[{"data":1,"prerenderedAt":1767},["ShallowReactive",2],{"docs-navigation":3,"\u002Fzh-Hans\u002Fdocs\u002Ftroubleshooting\u002Fdash-no-audio":794,"\u002Fzh-Hans\u002Fdocs\u002Ftroubleshooting\u002Fdash-no-audio-surround":1762},[4,187,340,493,645],{"title":5,"path":6,"stem":7,"children":8,"page":32},"Docs","\u002Fdocs","1.docs",[9,33,79,100,139,171],{"title":10,"path":11,"stem":12,"children":13,"icon":32},"Getting Started","\u002Fdocs\u002Fgetting-started","1.docs\u002F1.getting-started\u002F1.index",[14,17,22,27],{"title":15,"path":11,"stem":12,"icon":16},"Introduction","i-lucide-house",{"title":18,"path":19,"stem":20,"icon":21},"Installation","\u002Fdocs\u002Fgetting-started\u002Finstallation","1.docs\u002F1.getting-started\u002F2.installation","i-lucide-download",{"title":23,"path":24,"stem":25,"icon":26},"Usage Guide","\u002Fdocs\u002Fgetting-started\u002Fusage","1.docs\u002F1.getting-started\u002F3.usage","i-lucide-sliders",{"title":28,"path":29,"stem":30,"icon":31},"Configuration Reference","\u002Fdocs\u002Fgetting-started\u002Fconfiguration","1.docs\u002F1.getting-started\u002F4.configuration","i-lucide-settings",false,{"title":34,"icon":35,"path":36,"stem":37,"children":38,"page":32},"Features","i-lucide-star","\u002Fdocs\u002Ffeatures","1.docs\u002F2.features",[39,44,49,54,59,64,69,74],{"title":40,"path":41,"stem":42,"icon":43},"Video Sniffing","\u002Fdocs\u002Ffeatures\u002Fvideo-sniffing","1.docs\u002F2.features\u002F1.video-sniffing","i-lucide-video",{"title":45,"path":46,"stem":47,"icon":48},"Audio Capture","\u002Fdocs\u002Ffeatures\u002Faudio-capture","1.docs\u002F2.features\u002F2.audio-capture","i-lucide-music",{"title":50,"path":51,"stem":52,"icon":53},"Image Download","\u002Fdocs\u002Ffeatures\u002Fimage-download","1.docs\u002F2.features\u002F3.image-download","i-lucide-image",{"title":55,"path":56,"stem":57,"icon":58},"Privacy & Security","\u002Fdocs\u002Ffeatures\u002Fprivacy-security","1.docs\u002F2.features\u002F4.privacy-security","i-lucide-shield-check",{"title":60,"path":61,"stem":62,"icon":63},"Format Conversion","\u002Fdocs\u002Ffeatures\u002Fformat-conversion","1.docs\u002F2.features\u002F5.format-conversion","i-lucide-arrow-left-right",{"title":65,"path":66,"stem":67,"icon":68},"Batch Download","\u002Fdocs\u002Ffeatures\u002Fbatch-download","1.docs\u002F2.features\u002F6.batch-download","i-lucide-layers",{"title":70,"path":71,"stem":72,"icon":73},"Keyboard Shortcuts","\u002Fdocs\u002Ffeatures\u002Fkeyboard-shortcuts","1.docs\u002F2.features\u002F7.keyboard-shortcuts","i-lucide-keyboard",{"title":75,"path":76,"stem":77,"icon":78},"Search & Filter","\u002Fdocs\u002Ffeatures\u002Fsearch-filter","1.docs\u002F2.features\u002F8.search-filter","i-lucide-search",{"title":80,"icon":81,"path":82,"stem":83,"children":84,"page":32},"Advanced","i-lucide-book-open","\u002Fdocs\u002Fadvanced","1.docs\u002F3.advanced",[85,90,95],{"title":86,"path":87,"stem":88,"icon":89},"Online Tools","\u002Fdocs\u002Fadvanced\u002Fonline-tools","1.docs\u002F3.advanced\u002F1.online-tools","i-lucide-globe",{"title":91,"path":92,"stem":93,"icon":94},"Browser Compatibility","\u002Fdocs\u002Fadvanced\u002Fbrowser-compatibility","1.docs\u002F3.advanced\u002F2.browser-compatibility","i-lucide-monitor-check",{"title":96,"path":97,"stem":98,"icon":99},"Download Engine Architecture","\u002Fdocs\u002Fadvanced\u002Fdownload-engine","1.docs\u002F3.advanced\u002F3.download-engine","i-lucide-cpu",{"title":101,"icon":102,"path":103,"stem":104,"children":105,"page":32},"Use Cases","i-lucide-lightbulb","\u002Fdocs\u002Fusecases","1.docs\u002F4.usecases",[106,111,115,120,125,129,134],{"title":107,"path":108,"stem":109,"icon":110},"Online Course Video Downloader for Offline Learning","\u002Fdocs\u002Fusecases\u002Fonline-courses","1.docs\u002F4.usecases\u002F1.online-courses","i-lucide-graduation-cap",{"title":112,"path":113,"stem":114,"icon":43},"Video Platform Stream Downloader for Public Media","\u002Fdocs\u002Fusecases\u002Fvideo-platforms","1.docs\u002F4.usecases\u002F2.video-platforms",{"title":116,"path":117,"stem":118,"icon":119},"Live Replay Downloader for Large Streaming Videos","\u002Fdocs\u002Fusecases\u002Flive-replays","1.docs\u002F4.usecases\u002F3.live-replays","i-lucide-radio",{"title":121,"path":122,"stem":123,"icon":124},"Podcast and Audio Downloader for Offline Listening","\u002Fdocs\u002Fusecases\u002Fpodcasts-audio","1.docs\u002F4.usecases\u002F4.podcasts-audio","i-lucide-headphones",{"title":126,"path":127,"stem":128,"icon":53},"Bulk Image Downloader for Web Galleries and Wallpapers","\u002Fdocs\u002Fusecases\u002Fimage-galleries","1.docs\u002F4.usecases\u002F5.image-galleries",{"title":130,"path":131,"stem":132,"icon":133},"Internal Training Video Downloader for Intranet Content","\u002Fdocs\u002Fusecases\u002Fcorporate-training","1.docs\u002F4.usecases\u002F6.corporate-training","i-lucide-building-2",{"title":135,"path":136,"stem":137,"icon":138},"Personal Media Downloader for Video, Audio and Images","\u002Fdocs\u002Fusecases\u002Fpersonal-archiving","1.docs\u002F4.usecases\u002F7.personal-archiving","i-lucide-archive",{"title":140,"icon":141,"path":142,"stem":143,"children":144,"page":32},"Troubleshooting","i-lucide-wrench","\u002Fdocs\u002Ftroubleshooting","1.docs\u002F5.troubleshooting",[145,149,154,159,163,167],{"title":146,"path":147,"stem":148,"icon":141},"Common Issues Troubleshooting","\u002Fdocs\u002Ftroubleshooting\u002Fcommon-issues","1.docs\u002F5.troubleshooting\u002F1.common-issues",{"title":150,"path":151,"stem":152,"icon":153},"Known Limitations & Caveats","\u002Fdocs\u002Ftroubleshooting\u002Fknown-issues","1.docs\u002F5.troubleshooting\u002F2.known-issues","i-lucide-alert-triangle",{"title":155,"path":156,"stem":157,"icon":158},"FAQ","\u002Fdocs\u002Ftroubleshooting\u002Ffaq","1.docs\u002F5.troubleshooting\u002F3.faq","i-lucide-message-circle-question",{"title":160,"path":161,"stem":162,"icon":141},"M3U8 Download Failed: HLS Troubleshooting","\u002Fdocs\u002Ftroubleshooting\u002Fm3u8-download-failed","1.docs\u002F5.troubleshooting\u002F4.m3u8-download-failed",{"title":164,"path":165,"stem":166,"icon":141},"DASH Video Has No Audio: MPD Troubleshooting","\u002Fdocs\u002Ftroubleshooting\u002Fdash-no-audio","1.docs\u002F5.troubleshooting\u002F5.dash-no-audio",{"title":168,"path":169,"stem":170,"icon":141},"Direct Video Download Failed: MP4 and WebM Troubleshooting","\u002Fdocs\u002Ftroubleshooting\u002Fdirect-video-download","1.docs\u002F5.troubleshooting\u002F6.direct-video-download",{"title":172,"icon":173,"path":174,"stem":175,"children":176,"page":32},"Developer Docs","i-lucide-code","\u002Fdocs\u002Fdeveloper","1.docs\u002F6.developer",[177,182],{"title":178,"path":179,"stem":180,"icon":181},"Contributing Guide","\u002Fdocs\u002Fdeveloper\u002Fcontributing","1.docs\u002F6.developer\u002F1.contributing","i-lucide-git-pull-request",{"title":183,"path":184,"stem":185,"icon":186},"Project Architecture","\u002Fdocs\u002Fdeveloper\u002Farchitecture","1.docs\u002F6.developer\u002F2.architecture","i-lucide-box",{"title":188,"path":189,"stem":190,"children":191,"page":32},"Ja","\u002Fja","ja",[192,211,248,265,298,327],{"title":193,"path":194,"stem":195,"children":196,"icon":32},"クイックスタート","\u002Fja\u002Fgetting-started","ja\u002F1.getting-started\u002F1.index",[197,199,203,207],{"title":198,"path":194,"stem":195,"icon":16},"概要",{"title":200,"path":201,"stem":202,"icon":21},"インストール","\u002Fja\u002Fgetting-started\u002Finstallation","ja\u002F1.getting-started\u002F2.installation",{"title":204,"path":205,"stem":206,"icon":26},"使用方法","\u002Fja\u002Fgetting-started\u002Fusage","ja\u002F1.getting-started\u002F3.usage",{"title":208,"path":209,"stem":210,"icon":31},"設定リファレンス","\u002Fja\u002Fgetting-started\u002Fconfiguration","ja\u002F1.getting-started\u002F4.configuration",{"title":212,"icon":35,"path":213,"stem":214,"children":215,"page":32},"機能","\u002Fja\u002Ffeatures","ja\u002F2.features",[216,220,224,228,232,236,240,244],{"title":217,"path":218,"stem":219,"icon":43},"動画検知","\u002Fja\u002Ffeatures\u002Fvideo-sniffing","ja\u002F2.features\u002F1.video-sniffing",{"title":221,"path":222,"stem":223,"icon":48},"音声キャプチャ","\u002Fja\u002Ffeatures\u002Faudio-capture","ja\u002F2.features\u002F2.audio-capture",{"title":225,"path":226,"stem":227,"icon":53},"画像ダウンロード","\u002Fja\u002Ffeatures\u002Fimage-download","ja\u002F2.features\u002F3.image-download",{"title":229,"path":230,"stem":231,"icon":58},"プライバシーとセキュリティ","\u002Fja\u002Ffeatures\u002Fprivacy-security","ja\u002F2.features\u002F4.privacy-security",{"title":233,"path":234,"stem":235,"icon":63},"フォーマット変換","\u002Fja\u002Ffeatures\u002Fformat-conversion","ja\u002F2.features\u002F5.format-conversion",{"title":237,"path":238,"stem":239,"icon":68},"一括ダウンロード","\u002Fja\u002Ffeatures\u002Fbatch-download","ja\u002F2.features\u002F6.batch-download",{"title":241,"path":242,"stem":243,"icon":73},"キーボードショートカット","\u002Fja\u002Ffeatures\u002Fkeyboard-shortcuts","ja\u002F2.features\u002F7.keyboard-shortcuts",{"title":245,"path":246,"stem":247,"icon":78},"検索とフィルタ","\u002Fja\u002Ffeatures\u002Fsearch-filter","ja\u002F2.features\u002F8.search-filter",{"title":249,"icon":81,"path":250,"stem":251,"children":252,"page":32},"詳細情報","\u002Fja\u002Fadvanced","ja\u002F3.advanced",[253,257,261],{"title":254,"path":255,"stem":256,"icon":89},"オンラインツール","\u002Fja\u002Fadvanced\u002Fonline-tools","ja\u002F3.advanced\u002F1.online-tools",{"title":258,"path":259,"stem":260,"icon":94},"ブラウザ互換性","\u002Fja\u002Fadvanced\u002Fbrowser-compatibility","ja\u002F3.advanced\u002F2.browser-compatibility",{"title":262,"path":263,"stem":264,"icon":99},"ダウンロードエンジンアーキテクチャ","\u002Fja\u002Fadvanced\u002Fdownload-engine","ja\u002F3.advanced\u002F3.download-engine",{"title":266,"icon":102,"path":267,"stem":268,"children":269,"page":32},"ユースケース","\u002Fja\u002Fusecases","ja\u002F4.usecases",[270,274,278,282,286,290,294],{"title":271,"path":272,"stem":273,"icon":110},"オンライン講座の動画保存とオフライン学習","\u002Fja\u002Fusecases\u002Fonline-courses","ja\u002F4.usecases\u002F1.online-courses",{"title":275,"path":276,"stem":277,"icon":43},"動画プラットフォームのストリーム保存と素材収集","\u002Fja\u002Fusecases\u002Fvideo-platforms","ja\u002F4.usecases\u002F2.video-platforms",{"title":279,"path":280,"stem":281,"icon":119},"ライブ配信アーカイブの保存と大容量動画ダウンロード","\u002Fja\u002Fusecases\u002Flive-replays","ja\u002F4.usecases\u002F3.live-replays",{"title":283,"path":284,"stem":285,"icon":124},"ポッドキャスト・Web音声の保存とオフライン再生","\u002Fja\u002Fusecases\u002Fpodcasts-audio","ja\u002F4.usecases\u002F4.podcasts-audio",{"title":287,"path":288,"stem":289,"icon":53},"画像ギャラリー・壁紙の一括ダウンロード","\u002Fja\u002Fusecases\u002Fimage-galleries","ja\u002F4.usecases\u002F5.image-galleries",{"title":291,"path":292,"stem":293,"icon":133},"社内研修動画とイントラネット配信の保存","\u002Fja\u002Fusecases\u002Fcorporate-training","ja\u002F4.usecases\u002F6.corporate-training",{"title":295,"path":296,"stem":297,"icon":138},"動画・音声・画像の個人メディア保存と整理","\u002Fja\u002Fusecases\u002Fpersonal-archiving","ja\u002F4.usecases\u002F7.personal-archiving",{"title":299,"icon":141,"path":300,"stem":301,"children":302,"page":32},"トラブルシューティング","\u002Fja\u002Ftroubleshooting","ja\u002F5.troubleshooting",[303,307,311,315,319,323],{"title":304,"path":305,"stem":306,"icon":141},"一般的な問題のトラブルシューティング","\u002Fja\u002Ftroubleshooting\u002Fcommon-issues","ja\u002F5.troubleshooting\u002F1.common-issues",{"title":308,"path":309,"stem":