2e0476bc data-v-2e0476bc><div class="item" data-v-2e0476bc><div class="indicator" data-v-2e0476bc></div><a class="VPLink link link" href="/document/tool/iframe.html" data-v-2e0476bc><!--[--><p class="text" data-v-2e0476bc>Iframe 控制</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-2e0476bc data-v-2e0476bc><div class="item" data-v-2e0476bc><div class="indicator" data-v-2e0476bc></div><a class="VPLink link link" href="/document/tool/thumbnail.html" data-v-2e0476bc><!--[--><p class="text" data-v-2e0476bc>本地视频缩略图</p><!--]--></a><!----></div><!----></div><!--]--></div></section></div><div class="no-transition group" data-v-ec086cd5><section class="VPSidebarItem level-0" data-v-ec086cd5 data-v-2e0476bc><div class="item" role="button" tabindex="0" data-v-2e0476bc><div class="indicator" data-v-2e0476bc></div><h2 class="text" data-v-2e0476bc>第三方库</h2><!----></div><div class="items" data-v-2e0476bc><!--[--><div class="VPSidebarItem level-1 is-link" data-v-2e0476bc data-v-2e0476bc><div class="item" data-v-2e0476bc><div class="indicator" data-v-2e0476bc></div><a class="VPLink link vp-external-link-icon link" href="https://artplayer.org/?libs=https://cdnjs.cloudflare.com/ajax/libs/hls.js/1.5.17/hls.min.js&example=hls" target="_blank" rel="noreferrer" data-v-2e0476bc><!--[--><p class="text" data-v-2e0476bc>hls.js</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-2e0476bc data-v-2e0476bc><div class="item" data-v-2e0476bc><div class="indicator" data-v-2e0476bc></div><a class="VPLink link vp-external-link-icon link" href="https://artplayer.org/?libs=https://cdnjs.cloudflare.com/ajax/libs/flv.js/1.6.2/flv.min.js&example=flv" target="_blank" rel="noreferrer" data-v-2e0476bc><!--[--><p class="text" data-v-2e0476bc>flv.js</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-2e0476bc data-v-2e0476bc><div class="item" data-v-2e0476bc><div class="indicator" data-v-2e0476bc></div><a class="VPLink link vp-external-link-icon link" href="https://artplayer.org/?libs=https://cdnjs.cloudflare.com/ajax/libs/dashjs/5.2.1/modern/umd/dash.all.min.js&example=dash" target="_blank" rel="noreferrer" data-v-2e0476bc><!--[--><p class="text" data-v-2e0476bc>dash.js</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-2e0476bc data-v-2e0476bc><div class="item" data-v-2e0476bc><div class="indicator" data-v-2e0476bc></div><a class="VPLink link vp-external-link-icon link" href="https://artplayer.org/?libs=https://cdn.jsdelivr.net/npm/mpegts.js@1.7.3/dist/mpegts.min.js&example=mpegts" target="_blank" rel="noreferrer" data-v-2e0476bc><!--[--><p class="text" data-v-2e0476bc>mpegts.js</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-2e0476bc data-v-2e0476bc><div class="item" data-v-2e0476bc><div class="indicator" data-v-2e0476bc></div><a class="VPLink link vp-external-link-icon link" href="https://artplayer.org/?libs=https://cdn.jsdelivr.net/npm/webtorrent@1/webtorrent.min.js&example=webtorrent" target="_blank" rel="noreferrer" data-v-2e0476bc><!--[--><p class="text" data-v-2e0476bc>webtorrent.js</p><!--]--></a><!----></div><!----></div><!--]--></div></section></div><div class="no-transition group" data-v-ec086cd5><section class="VPSidebarItem level-0" data-v-ec086cd5 data-v-2e0476bc><div class="item" role="button" tabindex="0" data-v-2e0476bc><div class="indicator" data-v-2e0476bc></div><h2 class="text" data-v-2e0476bc>代理</h2><!----></div><div class="items" data-v-2e0476bc><!--[--><div class="VPSidebarItem level-1 is-link" data-v-2e0476bc data-v-2e0476bc><div class="item" data-v-2e0476bc><div class="indicator" data-v-2e0476bc></div><a class="VPLink link link" href="/document/proxy/canvas.html" data-v-2e0476bc><!--[--><p class="text" data-v-2e0476bc>Canvas</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-2e0476bc data-v-2e0476bc><div class="item" data-v-2e0476bc><div class="indicator" data-v-2e0476bc></div><a class="VPLink link link" href="/document/proxy/mediabunny.html" data-v-2e0476bc><!--[--><p class="text" data-v-2e0476bc>Mediabunny</p><!--]--></a><!----></div><!----></div><!--]--></div></section></div><!--]--><!--[--><!--]--></nav></aside><div class="VPContent has-sidebar" id="VPContent" data-v-c4daae71 data-v-d2aef184><div class="VPDoc has-sidebar has-aside" data-v-d2aef184 data-v-ef3a4dda><!--[--><!--]--><div class="container" data-v-ef3a4dda><div class="aside" data-v-ef3a4dda><div class="aside-curtain" data-v-ef3a4dda></div><div class="aside-container" data-v-ef3a4dda><div class="aside-content" data-v-ef3a4dda><div class="VPDocAside" data-v-ef3a4dda data-v-79cae1a0><!--[--><!--]--><!--[--><!--]--><nav aria-labelledby="doc-outline-aria-label" class="VPDocAsideOutline" data-v-79cae1a0 data-v-dfbd9fb8><div class="content" data-v-dfbd9fb8><div class="outline-marker" data-v-dfbd9fb8></div><div aria-level="2" class="outline-title" id="doc-outline-aria-label" role="heading" data-v-dfbd9fb8>On this page</div><ul class="VPDocOutlineItem root" data-v-dfbd9fb8 data-v-da421f78><!--[--><!--]--></ul></div></nav><!--[--><!--]--><div class="spacer" data-v-79cae1a0></div><!--[--><!--]--><!----><!--[--><!--]--><!--[--><!--]--></div></div></div></div><div class="content" data-v-ef3a4dda><div class="content-container" data-v-ef3a4dda><!--[--><!--]--><main class="main" data-v-ef3a4dda><div style="position:relative;" class="vp-doc _document_plugin_asr" data-v-ef3a4dda><div><h1 id="音频采集与识别字幕" tabindex="-1">音频采集与识别字幕 <a class="header-anchor" href="#音频采集与识别字幕" aria-label="Permalink to "音频采集与识别字幕""></a></h1><p><a href="./../en/plugin/asr.html">English</a></p><p>从播放器视频采集音频,将 PCM/WAV 片段交给应用提供的识别回调,并显示回调返回的字幕。插件不内置识别模型或网络服务,也不读取麦克风。本页描述当前未发布的重构分支;新增类型入口和采集选项不等于线上版本已具备这些能力。</p><h2 id="安装和本地示例" tabindex="-1">安装和本地示例 <a class="header-anchor" href="#安装和本地示例" aria-label="Permalink to "安装和本地示例""></a></h2><div class="language-sh vp-adaptive-theme line-numbers-mode"><button title="Copy Code" class="copy"></button><span class="lang">sh</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">yarn</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> add</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> artplayer</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> artplayer-plugin-asr</span></span></code></pre><div class="line-numbers-wrapper" aria-hidden="true"><span class="line-number">1</span><br></div></div><div class="language-js vp-adaptive-theme line-numbers-mode"><button title="Copy Code" class="copy"></button><span class="lang">js</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> Artplayer </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> 'artplayer'</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
