[{"data":1,"prerenderedAt":535},["ShallowReactive",2],{"article:zh:browser-screen-share-audio-guide":3},{"article":4,"contentLocale":481,"resolvedSlug":7,"relatedArticles":482,"variants":495},{"id":5,"title":6,"baseSlug":7,"body":8,"date":471,"description":472,"extension":473,"indexable":474,"meta":475,"modified":476,"navigation":474,"path":477,"seo":478,"slug":7,"stem":479,"__hash__":480},"articles\u002Farticles\u002Fzh\u002Fbrowser-screen-share-audio-guide.md","如何在浏览器中带声音共享屏幕","browser-screen-share-audio-guide",{"type":9,"value":10,"toc":446},"minimark",[11,15,23,26,30,33,78,81,84,87,108,111,127,131,136,139,142,146,149,152,169,173,179,185,188,192,203,206,220,229,233,236,250,253,256,260,263,272,276,279,296,299,302,305,308,312,315,319,336,339,342,345,348,351,377,380,384,396,419,422],[12,13,14],"p",{},"浏览器带声音共享屏幕，并不是打开一个通用开关就能完成。结果取决于所选来源、浏览器和操作系统，以及该来源是否允许提供音轨。",[12,16,17,18,22],{},"在 SHare，一起观看通过实时屏幕共享进行：一个人分享浏览器标签页或支持的窗口，其他人在同一个房间观看这条流，同时使用视频、语音或文字聊天。SHare ",[19,20,21],"strong",{},"不会","同步各自独立的视频播放器，也不会绕过网站的内容保护规则。",[12,24,25],{},"本指南介绍更有可能同时成功分享画面与声音的设置方法，也说明房间看得到屏幕、却听不到声音时该检查什么。",[27,28,29],"h2",{"id":29},"快速操作步骤",[12,31,32],{},"想尽可能稳定地分享：",[34,35,36,40,43,46,57,64,75],"ol",{},[37,38,39],"li",{},"将你有权分享的内容单独放在一个浏览器标签页中。",[37,41,42],{},"通过桌面浏览器，使用 HTTPS 进入 SHare 房间。",[37,44,45],{},"开启麦克风之前，先戴上耳机。",[37,47,48,49,52,53,56],{},"动态视频选择",[19,50,51],{},"电影模式","，幻灯片和文字选择",[19,54,55],{},"演示模式","。",[37,58,59,60,63],{},"点击",[19,61,62],{},"共享屏幕","，选择内容标签页，而不是 SHare 标签页。",[37,65,66,67,70,71,74],{},"浏览器出现",[19,68,69],{},"共享标签页音频","、",[19,72,73],{},"同时共享音频","或同类选项时，将其开启。",[37,76,77],{},"其他人加入之前，先请一位朋友确认画面和声音都正常。",[12,79,80],{},"如果共享对话框没有提供音频选项，SHare 就无法凭空生成浏览器或所选来源没有提供的音轨。",[27,82,83],{"id":83},"为什么选择的来源很重要",[12,85,86],{},"浏览器可能提供几种采集来源：",[88,89,90,96,102],"ul",{},[37,91,92,95],{},[19,93,94],{},"浏览器标签页","：通常是分享网页视频时最值得先试的选择，兼容的浏览器可以把该标签页的音频与共享画面关联起来。",[37,97,98,101],{},[19,99,100],{},"应用窗口","：内容在其他应用中运行时很方便，但能否共享窗口音频，取决于浏览器与操作系统。",[37,103,104,107],{},[19,105,106],{},"整个屏幕","：适合跨应用演示，但音频结果最难预测，也可能暴露通知或其他私人信息。",[12,109,110],{},"SHare 会向浏览器请求屏幕音频，但有意排除整台设备的混合系统音频。这样可以减少把 SHare 房间里远端说话声再次采集并发回、造成回声的可能性。浏览器提供时，仍可包含受支持的标签页音频，以及受支持的独立窗口音频。",[12,112,113,114,126],{},"网页平台把音频视为可选项。即使网站同时请求视频和音频，浏览器也可能只返回视频流。",[115,116,120,121,125],"a",{"href":117,"rel":118},"https:\u002F\u002Fdeveloper.mozilla.org\u002Fen-US\u002Fdocs\u002FWeb\u002FAPI\u002FMediaDevices\u002FgetDisplayMedia",[119],"nofollow","MDN 的 ",[122,123,124],"code",{},"getDisplayMedia()"," 文档","说明，音频采集支持和可用来源在不同浏览器之间存在差异。",[27,128,130],{"id":129},"逐步在-share-中分享带声音的标签页","逐步在 SHare 中分享带声音的标签页",[132,133,135],"h3",{"id":134},"_1-准备内容","1. 