310,"icon":153},"既知の制限事項と注意点","\u002Fja\u002Ftroubleshooting\u002Fknown-issues","ja\u002F5.troubleshooting\u002F2.known-issues",{"title":312,"path":313,"stem":314,"icon":158},"よくある質問","\u002Fja\u002Ftroubleshooting\u002Ffaq","ja\u002F5.troubleshooting\u002F3.faq",{"title":316,"path":317,"stem":318,"icon":141},"M3U8ダウンロードに失敗する場合の対処法","\u002Fja\u002Ftroubleshooting\u002Fm3u8-download-failed","ja\u002F5.troubleshooting\u002F4.m3u8-download-failed",{"title":320,"path":321,"stem":322,"icon":141},"DASH動画に音声がない場合の対処法","\u002Fja\u002Ftroubleshooting\u002Fdash-no-audio","ja\u002F5.troubleshooting\u002F5.dash-no-audio",{"title":324,"path":325,"stem":326,"icon":141},"動画の直リンクをダウンロードできない場合","\u002Fja\u002Ftroubleshooting\u002Fdirect-video-download","ja\u002F5.troubleshooting\u002F6.direct-video-download",{"title":328,"icon":173,"path":329,"stem":330,"children":331,"page":32},"開発者ガイド","\u002Fja\u002Fdeveloper","ja\u002F6.developer",[332,336],{"title":333,"path":334,"stem":335,"icon":181},"貢献ガイド","\u002Fja\u002Fdeveloper\u002Fcontributing","ja\u002F6.developer\u002F1.contributing",{"title":337,"path":338,"stem":339,"icon":186},"プロジェクトアーキテクチャ","\u002Fja\u002Fdeveloper\u002Farchitecture","ja\u002F6.developer\u002F2.architecture",{"title":341,"path":342,"stem":343,"children":344,"page":32},"Ko","\u002Fko","ko",[345,364,401,418,451,480],{"title":346,"path":347,"stem":348,"children":349,"icon":32},"빠른 시작","\u002Fko\u002Fgetting-started","ko\u002F1.getting-started\u002F1.index",[350,352,356,360],{"title":351,"path":347,"stem":348,"icon":16},"소개",{"title":353,"path":354,"stem":355,"icon":21},"설치","\u002Fko\u002Fgetting-started\u002Finstallation","ko\u002F1.getting-started\u002F2.installation",{"title":357,"path":358,"stem":359,"icon":26},"사용 방법","\u002Fko\u002Fgetting-started\u002Fusage","ko\u002F1.getting-started\u002F3.usage",{"title":361,"path":362,"stem":363,"icon":31},"설정 참조","\u002Fko\u002Fgetting-started\u002Fconfiguration","ko\u002F1.getting-started\u002F4.configuration",{"title":365,"icon":35,"path":366,"stem":367,"children":368,"page":32},"기능","\u002Fko\u002Ffeatures","ko\u002F2.features",[369,373,377,381,385,389,393,397],{"title":370,"path":371,"stem":372,"icon":43},"비디오 스니핑","\u002Fko\u002Ffeatures\u002Fvideo-sniffing","ko\u002F2.features\u002F1.video-sniffing",{"title":374,"path":375,"stem":376,"icon":48},"오디오 캡처","\u002Fko\u002Ffeatures\u002Faudio-capture","ko\u002F2.features\u002F2.audio-capture",{"title":378,"path":379,"stem":380,"icon":53},"이미지 다운로드","\u002Fko\u002Ffeatures\u002Fimage-download","ko\u002F2.features\u002F3.image-download",{"title":382,"path":383,"stem":384,"icon":58},"개인정보 보호와 보안","\u002Fko\u002Ffeatures\u002Fprivacy-security","ko\u002F2.features\u002F4.privacy-security",{"title":386,"path":387,"stem":388,"icon":63},"포맷 변환","\u002Fko\u002Ffeatures\u002Fformat-conversion","ko\u002F2.features\u002F5.format-conversion",{"title":390,"path":391,"stem":392,"icon":68},"일괄 다운로드","\u002Fko\u002Ffeatures\u002Fbatch-download","ko\u002F2.features\u002F6.batch-download",{"title":394,"path":395,"stem":396,"icon":73},"키보드 단축키","\u002Fko\u002Ffeatures\u002Fkeyboard-shortcuts","ko\u002F2.features\u002F7.keyboard-shortcuts",{"title":398,"path":399,"stem":400,"icon":78},"검색과 필터링","\u002Fko\u002Ffeatures\u002Fsearch-filter","ko\u002F2.features\u002F8.search-filter",{"title":402,"icon":81,"path":403,"stem":404,"children":405,"page":32},"고급 가이드","\u002Fko\u002Fadvanced","ko\u002F3.advanced",[406,410,414],{"title":407,"path":408,"stem":409,"icon":89},"온라인 도구","\u002Fko\u002Fadvanced\u002Fonline-tools","ko\u002F3.advanced\u002F1.online-tools",{"title":411,"path":412,"stem":413,"icon":94},"브라우저 호환성","\u002Fko\u002Fadvanced\u002Fbrowser-compatibility","ko\u002F3.advanced\u002F2.browser-compatibility",{"title":415,"path":416,"stem":417,"icon":99},"다운로드 엔진 아키텍처","\u002Fko\u002Fadvanced\u002Fdownload-engine","ko\u002F3.advanced\u002F3.download-engine",{"title":419,"icon":102,"path":420,"stem":421,"children":422,"page":32},"사용 사례","\u002Fko\u002Fusecases","ko\u002F4.usecases",[423,427,431,435,439,443,447],{"title":424,"path":425,"stem":426,"icon":110},"온라인 강의 동영상 다운로드와 오프라인 학습","\u002Fko\u002Fusecases\u002Fonline-courses","ko\u002F4.usecases\u002F1.online-courses",{"title":428,"path":429,"stem":430,"icon":43},"동영상 플랫폼 스트리밍 다운로드와 콘텐츠 수집","\u002Fko\u002Fusecases\u002Fvideo-platforms","ko\u002F4.usecases\u002F2.video-platforms",{"title":432,"path":433,"stem":434,"icon":119},"라이브 다시보기 다운로드와 대용량 스트리밍 저장","\u002Fko\u002Fusecases\u002Flive-replays","ko\u002F4.usecases\u002F3.live-replays",{"title":436,"path":437,"stem":438,"icon":124},"팟캐스트와 웹 오디오 다운로드","\u002Fko\u002Fusecases\u002Fpodcasts-audio","ko\u002F4.usecases\u002F4.podcasts-audio",{"title":440,"path":441,"stem":442,"icon":53},"웹 갤러리와 배경화면 이미지 일괄 다운로드","\u002Fko\u002Fusecases\u002Fimage-galleries","ko\u002F4.usecases\u002F5.image-galleries",{"title":444,"path":445,"stem":446,"icon":133},"사내 교육 동영상과 인트라넷 스트리밍 다운로드","\u002Fko\u002Fusecases\u002Fcorporate-training","ko\u002F4.usecases\u002F6.corporate-training",{"title":448,"path":449,"stem":450,"icon":138},"동영상·오디오·이미지 개인 미디어 보관","\u002Fko\u002Fusecases\u002Fpersonal-archiving","ko\u002F4.usecases\u002F7.personal-archiving",{"title":452,"icon":141,"path":453,"stem":454,"children":455,"page":32},"문제 해결","\u002Fko\u002Ftroubleshooting","ko\u002F5.troubleshooting",[456,460,464,468,472,476],{"title":457,"path":458,"stem":459,"icon":141},"일반적인 문제 해결","\u002Fko\u002Ftroubleshooting\u002Fcommon-issues","ko\u002F5.troubleshooting\u002F1.common-issues",{"title":461,"path":462,"stem":463,"icon":153},"알려진 제한 사항 및 주의사항","\u002Fko\u002Ftroubleshooting\u002Fknown-issues","ko\u002F5.troubleshooting\u002F2.known-issues",{"title":465,"path":466,"stem":467,"icon":158},"자주 