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<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> artplayerPluginAsr </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> 'artplayer-plugin-asr'</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span></code></pre><div class="line-numbers-wrapper" aria-hidden="true"><span class="line-number">1</span><br><span class="line-number">2</span><br></div></div><p>使用 script 时先加载 ArtPlayer,再加载 <code>dist/artplayer-plugin-asr.js</code>,全局名为 <code>artplayerPluginAsr</code>。以下保留 <code>asr.local</code> 原始示例:只采集本地站点的样本视频并显示统计,字幕是模拟文字,不上传音频,也不代表识别准确率。识别服务由应用在回调内自行接入。</p><div className="run-code" data-libs="./uncompiled/artplayer-plugin-asr/index.js">▶ Run Code</div><div class="language-js vp-adaptive-theme line-numbers-mode"><button title="Copy Code" class="copy"></button><span class="lang">js</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">/* global Artplayer, artplayerPluginAsr */</span></span>
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<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// Local audio capture demo. The subtitles below are simulated, not recognized speech.</span></span>
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<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// No audio is uploaded; only the sample media is loaded from this local site.</span></span>
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<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">const</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> statistics</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> =</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> document.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">createElement</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">'div'</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)</span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">statistics.textContent </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">=</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> 'Local ASR demo: press play. No recognition service is used.'</span></span>
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||
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">let</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> chunks </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">=</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 0</span></span>
|
||
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">let</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> pcmBytes </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">=</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 0</span></span>
|
||
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">let</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> wavBytes </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">=</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 0</span></span>
|
||
<span class="line"></span>
|
||
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">const</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> art</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> =</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> new</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> Artplayer</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">({</span></span>
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||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> container: </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">'.artplayer-app'</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">,</span></span>
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||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> url: </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">'/assets/sample/steve-jobs.mp4'</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">,</span></span>
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||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> autoSize: </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">true</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">,</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> fullscreen: </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">true</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">,</span></span>
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||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> fullscreenWeb: </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">true</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">,</span></span>