准备内容",[12,137,138],{},"开始共享之前，先在独立标签页打开内容。关闭可能显示私人消息的标签页和应用。确认内容能在本地播放，且标签页没有静音。",[12,140,141],{},"只分享你有权展示的内容。一些受保护的视频服务会有意阻止采集，导致黑屏或无声。SHare 不会移除或绕过这些保护。",[132,143,145],{"id":144},"_2-准备房间音频","2. 准备房间音频",[12,147,148],{},"如果要开启麦克风，请使用耳机。没有耳机时，共享内容和其他参与者的声音可能从扬声器播放，再经麦克风传回。",[12,150,151],{},"第一次测试时，为了便于判断：",[88,153,154,157,160,163,166],{},[37,155,156],{},"先关闭房主麦克风；",[37,158,159],{},"开始屏幕共享；",[37,161,162],{},"播放十秒内容；",[37,164,165],{},"请一位观众确认结果；",[37,167,168],{},"然后再开启麦克风。",[132,170,172],{"id":171},"_3-选择合适的-share-模式","3. 选择合适的 SHare 模式",[12,174,175,176,178],{},"视频和其他动态较多的内容，使用",[19,177,51],{},"。SHare 会优先保持运动流畅，最高为 720p、每秒 30 帧。",[12,180,181,182,184],{},"幻灯片、文档、仪表板或文字，使用",[19,183,55],{},"。它优先保留细节，带宽受限时允许较低帧率。",[12,186,187],{},"这些模式只调整发送的共享流，不能补充浏览器没有采集的音轨。",[132,189,191],{"id":190},"_4-直接点击开始共享","4. 直接点击，开始共享",[12,193,194,195,197,198,56],{},"在房间内点击",[19,196,62],{},"。屏幕采集需要用户操作，浏览器每次都会请求权限，而不是存储永久批准。屏幕采集还要求 HTTPS 等安全上下文。这些限制属于浏览器 ",[115,199,202],{"href":200,"rel":201},"https:\u002F\u002Fdeveloper.mozilla.org\u002Fen-US\u002Fdocs\u002FWeb\u002FAPI\u002FMediaDevices\u002FgetDisplayMedia#security",[119],"Screen Capture API 的安全模型",[12,204,205],{},"在浏览器选择器中：",[34,207,208,211,214,217],{},[37,209,210],{},"选择包含内容的标签页或受支持窗口；",[37,212,213],{},"避免选择 SHare 房间本身；",[37,215,216],{},"如果显示共享音频复选框，将其开启；",[37,218,219],{},"确认共享。",[12,221,222,223,228],{},"Chrome 官方的",[115,224,227],{"href":225,"rel":226},"https:\u002F\u002Fdeveloper.chrome.com\u002Fdocs\u002Fextensions\u002Fhow-to\u002Fweb-platform\u002Fscreen-capture",[119],"屏幕采集文档","也说明，展示来源选择器、授予所选来源访问权限的是浏览器，而不是网站。",[132,230,232],{"id":231},"_5-从观众设备验证","5. 从观众设备验证",[12,234,235],{},"房主能在本地播放，并不能证明观众收到了音轨。请一位观众确认：",[88,237,238,241,244,247],{},[37,239,240],{},"画面可见；",[37,242,243],{},"能听到说话声或音乐；",[37,245,246],{},"音量舒适；",[37,248,249],{},"房间没有回声。",[12,251,252],{},"先和一个人测试。一次只改变一个条件，比让整群人同时调整设置快得多。",[27,254,255],{"id":255},"排查浏览器屏幕共享音频",[132,257,259],{"id":258},"屏幕可见但观众什么都听不到","屏幕可见，但观众什么都听不到",[12,261,262],{},"停止共享，重新打开选择器。选择内容标签页，查找音频复选框。确认标签页本身正在发声，而且没有静音。",[12,264,265,266,271],{},"如果没有音频选项，尝试支持所选来源音频的较新桌面浏览器，也可以从共享整个屏幕改为共享标签页。浏览器和操作系统之间仍然有差异；",[115,267,270],{"href":268,"rel":269},"https:\u002F\u002Fdeveloper.mozilla.org\u002Fen-US\u002Fdocs\u002FWeb\u002FAPI\u002FScreen_Capture_API\u002FUsing_Screen_Capture#capturing_shared_audio",[119],"MDN 的屏幕采集指南","明确提醒，请求的采集结果可能只有视频而没有音频。",[132,273,275],{"id":274},"观众听到回声或听到自己的声音","观众听到回声，或听到自己的声音",[12,277,278],{},"最常见的原因，是房主扬声器和麦克风之间的声学反馈。",[88,280,281,284,287,290,293],{},[37,282,283],{},"让房主戴上耳机。",[37,285,286],{},"降低所有开启麦克风设备的扬声器音量。",[37,288,289],{},"确保同一实际房间中只有一台设备的麦克风处于开启状态。",[37,291,292],{},"不要共享 SHare 房间标签页。",[37,294,295],{},"先关闭房主麦克风测试，再重新开启。",[12,297,298],{},"SHare 会为麦克风语音启用回声消除。