묻는 질문","\u002Fko\u002Ftroubleshooting\u002Ffaq","ko\u002F5.troubleshooting\u002F3.faq",{"title":469,"path":470,"stem":471,"icon":141},"M3U8 다운로드 실패 해결 방법","\u002Fko\u002Ftroubleshooting\u002Fm3u8-download-failed","ko\u002F5.troubleshooting\u002F4.m3u8-download-failed",{"title":473,"path":474,"stem":475,"icon":141},"DASH 동영상에 소리가 없을 때 해결 방법","\u002Fko\u002Ftroubleshooting\u002Fdash-no-audio","ko\u002F5.troubleshooting\u002F5.dash-no-audio",{"title":477,"path":478,"stem":479,"icon":141},"동영상 직링크 다운로드 실패 해결 방법","\u002Fko\u002Ftroubleshooting\u002Fdirect-video-download","ko\u002F5.troubleshooting\u002F6.direct-video-download",{"title":481,"icon":173,"path":482,"stem":483,"children":484,"page":32},"개발자 문서","\u002Fko\u002Fdeveloper","ko\u002F6.developer",[485,489],{"title":486,"path":487,"stem":488,"icon":181},"기여 가이드라인","\u002Fko\u002Fdeveloper\u002Fcontributing","ko\u002F6.developer\u002F1.contributing",{"title":490,"path":491,"stem":492,"icon":186},"프로젝트 아키텍처","\u002Fko\u002Fdeveloper\u002Farchitecture","ko\u002F6.developer\u002F2.architecture",{"title":494,"path":495,"stem":496,"children":497,"page":32},"Zh Hans","\u002Fzh-hans","zh-Hans",[498,516,553,570,603,632],{"title":499,"path":500,"stem":501,"children":502,"icon":32},"快速开始","\u002Fzh-hans\u002Fgetting-started","zh-Hans\u002F1.getting-started\u002F1.index",[503,505,509,512],{"title":504,"path":500,"stem":501,"icon":16},"简介",{"title":506,"path":507,"stem":508,"icon":21},"安装","\u002Fzh-hans\u002Fgetting-started\u002Finstallation","zh-Hans\u002F1.getting-started\u002F2.installation",{"title":204,"path":510,"stem":511,"icon":26},"\u002Fzh-hans\u002Fgetting-started\u002Fusage","zh-Hans\u002F1.getting-started\u002F3.usage",{"title":513,"path":514,"stem":515,"icon":31},"配置参考","\u002Fzh-hans\u002Fgetting-started\u002Fconfiguration","zh-Hans\u002F1.getting-started\u002F4.configuration",{"title":517,"icon":35,"path":518,"stem":519,"children":520,"page":32},"功能特性","\u002Fzh-hans\u002Ffeatures","zh-Hans\u002F2.features",[521,525,529,533,537,541,545,549],{"title":522,"path":523,"stem":524,"icon":43},"视频嗅探","\u002Fzh-hans\u002Ffeatures\u002Fvideo-sniffing","zh-Hans\u002F2.features\u002F1.video-sniffing",{"title":526,"path":527,"stem":528,"icon":48},"音频捕获","\u002Fzh-hans\u002Ffeatures\u002Faudio-capture","zh-Hans\u002F2.features\u002F2.audio-capture",{"title":530,"path":531,"stem":532,"icon":53},"图片下载","\u002Fzh-hans\u002Ffeatures\u002Fimage-download","zh-Hans\u002F2.features\u002F3.image-download",{"title":534,"path":535,"stem":536,"icon":58},"隐私与安全","\u002Fzh-hans\u002Ffeatures\u002Fprivacy-security","zh-Hans\u002F2.features\u002F4.privacy-security",{"title":538,"path":539,"stem":540,"icon":63},"格式转换","\u002Fzh-hans\u002Ffeatures\u002Fformat-conversion","zh-Hans\u002F2.features\u002F5.format-conversion",{"title":542,"path":543,"stem":544,"icon":68},"批量下载","\u002Fzh-hans\u002Ffeatures\u002Fbatch-download","zh-Hans\u002F2.features\u002F6.batch-download",{"title":546,"path":547,"stem":548,"icon":73},"键盘快捷键","\u002Fzh-hans\u002Ffeatures\u002Fkeyboard-shortcuts","zh-Hans\u002F2.features\u002F7.keyboard-shortcuts",{"title":550,"path":551,"stem":552,"icon":78},"搜索与筛选","\u002Fzh-hans\u002Ffeatures\u002Fsearch-filter","zh-Hans\u002F2.features\u002F8.search-filter",{"title":554,"icon":81,"path":555,"stem":556,"children":557,"page":32},"高级指南","\u002Fzh-hans\u002Fadvanced","zh-Hans\u002F3.advanced",[558,562,566],{"title":559,"path":560,"stem":561,"icon":89},"在线工具","\u002Fzh-hans\u002Fadvanced\u002Fonline-tools","zh-Hans\u002F3.advanced\u002F1.online-tools",{"title":563,"path":564,"stem":565,"icon":94},"浏览器兼容性","\u002Fzh-hans\u002Fadvanced\u002Fbrowser-compatibility","zh-Hans\u002F3.advanced\u002F2.browser-compatibility",{"title":567,"path":568,"stem":569,"icon":99},"下载引擎架构","\u002Fzh-hans\u002Fadvanced\u002Fdownload-engine","zh-Hans\u002F3.advanced\u002F3.download-engine",{"title":571,"icon":102,"path":572,"stem":573,"children":574,"page":32},"使用场景","\u002Fzh-hans\u002Fusecases","zh-Hans\u002F4.usecases",[575,579,583,587,591,595,599],{"title":576,"path":577,"stem":578,"icon":110},"在线课程视频下载与离线学习","\u002Fzh-hans\u002Fusecases\u002Fonline-courses","zh-Hans\u002F4.usecases\u002F1.online-courses",{"title":580,"path":581,"stem":582,"icon":43},"视频平台流媒体下载与素材收集","\u002Fzh-hans\u002Fusecases\u002Fvideo-platforms","zh-Hans\u002F4.usecases\u002F2.video-platforms",{"title":584,"path":585,"stem":586,"icon":119},"直播回放下载与大文件流媒体保存","\u002Fzh-hans\u002Fusecases\u002Flive-replays","zh-Hans\u002F4.usecases\u002F3.live-replays",{"title":588,"path":589,"stem":590,"icon":124},"播客与网页音频下载","\u002Fzh-hans\u002Fusecases\u002Fpodcasts-audio","zh-Hans\u002F4.usecases\u002F4.podcasts-audio",{"title":592,"path":593,"stem":594,"icon":53},"图库与壁纸批量图片下载","\u002Fzh-hans\u002Fusecases\u002Fimage-galleries","zh-Hans\u002F4.usecases\u002F5.image-galleries",{"title":596,"path":597,"stem":598,"icon":133},"企业内训视频与内网流媒体下载","\u002Fzh-hans\u002Fusecases\u002Fcorporate-training","zh-Hans\u002F4.usecases\u002F6.corporate-training",{"title":600,"path":601,"stem":602,"icon":138},"个人媒体下载与视频音频图片归档","\u002Fzh-hans\u002Fusecases\u002Fpersonal-archiving","zh-Hans\u002F4.usecases\u002F7.personal-archiving",{"title":604,"icon":141,"path":605,"stem":606,"children":607,"page":32},"故障排除","\u002Fzh-hans\u002Ftroubleshooting","zh-Hans\u002F5.troubleshooting",[608,612,616,620,624,628],{"title":609,"path":610,"stem":611,"icon":141},"常见问题排查","\u002Fzh-hans\u002Ftroubleshooting\u002Fcommon-issues","zh-Hans\u002F5.troubleshooting\u002F1.common-issues",{"title":613,"path":614,"stem":615,"icon":153},"已知限制与注意事项","\u002Fzh-hans\u002Ftroubleshooting\u002Fknown-issues","zh-Hans\u002F5.troubleshooting\u002F2.known-issues",{"title":617,"path":618,"stem":619,"icon":158},"常见问题解答","\u002Fzh-hans\u002Ftroubleshooting\u002Ffaq","zh-Hans\u002F5.troubleshooting\u002F3.faq",{"title":621,"path":622,"stem":623,"icon":141},"M3U8 下载失败怎么办？