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||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> layers: [{</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> name: </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">'asr-local-statistics'</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">,</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> html: statistics,</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> style: {</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> position: </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">'absolute'</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">,</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> top: </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">'12px'</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">,</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> left: </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">'12px'</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">,</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> right: </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">'12px'</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">,</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> padding: </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">'8px 12px'</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">,</span></span>
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||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> background: </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">'rgba(0, 0, 0, 0.65)'</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">,</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> color: </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">'#fff'</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">,</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> fontSize: </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">'12px'</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">,</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> whiteSpace: </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">'pre-line'</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">,</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> pointerEvents: </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">'none'</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">,</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> },</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> }],</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> controls: [{</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> name: </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">'asr-local-stop'</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">,</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> position: </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">'right'</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">,</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> html: </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">'Stop ASR'</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">,</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> tooltip: </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">'Stop capture; pause and play to restart'</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">,</span></span>
|
||
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> async</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> click</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">() {</span></span>
|
||
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> await</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> art.plugins.artplayerPluginAsr.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">stop</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">()</span></span>
|
||
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> if</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">!</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">art.isDestroy)</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> statistics.textContent </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">=</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> 'Local capture stopped. Pause and play to restart. Nothing was uploaded.'</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> },</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> }],</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> plugins: [</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">artplayerPluginAsr</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">({</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> length: </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">2</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">,</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> interval: </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">250</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">,</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> sampleRate: </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">16000</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">,</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> autoHideTimeout: </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">5000</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">,</span></span>
|
||
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> onAudioChunk</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">({ </span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;">pcm</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;">wav</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> }) {</span></span>
|
||
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> if</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (art.isDestroy)</span></span>
|
||