电影模式的屏幕音频则尽量保留原貌，避免音乐和视频听起来像经过通话语音滤镜处理；耳机仍是最可靠的回声预防措施。",[132,300,301],{"id":301},"共享选择器始终不打开",[12,303,304],{},"确认你直接点击了房间的共享按钮，而且页面当前处于焦点状态。如果采集不是由当下的用户操作触发，浏览器可能拒绝。同时确认使用的是 HTTPS，并且浏览器或操作系统设置允许屏幕录制。",[12,306,307],{},"如果之前拒绝过权限，请检查浏览器的网站权限和操作系统的屏幕录制隐私设置，然后重试。",[132,309,311],{"id":310},"画面黑屏或受保护的视频消失","画面黑屏，或受保护的视频消失",[12,313,314],{},"先用正常页面，或你有权分享的未受保护本地演示进行测试。如果它正常，原来源可能有防采集保护。请尊重限制和来源服务的条款。修改 SHare 设置无法覆盖受保护播放的限制。",[132,316,318],{"id":317},"视频卡顿或文字看不清","视频卡顿，或文字看不清",[88,320,321,324,327,330,333],{},[37,322,323],{},"动态内容切换到电影模式，细节内容切换到演示模式。",[37,325,326],{},"暂停大型下载与云备份。",[37,328,329],{},"尽量使用稳定的有线网络，或信号良好的 Wi-Fi。",[37,331,332],{},"关闭不必要、占用较多 CPU 的标签页和应用。",[37,334,335],{},"分享一个标签页或窗口，而不是整个高分辨率屏幕。",[12,337,338],{},"SHare 会发布较低分辨率的备用层，让网络较弱的观众有机会继续观看；但房主仍需要足够的上传能力，才能稳定发送来源流。",[132,340,341],{"id":341},"手机上没有屏幕共享功能",[12,343,344],{},"手机屏幕采集支持随浏览器、操作系统和当前应用环境而不同。如果共享按钮不可用，请使用支持的桌面浏览器作为分享端。朋友仍可以通过网页、iPhone 或 Android 加入房间，观看、聊天和玩游戏；负责分享屏幕的设备要求更严格。",[27,346,347],{"id":347},"三十秒预检清单",[12,349,350],{},"邀请所有人之前，确认：",[88,352,353,356,359,362,365,368,371,374],{},[37,354,355],{},"内容可以合法分享；",[37,357,358],{},"房主已戴耳机；",[37,360,361],{},"内容位于独立标签页或窗口；",[37,363,364],{},"已选择合适的 SHare 模式；",[37,366,367],{},"浏览器提供音频复选框时，已经开启；",[37,369,370],{},"一位观众确实收到画面和声音；",[37,372,373],{},"没有参与者听到回声；",[37,375,376],{},"通知与私人窗口已经隐藏。",[12,378,379],{},"测试通过后，再把房间链接或六位房间码发送给其他人。",[27,381,383],{"id":382},"在同一个房间观看聊天和玩游戏","在同一个房间观看、聊天和玩游戏",[12,385,386,390,391,395],{},[115,387,389],{"href":388},"\u002Fzh\u002Fwatch-together","了解 SHare 如何一起观看","，包括不公开列出的房间邀请、视频／语音／文字聊天、设备支持，以及屏幕共享与同步播放的区别。大家想换个节奏时，还可以",[115,392,394],{"href":393},"\u002Fzh\u002Fgames","打开实时房间游戏","，不用离开正在进行的交流。",[12,397,398,399,403,404,408,409,413,414,418],{},"接下来可以使用",[115,400,402],{"href":401},"\u002Fzh\u002Farticle\u002Fwatch-together-no-download","免下载一起观看设置指南","，在预检时打开",[115,405,407],{"href":406},"\u002Fzh\u002Farticle\u002Fmovie-night-checklist","线上电影之夜清单","，或根据",[115,410,412],{"href":411},"\u002Fzh\u002Farticle\u002Fwatch-party-for-long-distance-couples","异地情侣观影约会指南","安排一次安静的约会。所有已发布资源也可以在 ",[115,415,417],{"href":416},"\u002Fzh\u002Fguides","SHare 指南中心","找到。",[27,420,421],{"id":421},"参考资料",[88,423,424,433,440],{},[37,425,426],{},[115,427,429,430],{"href":117,"rel":428},[119],"MDN：",[122,431,432],{},"MediaDevices.getDisplayMedia()",[37,434,435],{},[115,436,439],{"href":437,"rel":438},"https:\u002F\u002Fdeveloper.mozilla.org\u002Fen-US\u002Fdocs\u002FWeb\u002FAPI\u002FScreen_Capture_API\u002FUsing_Screen_Capture",[119],"MDN：使用 