HLS 流媒体排查","\u002Fzh-hans\u002Ftroubleshooting\u002Fm3u8-download-failed","zh-Hans\u002F5.troubleshooting\u002F4.m3u8-download-failed",{"title":625,"path":626,"stem":627,"icon":141},"DASH 视频没有声音怎么办？MPD 故障排查","\u002Fzh-hans\u002Ftroubleshooting\u002Fdash-no-audio","zh-Hans\u002F5.troubleshooting\u002F5.dash-no-audio",{"title":629,"path":630,"stem":631,"icon":141},"视频直链下载失败怎么办？MP4、WebM 排查","\u002Fzh-hans\u002Ftroubleshooting\u002Fdirect-video-download","zh-Hans\u002F5.troubleshooting\u002F6.direct-video-download",{"title":633,"icon":173,"path":634,"stem":635,"children":636,"page":32},"开发者文档","\u002Fzh-hans\u002Fdeveloper","zh-Hans\u002F6.developer",[637,641],{"title":638,"path":639,"stem":640,"icon":181},"贡献指南","\u002Fzh-hans\u002Fdeveloper\u002Fcontributing","zh-Hans\u002F6.developer\u002F1.contributing",{"title":642,"path":643,"stem":644,"icon":186},"项目架构","\u002Fzh-hans\u002Fdeveloper\u002Farchitecture","zh-Hans\u002F6.developer\u002F2.architecture",{"title":646,"path":647,"stem":648,"children":649,"page":32},"Zh Hant","\u002Fzh-hant","zh-Hant",[650,668,705,721,753,782],{"title":651,"path":652,"stem":653,"children":654,"icon":32},"快速入門","\u002Fzh-hant\u002Fgetting-started","zh-Hant\u002F1.getting-started\u002F1.index",[655,657,661,664],{"title":656,"path":652,"stem":653,"icon":16},"簡介",{"title":658,"path":659,"stem":660,"icon":21},"安裝","\u002Fzh-hant\u002Fgetting-started\u002Finstallation","zh-Hant\u002F1.getting-started\u002F2.installation",{"title":204,"path":662,"stem":663,"icon":26},"\u002Fzh-hant\u002Fgetting-started\u002Fusage","zh-Hant\u002F1.getting-started\u002F3.usage",{"title":665,"path":666,"stem":667,"icon":31},"配置參考","\u002Fzh-hant\u002Fgetting-started\u002Fconfiguration","zh-Hant\u002F1.getting-started\u002F4.configuration",{"title":669,"icon":35,"path":670,"stem":671,"children":672,"page":32},"功能特色","\u002Fzh-hant\u002Ffeatures","zh-Hant\u002F2.features",[673,677,681,685,689,693,697,701],{"title":674,"path":675,"stem":676,"icon":43},"影片嗅探","\u002Fzh-hant\u002Ffeatures\u002Fvideo-sniffing","zh-Hant\u002F2.features\u002F1.video-sniffing",{"title":678,"path":679,"stem":680,"icon":48},"音訊擷取","\u002Fzh-hant\u002Ffeatures\u002Faudio-capture","zh-Hant\u002F2.features\u002F2.audio-capture",{"title":682,"path":683,"stem":684,"icon":53},"圖片下載","\u002Fzh-hant\u002Ffeatures\u002Fimage-download","zh-Hant\u002F2.features\u002F3.image-download",{"title":686,"path":687,"stem":688,"icon":58},"隱私與安全","\u002Fzh-hant\u002Ffeatures\u002Fprivacy-security","zh-Hant\u002F2.features\u002F4.privacy-security",{"title":690,"path":691,"stem":692,"icon":63},"格式轉換","\u002Fzh-hant\u002Ffeatures\u002Fformat-conversion","zh-Hant\u002F2.features\u002F5.format-conversion",{"title":694,"path":695,"stem":696,"icon":68},"批次下載","\u002Fzh-hant\u002Ffeatures\u002Fbatch-download","zh-Hant\u002F2.features\u002F6.batch-download",{"title":698,"path":699,"stem":700,"icon":73},"鍵盤快速鍵","\u002Fzh-hant\u002Ffeatures\u002Fkeyboard-shortcuts","zh-Hant\u002F2.features\u002F7.keyboard-shortcuts",{"title":702,"path":703,"stem":704,"icon":78},"搜尋與篩選","\u002Fzh-hant\u002Ffeatures\u002Fsearch-filter","zh-Hant\u002F2.features\u002F8.search-filter",{"title":554,"icon":81,"path":706,"stem":707,"children":708,"page":32},"\u002Fzh-hant\u002Fadvanced","zh-Hant\u002F3.advanced",[709,713,717],{"title":710,"path":711,"stem":712,"icon":89},"線上工具","\u002Fzh-hant\u002Fadvanced\u002Fonline-tools","zh-Hant\u002F3.advanced\u002F1.online-tools",{"title":714,"path":715,"stem":716,"icon":94},"瀏覽器相容性","\u002Fzh-hant\u002Fadvanced\u002Fbrowser-compatibility","zh-Hant\u002F3.advanced\u002F2.browser-compatibility",{"title":718,"path":719,"stem":720,"icon":99},"下載引擎架構","\u002Fzh-hant\u002Fadvanced\u002Fdownload-engine","zh-Hant\u002F3.advanced\u002F3.download-engine",{"title":571,"icon":102,"path":722,"stem":723,"children":724,"page":32},"\u002Fzh-hant\u002Fusecases","zh-Hant\u002F4.usecases",[725,729,733,737,741,745,749],{"title":726,"path":727,"stem":728,"icon":110},"線上課程影片下載與離線學習","\u002Fzh-hant\u002Fusecases\u002Fonline-courses","zh-Hant\u002F4.usecases\u002F1.online-courses",{"title":730,"path":731,"stem":732,"icon":43},"影片平台串流下載與素材收集","\u002Fzh-hant\u002Fusecases\u002Fvideo-platforms","zh-Hant\u002F4.usecases\u002F2.video-platforms",{"title":734,"path":735,"stem":736,"icon":119},"直播回放下載與大型串流影片儲存","\u002Fzh-hant\u002Fusecases\u002Flive-replays","zh-Hant\u002F4.usecases\u002F3.live-replays",{"title":738,"path":739,"stem":740,"icon":124},"Podcast 與網頁音訊下載","\u002Fzh-hant\u002Fusecases\u002Fpodcasts-audio","zh-Hant\u002F4.usecases\u002F4.podcasts-audio",{"title":742,"path":743,"stem":744,"icon":53},"圖庫與桌布圖片批次下載","\u002Fzh-hant\u002Fusecases\u002Fimage-galleries","zh-Hant\u002F4.usecases\u002F5.image-galleries",{"title":746,"path":747,"stem":748,"icon":133},"企業內訓影片與內網串流下載","\u002Fzh-hant\u002Fusecases\u002Fcorporate-training","zh-Hant\u002F4.usecases\u002F6.corporate-training",{"title":750,"path":751,"stem":752,"icon":138},"個人媒體下載與影片音訊圖片歸檔","\u002Fzh-hant\u002Fusecases\u002Fpersonal-archiving","zh-Hant\u002F4.usecases\u002F7.personal-archiving",{"title":754,"icon":141,"path":755,"stem":756,"children":757,"page":32},"疑難排解","\u002Fzh-hant\u002Ftroubleshooting","zh-Hant\u002F5.troubleshooting",[758,762,766,770,774,778],{"title":759,"path":760,"stem":761,"icon":141},"常見問題排查","\u002Fzh-hant\u002Ftroubleshooting\u002Fcommon-issues","zh-Hant\u002F5.troubleshooting\u002F1.common-issues",{"title":763,"path":764,"stem":765,"icon":153},"已知限制與注意事項","\u002Fzh-hant\u002Ftroubleshooting\u002Fknown-issues","zh-Hant\u002F5.troubleshooting\u002F2.known-issues",{"title":767,"path":768,"stem":769,"icon":158},"常見問題解答","\u002Fzh-hant\u002Ftroubleshooting\u002Ffaq","zh-Hant\u002F5.troubleshooting\u002F3.faq",{"title":771,"path":772,"stem":773,"icon":141},"M3U8 下載失敗怎麼辦？