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> return</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> chunks</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">++</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> pcmBytes </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">+=</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> pcm.byteLength</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> wavBytes </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">+=</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> wav.byteLength</span></span>
|
||
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> const</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> sampleRate</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> =</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> new</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> DataView</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(wav).</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">getUint32</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">24</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">true</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)</span></span>
|
||
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> const</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> samples</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> =</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> new</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> DataView</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(pcm)</span></span>
|
||
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> let</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> peak </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">=</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 0</span></span>
|
||
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> for</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">let</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> offset </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">=</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">; offset </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"><</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> pcm.byteLength; offset </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">+=</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 2</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> peak </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">=</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> Math.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">max</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(peak, Math.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">abs</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(samples.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">getInt16</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(offset, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">true</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)))</span></span>
|
||
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> const</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> duration</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> =</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (pcmBytes </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">/</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 2</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> /</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> sampleRate).</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">toFixed</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">2</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> statistics.textContent </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">=</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> [</span></span>
|
||
<span class="line"><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> 'Local capture only - simulated subtitles, no speech recognition'</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">,</span></span>
|
||
<span class="line"><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> `Chunks: ${</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">chunks</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">} | ${</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">sampleRate</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">} Hz mono PCM16 | ${</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">duration</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">} seconds captured`</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">,</span></span>
|
||
<span class="line"><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> `PCM: ${</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">pcmBytes</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">} bytes | WAV: ${</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">wavBytes</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">} bytes | Current peak: ${</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">peak</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">}`</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">,</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> ].</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">join</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">'</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">\n</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">'</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)</span></span>
|
||