Screen Capture API",[37,441,442],{},[115,443,445],{"href":225,"rel":444},[119],"Chrome for Developers：音频录制与屏幕采集",{"title":447,"searchDepth":448,"depth":448,"links":449},"",2,[450,451,452,460,468,469,470],{"id":29,"depth":448,"text":29},{"id":83,"depth":448,"text":83},{"id":129,"depth":448,"text":130,"children":453},[454,456,457,458,459],{"id":134,"depth":455,"text":135},3,{"id":144,"depth":455,"text":145},{"id":171,"depth":455,"text":172},{"id":190,"depth":455,"text":191},{"id":231,"depth":455,"text":232},{"id":255,"depth":448,"text":255,"children":461},[462,463,464,465,466,467],{"id":258,"depth":455,"text":259},{"id":274,"depth":455,"text":275},{"id":301,"depth":455,"text":301},{"id":310,"depth":455,"text":311},{"id":317,"depth":455,"text":318},{"id":341,"depth":455,"text":341},{"id":347,"depth":448,"text":347},{"id":382,"depth":448,"text":383},{"id":421,"depth":448,"text":421},"2026-04-29","了解 SHare 浏览器屏幕共享的音频工作方式、如何选择来源，以及如何排查无声、回声、权限和黑屏问题。","md",true,{},"2026-08-27","\u002Farticles\u002Fzh\u002Fbrowser-screen-share-audio-guide",{"title":6,"description":472},"articles\u002Fzh\u002Fbrowser-screen-share-audio-guide","SJMKX6qW7UHLWua-DEuAZzSNqOX-mmJbndRScdm0UzQ","zh",[483,487,491],{"slug":484,"title":485,"description":486},"screen-sharing-vs-synchronized-watch-party","屏幕共享与同步观影：该如何选择","比较屏幕共享和各自播放器同步观影的区别。在在线电影之夜开始前，了解播放控制、声音、设备支持与内容访问要求。",{"slug":488,"title":489,"description":490},"audio-echo-fixes","屏幕共享时如何解决回声和声音重复","听到自己的声音返回，或影片声音播放两遍？通过简单测试，找出 SHare 房间中造成回声的麦克风、重复设备或共享标签页。",{"slug":492,"title":493,"description":494},"watch-movies-phone-and-computer","如何用手机和电脑一起看电影","用 SHare 在手机和电脑之间组织电影之夜：选择分享设备、邀请朋友、共享支持的音频，并从观众设备检查画面。",[496,498,501,504,507,510,512,515,518,521,524,527,530,531,533],{"locale":497,"slug":7},"en",{"locale":499,"slug":500},"tr","rehber-browser-screen-share-audio-guide",{"locale":502,"slug":503},"de","leitfaden-browser-screen-share-audio-guide",{"locale":505,"slug":506},"ar","dalil-browser-screen-share-audio-guide",{"locale":508,"slug":509},"es","guia-browser-screen-share-audio-guide",{"locale":511,"slug":509},"pt",{"locale":513,"slug":514},"id","panduan-browser-screen-share-audio-guide",{"locale":516,"slug":517},"fr","guide-browser-screen-share-audio-guide",{"locale":519,"slug":520},"it","guida-browser-screen-share-audio-guide",{"locale":522,"slug":523},"uk","hid-browser-screen-share-audio-guide",{"locale":525,"slug":526},"ru","gayd-browser-screen-share-audio-guide",{"locale":528,"slug":529},"ko","gaideu-browser-screen-share-audio",{"locale":481,"slug":7},{"locale":532,"slug":7},"ja",{"locale":534,"slug":7},"hi",1791720132852]