HLS 串流排查","\u002Fzh-hant\u002Ftroubleshooting\u002Fm3u8-download-failed","zh-Hant\u002F5.troubleshooting\u002F4.m3u8-download-failed",{"title":775,"path":776,"stem":777,"icon":141},"DASH 影片沒有聲音怎麼辦？MPD 排查","\u002Fzh-hant\u002Ftroubleshooting\u002Fdash-no-audio","zh-Hant\u002F5.troubleshooting\u002F5.dash-no-audio",{"title":779,"path":780,"stem":781,"icon":141},"影片直連下載失敗怎麼辦？MP4、WebM 排查","\u002Fzh-hant\u002Ftroubleshooting\u002Fdirect-video-download","zh-Hant\u002F5.troubleshooting\u002F6.direct-video-download",{"title":633,"icon":173,"path":783,"stem":784,"children":785,"page":32},"\u002Fzh-hant\u002Fdeveloper","zh-Hant\u002F6.developer",[786,790],{"title":787,"path":788,"stem":789,"icon":181},"貢獻指南","\u002Fzh-hant\u002Fdeveloper\u002Fcontributing","zh-Hant\u002F6.developer\u002F1.contributing",{"title":791,"path":792,"stem":793,"icon":186},"專案架構","\u002Fzh-hant\u002Fdeveloper\u002Farchitecture","zh-Hant\u002F6.developer\u002F2.architecture",{"id":795,"title":625,"body":796,"description":1754,"extension":1755,"meta":1756,"navigation":1758,"path":626,"seo":1759,"stem":627,"__hash__":1761},"docs\u002Fzh-Hans\u002F5.troubleshooting\u002F5.dash-no-audio.md",{"type":797,"value":798,"toc":1741},"minimark",[799,803,806,811,823,833,861,876,878,881,884,906,913,916,918,922,928,931,954,965,967,971,976,979,1003,1006,1093,1108,1110,1114,1119,1126,1149,1169,1171,1175,1180,1183,1311,1314,1329,1341,1343,1347,1352,1355,1413,1416,1451,1463,1465,1469,1478,1489,1503,1505,1508,1514,1586,1592,1595,1650,1653,1655,1658,1672,1681,1683,1686,1737],[800,801,802],"p",{},"DASH 下载出来没声音，九成是同一个坑：视频和音频是两条独立的轨道，你只把视频轨道拖回家了。这篇按 MPD 的实际处理流程拆解，告诉你声音是在哪一步丢的、怎么捞回来。",[804,805],"hr",{},[807,808,810],"h2",{"id":809},"先理解dash-为什么把声音弄丢","先理解：DASH 为什么把声音弄丢",[800,812,813,814,818,819,822],{},"MPD 不是\"一条 URL 一个文件\"。它是一棵 XML 树，用 ",[815,816,817],"code",{},"AdaptationSet"," 把视频、音频、字幕分成不同的组，每组里又按码率\u002F画质挂多个 ",[815,820,821],{},"Representation","。看结构就懂了：",[824,825,830],"pre",{"className":826,"code":828,"language":829},[827],"language-text","MPD\n├── AdaptationSet: Video\n│   └── Representation 1080p\n│       ├── init segment（fMP4 头，含编解码器配置）\n│       ├── segment-001.m4s\n│       ├── segment-002.m4s\n│       └── ...\n└── AdaptationSet: Audio\n    └── Representation 128kbps\n        ├── init segment\n        ├── segment-001.m4s\n        ├── segment-002.m4s\n        └── ...\n                    ↓\n            FFmpeg WASM 合并\n                    ↓\n              output.mp4\n","text",[815,831,828],{"__ignoreMap":832},"",[800,834,835,836,840,841,846,847,849,850,849,852,855,856,860],{},"这和 HLS 完全是两种脾气。HLS 通常把音视频塞进同一个 TS 分片，你拉分片就能拼出有声的；DASH 走 fMP4，音视频分开传，下载时必须",[837,838,839],"strong",{},"同时抓两条轨道再合并","。你的工具只认视频轨道的话，出来就是一部哑剧。两者差异对比见 ",[842,843,845],"a",{"href":844},"\u002Fzh-Hans\u002Fdocs\u002Ffeatures\u002Fvideo-sniffing#%E6%94%AF%E6%8C%81%E7%9A%84%E8%A7%86%E9%A2%91%E6%A0%BC%E5%BC%8F","视频嗅探 — 支持的视频格式","，MPD 的 ",[815,848,817],{},"、",[815,851,821],{},[815,853,854],{},"SegmentTemplate"," 完整层级拆解见 ",[842,857,859],{"href":858},"\u002Fzh-Hans\u002Fblog\u002Fdash-mpd-deep-dive-segmenttemplate-contentprotection","DASH 深度篇","。",[862,863,864],"note",{},[800,865,866,867,871,872,860],{},"FlowPick 的 DASH 处理流程：解析 MPD → 识别视频\u002F音频轨道 → 分别下载分片和初始化段 → FFmpeg WASM 合并。详细实现见 ",[842,868,870],{"href":869},"\u002Fzh-Hans\u002Fdocs\u002Ffeatures\u002Fvideo-sniffing#%E9%9F%B3%E8%A7%86%E9%A2%91%E5%88%86%E7%A6%BB%E5%A4%84%E7%90%86","视频嗅探 — 音视频分离处理"," 和 ",[842,873,875],{"href":874},"\u002Fzh-Hans\u002Fdocs\u002Fadvanced\u002Fdownload-engine#dash-%E6%B5%81%E7%9A%84%E7%89%B9%E6%AE%8A%E5%A4%84%E7%90%86","下载引擎架构 — DASH 流的特殊处理",[804,877],{},[807,879,880],{"id":880},"快速处理",[800,882,883],{},"按这个顺序先走一遍，能解决大多数情况：",[885,886,887,891,894,900,903],"ol",{},[888,889,890],"li",{},"打开原视频页面，让视频播起来（很多站点不播放就不发 MPD）。",[888,892,893],{},"用 FlowPick 检测 MPD 清单。",[888,895,896,897,860],{},"在轨道列表里",[837,898,899],{},"同时勾选视频轨道和音频轨道",[888,901,902],{},"挑一条和视频画质匹配的音频（语言、码率对上就行）。",[888,904,905],{},"等合并跑完，再打开听声音。",[800,907,908],{},[909,910],"img",{"alt":911,"src":912},"DASH 轨道选择界面","\u002Fscreenshots\u002Fdash-track-selection.png",[800,914,915],{},"按这个流程还哑，就按下面的症状对号入座。",[804,917],{},[807,919,921],{"id":920},"症状一只选了视频轨道","症状一：只选了视频轨道",[800,923,924,927],{},[837,925,926],{},"表现","：下载飞快，文件几 MB 到几十 MB，播放器打开有画面没声音。",[800,929,930],{},"最常见，没有之一。DASH 下载器默认按码率降序排轨道，很多人只勾了最上面那行 1080p，没注意到再往下的\"Audio\"是另一组。用 ffprobe 一句话确认文件里到底有没有音频流：",[824,932,936],{"className":933,"code":934,"language":935,"meta":832,"style":832},"language-bash shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","ffprobe -hide_banner output.mp4\n","bash",[815,937,938],{"__ignoreMap":832},[939,940,943,947,951],"span",{"class":941,"line":942},"line",1,[939,944,946],{"class":945},"sBMFI","ffprobe",[939,948,950],{"class":949},"sfazB"," -hide_banner",[939,952,953],{"class":949}," output.mp4\n",[800,955,956,957,960,961,964],{},"输出里只有 ",[815,958,959],{},"Stream #0:0: Video","、没有 ",[815,962,963],{},"Stream #0:1: Audio","，就是这个问题。回到 MPD，把音频轨道一起勾上再下。FlowPick 会自动匹配同语言、码率最高的音频轨，不用你手动算。",[804,966],{},[807,968,970],{"id":969},"症状二mpd-里压根没有音频轨道","症状二：MPD 里压根没有音频轨道",[800,972,973,975],{},[837,974,926],{},"：轨道列表里翻遍了都没有音频，或者只有一条\"无声\"的视频流。",[800,977,978],{},"MPD 是动态生成的，同一个视频在不同地区、不同登录状态下拿到的清单可能不一样。