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> return</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> `Simulated local subtitle: audio chunk ${</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">chunks</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">} received.`</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> },</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> })],</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">})</span></span></code></pre><div class="line-numbers-wrapper" aria-hidden="true"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br><span class="line-number">10</span><br><span class="line-number">11</span><br><span class="line-number">12</span><br><span class="line-number">13</span><br><span class="line-number">14</span><br><span class="line-number">15</span><br><span class="line-number">16</span><br><span class="line-number">17</span><br><span class="line-number">18</span><br><span class="line-number">19</span><br><span class="line-number">20</span><br><span class="line-number">21</span><br><span class="line-number">22</span><br><span class="line-number">23</span><br><span class="line-number">24</span><br><span class="line-number">25</span><br><span class="line-number">26</span><br><span class="line-number">27</span><br><span class="line-number">28</span><br><span class="line-number">29</span><br><span class="line-number">30</span><br><span class="line-number">31</span><br><span class="line-number">32</span><br><span class="line-number">33</span><br><span class="line-number">34</span><br><span class="line-number">35</span><br><span class="line-number">36</span><br><span class="line-number">37</span><br><span class="line-number">38</span><br><span class="line-number">39</span><br><span class="line-number">40</span><br><span class="line-number">41</span><br><span class="line-number">42</span><br><span class="line-number">43</span><br><span class="line-number">44</span><br><span class="line-number">45</span><br><span class="line-number">46</span><br><span class="line-number">47</span><br><span class="line-number">48</span><br><span class="line-number">49</span><br><span class="line-number">50</span><br><span class="line-number">51</span><br><span class="line-number">52</span><br><span class="line-number">53</span><br><span class="line-number">54</span><br><span class="line-number">55</span><br><span class="line-number">56</span><br><span class="line-number">57</span><br><span class="line-number">58</span><br><span class="line-number">59</span><br><span class="line-number">60</span><br><span class="line-number">61</span><br><span class="line-number">62</span><br><span class="line-number">63</span><br><span class="line-number">64</span><br><span class="line-number">65</span><br><span class="line-number">66</span><br><span class="line-number">67</span><br><span class="line-number">68</span><br></div></div><h2 id="配置和音频片段" tabindex="-1">配置和音频片段 <a class="header-anchor" href="#配置和音频片段" aria-label="Permalink to "配置和音频片段""></a></h2><table tabindex="0"><thead><tr><th>字段</th><th>默认值</th><th>含义</th></tr></thead><tbody><tr><td><code>length</code></td><td><code>3</code></td><td>从本次字幕按标点拆分的非空片段中保留最后多少段,不是音频秒数</td></tr><tr><td><code>interval</code></td><td><code>100</code></td><td>采集消费定时器间隔和每片音频的目标时长,单位毫秒</td></tr><tr><td><code>sampleRate</code></td><td><code>16000</code></td><td>请求的采样率,单位 Hz;需要环境支持</td></tr><tr><td><code>autoHideTimeout</code></td><td><code>10000</code></td><td>接受字幕后自动隐藏的等待时间,单位毫秒</td></tr><tr><td><code>onAudioChunk</code></td><td>返回 <code>null</code> 的函数</td><td>接收 <code>{ pcm, wav }</code>;返回字符串时显示字幕,可返回 Promise</td></tr><tr><td><code>audioInput</code></td><td>未设置</td><td>默认直接 Web Audio 路径;<code>{ type: 'capture' }</code> 显式选择捕获流</td></tr></tbody></table><p><code>pcm</code> 和 <code>wav</code> 都是 <code>ArrayBuffer</code>。音频来自第一声道,PCM 为有符号 16 位小端,WAV 包含 44 字节单声道头。每片样本数为 <code>Math.floor(sampleRate * interval / 1000)</code>,需要至少一个样本和正的有限 interval。实际回调频率受音频就绪、浏览器调度和识别耗时影响,不承诺精确间隔。</p><p>当前采集代内一次最多等待一个识别回调;未满一片的样本继续排队。回调拒绝会记录错误并允许后续处理。积压超过约一分钟音频或两片中较大的上限时,采集暂停并记录错误,避免无限占用内存。暂停、切源、停止或销毁使旧回调结果失效;插件不会取消应用已经发送的网络请求,应用应自行管理请求资源。</p><h2 id="字幕与生命周期" tabindex="-1">字幕与生命周期 <a class="header-anchor" href="#字幕与生命周期" aria-label="Permalink to "字幕与生命周期""></a></h2><p>插件结果在 <code>art.plugins.artplayerPluginAsr</code>,<code>name</code> 固定为 <code>artplayerPluginAsr</code>:</p><table tabindex="0"><thead><tr><th>方法</th><th>行为</th></tr></thead><tbody><tr><td><code>append(text)</code></td><td>同步返回 <code>undefined</code>;显示本次文本的最后 <code>length</code> 段并重置隐藏定时器,替换已有字幕,不累积历史</td></tr><tr><td><code>hide()</code></td><td>同步返回 <code>undefined</code>;隐藏字幕,不停止采集或清空文字</td></tr><tr><td><code>stop()</code></td><td>实际返回 <code>Promise<void></code>;停止本次采集并丢弃旧结果,之后的播放事件可以重新开始</td></tr></tbody></table><p><code>append</code> 和回调返回的字符串保留历史 HTML 渲染行为,不会自动转义。只传入可信字幕;识别服务返回的外部文字需要由应用转义或清理。<code>null</code>、<code>undefined</code> 或其他非字符串回调结果不会更新字幕。<code>stop()</code> 不立即隐藏已有字幕,原自动隐藏时间仍然有效。</p><p>播放事件启动采集,暂停停止记录并丢弃待处理结果,切源重新建立适用的采集状态,媒体错误执行非终止的停止。默认直接连接会保留视频的音频输出路线直到 <code>art.destroy()</code>,因此 stop 后仍可正常播放;这不是资源未清理。销毁释放插件监听器、定时器、录音资源和音频上下文。插件没有单独的公开 <code>start()</code> 或 <code>destroy()</code>。</p><h2 id="音频路径与跨域" tabindex="-1">音频路径与跨域 <a class="header-anchor" href="#音频路径与跨域" aria-label="Permalink to "音频路径与跨域""></a></h2><p>默认路径读取 <code>art.video</code>,不混合独立 Audio Track 插件的音轨;视频自身的音量和静音会影响所采音频。跨域媒体需要加载前设置 <code>moreVideoAttr: { crossOrigin: 'anonymous' }</code>,同时服务端提供允许的 CORS 响应。仅视频可播放不代表 Web Audio 可以读取:无访问权限时可能仍走时间但音频输出静音、产生全零数据或收不到片段,重定向后的跨域同样受限。</p><p>如果应用已有 Web Audio 图,请显式选择 <code>audioInput: { type: 'capture' }</code>。此模式通过 <code>captureStream/mozCaptureStream</code> 采集,不接管已有播放输出,也不会在失败时退回直接连接。它只释放自己创建的上下文和捕获轨道;暂停保留采集图,stop 或切源释放,后续播放重新获取。缺少能力或初始化失败会记录错误并清理资源。</p><p>捕获流数据可能不受视频音量或静音影响,不包含外部音效图或独立音轨的最终混音。CORS 仍适用:可能拒绝捕获,也可能有轨道却没有可读音频。不要把某个桌面浏览器通过解释为 Safari、手机、所有代理或物理扬声器均已验证。</p><h2 id="typescript-入口" tabindex="-1">TypeScript 入口 <a class="header-anchor" href="#typescript-入口" aria-label="Permalink to "TypeScript 入口""></a></h2><p>根入口保留历史 <code>AsrPluginOption</code>、<code>AsrPluginInstance</code> 和 <code>AudioChunk</code>:回调为 <code>void | Promise<void></code>,stop 为 void。要在类型中返回识别字符串、等待 stop 或设置捕获流,使用同一运行时实现的 <code>/runtime</code>:</p><div class="language-ts vp-adaptive-theme line-numbers-mode"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> asr </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> 'artplayer-plugin-asr/runtime'</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