常见三种：",[980,981,982,988,997],"ul",{},[888,983,984,987],{},[837,985,986],{},"地区限制","：某个地区只下发视频轨道，或只下发某一种语言。",[888,989,990,993,994,996],{},[837,991,992],{},"登录状态","：没登录时 MPD 里没有音频 ",[815,995,817],{},"，登录后才冒出来。",[888,998,999,1002],{},[837,1000,1001],{},"请求头","：部分站点靠 Referer\u002FCookie 决定要不要给你音频轨。",[800,1004,1005],{},"把 MPD 地址抠下来用 curl 验证（地址换成你自己的）：",[824,1007,1009],{"className":933,"code":1008,"language":935,"meta":832,"style":832},"curl -sL -H \"Referer: https:\u002F\u002Fwww.example.com\u002Fwatch\u002F123\" \\\n     \"https:\u002F\u002Fcdn.example.com\u002Fmaster.mpd\" > master.mpd\n\n# 看清单里到底有没有音频 AdaptationSet\ngrep -c 'AdaptationSet.*type=\"audio\"' master.mpd\n# 输出 0 = 真没有音频轨；>0 = 有，是没勾上（回到症状一）\n",[815,1010,1011,1036,1053,1060,1067,1087],{"__ignoreMap":832},[939,1012,1013,1016,1019,1022,1026,1029,1032],{"class":941,"line":942},[939,1014,1015],{"class":945},"curl",[939,1017,1018],{"class":949}," -sL",[939,1020,1021],{"class":949}," -H",[939,1023,1025],{"class":1024},"sMK4o"," \"",[939,1027,1028],{"class":949},"Referer: https:\u002F\u002Fwww.example.com\u002Fwatch\u002F123",[939,1030,1031],{"class":1024},"\"",[939,1033,1035],{"class":1034},"sTEyZ"," \\\n",[939,1037,1039,1042,1045,1047,1050],{"class":941,"line":1038},2,[939,1040,1041],{"class":1024},"     \"",[939,1043,1044],{"class":949},"https:\u002F\u002Fcdn.example.com\u002Fmaster.mpd",[939,1046,1031],{"class":1024},[939,1048,1049],{"class":1024}," >",[939,1051,1052],{"class":949}," master.mpd\n",[939,1054,1056],{"class":941,"line":1055},3,[939,1057,1059],{"emptyLinePlaceholder":1058},true,"\n",[939,1061,1063],{"class":941,"line":1062},4,[939,1064,1066],{"class":1065},"sHwdD","# 看清单里到底有没有音频 AdaptationSet\n",[939,1068,1070,1073,1076,1079,1082,1085],{"class":941,"line":1069},5,[939,1071,1072],{"class":945},"grep",[939,1074,1075],{"class":949}," -c",[939,1077,1078],{"class":1024}," '",[939,1080,1081],{"class":949},"AdaptationSet.*type=\"audio\"",[939,1083,1084],{"class":1024},"'",[939,1086,1052],{"class":949},[939,1088,1090],{"class":941,"line":1089},6,[939,1091,1092],{"class":1065},"# 输出 0 = 真没有音频轨；>0 = 有，是没勾上（回到症状一）\n",[800,1094,1095,1096,849,1098,849,1100,1102,1103,1107],{},"输出 0 的话，回到原视频页面、保持登录状态，用扩展重新检测。",[815,1097,817],{},[815,1099,821],{},[815,1101,854],{}," 这些节点具体长什么样，",[842,1104,1106],{"href":1105},"\u002Fzh-Hans\u002Fblog\u002Fwhat-is-dash-mpd-streaming","MPD 入门"," 讲得比教科书清楚。",[804,1109],{},[807,1111,1113],{"id":1112},"症状三cors-403-404","症状三：CORS \u002F 403 \u002F 404",[800,1115,1116,1118],{},[837,1117,926],{},"：视频轨下得动，音频分片一拉就 403\u002F404，或者在线工具直接报 CORS。",[800,1120,1121,1122,1125],{},"在线工具跑在 ",[815,1123,1124],{},"flowpick.com"," 域名下，带不上目标站的 Cookie 和原页面 Referer，源站一校验就拦——这是防盗链，不是没声音本身。处理方式：",[980,1127,1128,1139,1142],{},[888,1129,1130,1131,1134,1135,1138],{},"有防盗链的站点，",[837,1132,1133],{},"改用扩展","，在",[837,1136,1137],{},"原视频页面","里操作，Referer\u002FCookie 自动带上。",[888,1140,1141],{},"v1.1.1+ 的扩展自带防盗链代理，预览和下载会自动补 Referer 和 Cookie，还会在保存前检查响应，防止把 HTML 错误页存成媒体。",[888,1143,1144,1145,1148],{},"音频分片 URL 带 ",[815,1146,1147],{},"?token=xxx&expires=yyy"," 的，几分钟就过期，趁热下，别中途去吃饭。",[862,1150,1151],{},[800,1152,1153,1154,1158,1159,1163,1164,1168],{},"防盗链代理是 v1.1.1 新增的，升级后 Bilibili、微博这类站点的成功率会明显提升。升级方法见 ",[842,1155,1157],{"href":1156},"\u002Fzh-Hans\u002Fdocs\u002Fgetting-started\u002Finstallation#%E6%89%A9%E5%B1%95%E6%9B%B4%E6%96%B0","安装指南 — 扩展更新","，特性详情见 ",[842,1160,1162],{"href":1161},"\u002Fzh-Hans\u002Fblog\u002Fflowpick-v1-1-1-protected-resource-preview-download","v1.1.1 更新日志","。Referer 问题的完整排查（含 curl 复现）见 ",[842,1165,1167],{"href":1166},"\u002Fzh-Hans\u002Fdocs\u002Ftroubleshooting\u002Fm3u8-download-failed#403-%E4%B8%8E%E9%98%B2%E7%9B%97%E9%93%BE","M3U8 排查 — 403 与防盗链","，方法对 DASH 一样适用。",[804,1170],{},[807,1172,1174],{"id":1173},"症状四音频分片下载不全","症状四：音频分片下载不全",[800,1176,1177,1179],{},[837,1178,926],{},"：轨道都勾了，合并后还是没声音或声音断断续续，控制台里能翻到几个音频分片的失败记录。",[800,1181,1182],{},"音视频是分开下的，视频全下完了，音频可能还剩一两片没到位，合并时只能带残的进去。先确认到底是不是分片丢了：",[824,1184,1186],{"className":933,"code":1185,"language":935,"meta":832,"style":832},"# 逐个探音频分片的 HTTP 状态（把 URL 换成你的）\nfor i in $(seq 1 200); do\n  url=\"https:\u002F\u002Fcdn.example.com\u002Faudio\u002Fseg-$i.m4s\"\n  status=$(curl -s -o \u002Fdev\u002Fnull -w \"%{http_code}\" \"$url\")\n  echo \"seg-$i.m4s -> $status\"\ndone\n",[815,1187,1188,1193,1224,1246,1285,1306],{"__ignoreMap":832},[939,1189,1190],{"class":941,"line":942},[939,1191,1192],{"class":1065},"# 逐个探音频分片的 HTTP 状态（把 URL 换成你的）\n",[939,1194,1195,1199,1202,1205,1208,1211,1215,1218,1221],{"class":941,"line":1038},[939,1196,1198],{"class":1197},"s7zQu","for",[939,1200,1201],{"class":1034}," i ",[939,1203,1204],{"class":1197},"in",[939,1206,1207],{"class":1024}," $(",[939,1209,1210],{"class":945},"seq",[939,1212,1214],{"class":1213},"sbssI"," 1",[939,1216,1217],{"class":1213}," 200",[939,1219,1220],{"class":1024},");",[939,1222,1223],{"class":1197}," do\n",[939,1225,1226,1229,1232,1234,1237,1240,1243],{"class":941,"line":1055},[939,1227,1228],{"class":1034},"  url",[939,1230,1231],{"class":1024},"=",[939,1233,1031],{"class":1024},[939,1235,1236],{"class":949},"https:\u002F\u002Fcdn.example.com\u002Faudio\u002Fseg-",[939,1238,1239],{"class":1034},"$i",[939,1241,1242],{"class":949},".m4s",[939,1244,1245],{"class":1024},"\"\n",[939,1247,1248,1251,1254,1256,1259,1262,1265,1268,1270,1273,1275,1277,1280,1282],{"class":941,"line":1062},[939,1249,1250],{"class":1034},"  status",[939,1252,1253],{"class":1024},"=$(",[939,1255,1015],{"class":945},[939,1257,1258],{"class":949}," -s",[939,1260,1261],{"class":949}," -o",[939,1263,1264],{"class":949}," \u002Fdev\u002Fnull",[939,1266,1267],{"class":949}," -w",[939,1269,1025],{"class":1024},[939,1271,1272],{"class":949},"%{http_code}",[939,1274,1031],{"class":1024},[939,1276,1025],{"class":1024},[939,1278,1279],{"class":1034},"$url",[939,1281,1031],{"class":1024},[939,1283,1284],{"class":1024},")\n",[939,1286,1287,1291,1293,1296,1298,1301,1304],{"class":941,"line":1069},[939,1288,1290],{"class":1289},"s2Zo4","  echo",[939,1292,1025],{"class":1024},[939,1294,1295],{"class":949},"seg-",[939,1297,1239],{"class":1034},[939,1299,1300],{"class":949},".m4s -> ",[939,1302,1303],{"class":1034},"$status",[939,1305,1245],{"class":1024},[939,1307,1308],{"class":941,"line":1089},[939,1309,1310],{"class":1197},"done\n",[800,1312,1313],{},"出现 403\u002F404\u002F5xx，就是有分片拉不到。