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<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> type</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { RuntimeResult } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> 'artplayer-plugin-asr/runtime'</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
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<span class="line"></span>
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<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">const</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> installAsr</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> =</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> asr</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">({</span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> audioInput: { type: </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">'capture'</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> },</span></span>
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<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> onAudioChunk</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">({ </span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;">pcm</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;">wav</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> }) {</span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> console.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">log</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(pcm.byteLength, wav.byteLength);</span></span>
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<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> return</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> null</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">; </span><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// Replace with your recognizer; null displays no subtitle.</span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> },</span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">});</span></span>
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<span class="line"></span>
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<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">async</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> function</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> stopAsr</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;">plugin</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">:</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> RuntimeResult</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">:</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> Promise</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"><</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">void</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">> {</span></span>
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<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> await</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> plugin.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">stop</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">();</span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span></code></pre><div class="line-numbers-wrapper" aria-hidden="true"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br><span class="line-number">10</span><br><span class="line-number">11</span><br><span class="line-number">12</span><br><span class="line-number">13</span><br><span class="line-number">14</span><br></div></div><p>精确类型为 <code>RuntimeOption</code>、<code>RuntimeResult</code>、<code>RuntimeFactory</code>,并导出 <code>AudioChunk</code>。旧根入口在部分 NodeNext ESM 消费中保留模块命名空间形状;需要可调用默认导入时选择 <code>/runtime</code>。CommonJS 运行时同时支持函数本身和 <code>.default</code> 自引用,<code>/runtime</code> 也支持 TypeScript 的 <code>import = require</code>。</p></div></div></main><footer class="VPDocFooter" data-v-ef3a4dda data-v-07d71ff1><!--[--><!--]--><div class="edit-info" data-v-07d71ff1><div class="edit-link" data-v-07d71ff1><a class="VPLink link vp-external-link-icon no-icon edit-link-button" href="https://github.com/zhw2590582/ArtPlayer/tree/master/packages/artplayer-vitepress/docs/plugin/asr.md" target="_blank" rel="noreferrer" data-v-07d71ff1><!--[--><span class="vpi-square-pen edit-link-icon" data-v-07d71ff1></span> Edit this page on GitHub<!--]--></a></div><div class="last-updated" data-v-07d71ff1><p class="VPLastUpdated" data-v-07d71ff1 data-v-e95db471>Last updated: <time datetime="2026-09-15T18:45:57.000Z" data-v-e95db471></time></p></div></div><nav class="prev-next" aria-labelledby="doc-footer-aria-label" data-v-07d71ff1><span class="visually-hidden" id="doc-footer-aria-label" data-v-07d71ff1>Pager</span><div class="pager" data-v-07d71ff1><a class="VPLink link pager-link prev" href="/document/plugin/document-pip.html" data-v-07d71ff1><!--[--><span class="desc" data-v-07d71ff1>Previous page</span><span class="title" data-v-07d71ff1>文档画中画</span><!--]--></a></div><div class="pager" data-v-07d71ff1><a class="VPLink link pager-link next" href="/document/plugin/audio-track.html" data-v-07d71ff1><!--[--><span class="desc" data-v-07d71ff1>Next page</span><span class="title" data-v-07d71ff1>独立音轨</span><!--]--></a></div></nav></footer><!--[--><!--]--></div></div></div><!--[--><!--]--></div></div><!----><!--[--><!--]--></div></div>
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