对策：",[980,1315,1316,1323,1326],{},[888,1317,1318,1319,1322],{},"网络抖的话把",[837,1320,1321],{},"并发数调低","（2-3），减少丢包重试压力，音频轨本来就没几个分片，慢点无所谓。",[888,1324,1325],{},"个别分片 5xx 的，等一会儿重下，源站可能是在做 CDN 回源。",[888,1327,1328],{},"一直断在同一片，多半是临时 Token 过期，回原页面重新检测拿新 MPD。",[800,1330,1331,1332,1336,1337,860],{},"并发数与性能的关系见 ",[842,1333,1335],{"href":1334},"\u002Fzh-Hans\u002Fdocs\u002Fadvanced\u002Fdownload-engine#%E5%B9%B6%E5%8F%91%E6%95%B0%E4%B8%8E%E6%80%A7%E8%83%BD%E7%9A%84%E5%85%B3%E7%B3%BB","下载引擎架构 — 并发数与性能的关系","，重试和退避逻辑见 ",[842,1338,1340],{"href":1339},"\u002Fzh-Hans\u002Fdocs\u002Fadvanced\u002Fdownload-engine#%E9%87%8D%E8%AF%95%E6%9C%BA%E5%88%B6","下载引擎架构 — 重试机制",[804,1342],{},[807,1344,1346],{"id":1345},"症状五文件大小正常但没声音","症状五：文件大小正常但没声音",[800,1348,1349,1351],{},[837,1350,926],{},"：文件不小，ffprobe 里音频流也在，但播放就是没声音，或音画对不上。",[800,1353,1354],{},"这种一般不是下载问题，是合并或编码环节的事：",[1356,1357,1358,1373],"table",{},[1359,1360,1361],"thead",{},[1362,1363,1364,1367,1370],"tr",{},[1365,1366,926],"th",{},[1365,1368,1369],{},"原因",[1365,1371,1372],{},"处理",[1374,1375,1376,1388,1402],"tbody",{},[1362,1377,1378,1382,1385],{},[1379,1380,1381],"td",{},"有音频流但播放无声",[1379,1383,1384],{},"复用器没把音频配对好（H.265 视频 + 异常音频标识）",[1379,1386,1387],{},"换输出格式，或用 ffmpeg 命令行重装一遍",[1362,1389,1390,1393,1399],{},[1379,1391,1392],{},"音画不同步",[1379,1394,1395,1398],{},[815,1396,1397],{},"SegmentTimeline"," 时间戳不连续",[1379,1400,1401],{},"用 FFmpeg 重编码修复",[1362,1403,1404,1407,1410],{},[1379,1405,1406],{},"VLC 能播、系统播放器不能播",[1379,1408,1409],{},"播放器缺解码器（VP9\u002FAV1\u002FOpus）",[1379,1411,1412],{},"换 VLC \u002F PotPlayer，不是文件问题",[800,1414,1415],{},"用 ffmpeg 把音频单独抽出来，验证它本身是不是好的：",[824,1417,1419],{"className":933,"code":1418,"language":935,"meta":832,"style":832},"ffmpeg -i output.mp4 -map 0:a -c copy audio.m4a\n# 抽出来的 audio.m4a 能正常播放 → 音频没坏，问题在合并环节\n",[815,1420,1421,1446],{"__ignoreMap":832},[939,1422,1423,1426,1429,1432,1435,1438,1440,1443],{"class":941,"line":942},[939,1424,1425],{"class":945},"ffmpeg",[939,1427,1428],{"class":949}," -i",[939,1430,1431],{"class":949}," output.mp4",[939,1433,1434],{"class":949}," -map",[939,1436,1437],{"class":949}," 0:a",[939,1439,1075],{"class":949},[939,1441,1442],{"class":949}," copy",[939,1444,1445],{"class":949}," audio.m4a\n",[939,1447,1448],{"class":941,"line":1038},[939,1449,1450],{"class":1065},"# 抽出来的 audio.m4a 能正常播放 → 音频没坏，问题在合并环节\n",[800,1452,1453,1454,1458,1459,860],{},"FFmpeg WASM 的转封装原理见 ",[842,1455,1457],{"href":1456},"\u002Fzh-Hans\u002Fdocs\u002Ffeatures\u002Fformat-conversion#ffmpeg-wasm-%E8%BD%AC%E5%B0%81%E8%A3%85","格式转换 — FFmpeg WASM 转封装","，音视频合并流程见 ",[842,1460,1462],{"href":1461},"\u002Fzh-Hans\u002Fdocs\u002Ffeatures\u002Fformat-conversion#%E9%9F%B3%E8%A7%86%E9%A2%91%E5%88%86%E7%A6%BB%E5%90%88%E5%B9%B6","格式转换 — 音视频分离合并",[804,1464],{},[807,1466,1468],{"id":1467},"症状六drm-保护","症状六：DRM 保护",[800,1470,1471,1473,1474,1477],{},[837,1472,926],{},"：MPD 里有 ",[815,1475,1476],{},"\u003CContentProtection>","，或播放前要加载 Widevine\u002FPlayReady 的 CDM 模块。",[800,1479,1480,1481,1484,1485,860],{},"这种下不了，FlowPick ",[837,1482,1483],{},"明确拒绝处理","——这是特性不是 bug。DRM 是版权方用硬件级加密锁死的，声称能解 DRM 的下载器要么在撒谎要么违法。别浪费时间和磁盘。法律和技术底线见 ",[842,1486,1488],{"href":1487},"\u002Fzh-Hans\u002Fblog\u002Fis-it-legal-to-download-streaming-video","流媒体下载合法性指南",[862,1490,1491],{},[800,1492,1493,1494,1498,1499,860],{},"DRM 检测方式和完整不支持列表见 ",[842,1495,1497],{"href":1496},"\u002Fzh-Hans\u002Fdocs\u002Ftroubleshooting\u002Fknown-issues#drm-%E4%BF%9D%E6%8A%A4%E5%86%85%E5%AE%B9","已知限制 — DRM 保护内容","。DASH 音视频分离的已知边界情况见 ",[842,1500,1502],{"href":1501},"\u002Fzh-Hans\u002Fdocs\u002Ftroubleshooting\u002Fknown-issues#%E5%88%86%E7%A6%BB%E9%9F%B3%E8%A7%86%E9%A2%91%E6%B5%81","已知限制 — 分离音视频流",[804,1504],{},[807,1506,1507],{"id":1507},"诊断工具速查",[800,1509,1510,1513],{},[815,1511,1512],{},"F12"," 打开开发者工具，几个高频检查点：",[1356,1515,1516,1529],{},[1359,1517,1518],{},[1362,1519,1520,1523,1526],{},[1365,1521,1522],{},"检查",[1365,1524,1525],{},"面板",[1365,1527,1528],{},"操作",[1374,1530,1531,1546,1558,1569],{},[1362,1532,1533,1536,1539],{},[1379,1534,1535],{},"MPD 有没有被请求",[1379,1537,1538],{},"Network",[1379,1540,1541,1542,1545],{},"过滤框输入 ",[815,1543,1544],{},"mpd","，刷新页面播放视频",[1362,1547,1548,1551,1553],{},[1379,1549,1550],{},"音频分片状态码",[1379,1552,1538],{},[1379,1554,1541,1555,1557],{},[815,1556,1242],{},"，看 Status 列和 size",[1362,1559,1560,1563,1566],{},[1379,1561,1562],{},"请求带了什么头",[1379,1564,1565],{},"Network → 选中请求 → Headers",[1379,1567,1568],{},"看 Request Headers 的 Referer\u002FCookie 在不在",[1362,1570,1571,1574,1577],{},[1379,1572,1573],{},"合并报错",[1379,1575,1576],{},"Console",[1379,1578,1579,1580,1582,1583],{},"搜 ",[815,1581,1425],{}," 或 ",[815,1584,1585],{},"wasm",[800,1587,1588],{},[909,1589],{"alt":1590,"src":1591},"开发者工具控制台","\u002Fscreenshots\u002Fdev-console.png",[800,1593,1594],{},"环境信息有疑问的，可以在 Console 里跑下面这段，生成环境报告方便反馈：",[824,1596,1600],{"className":1597,"code":1598,"language":1599,"meta":832,"style":832},"language-javascript shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","const report = {\n  ua: navigator.userAgent,\n  fsa: 'showDirectoryPicker' in window,\n  sab: typeof SharedArrayBuffer !== 'undefined',\n  coi: self.crossOriginIsolated,\n  storage: await navigator.storage?.estimate().catch(() => null),\n  ts: new Date().toISOString(),\n}\nconsole.log(JSON.stringify(report, null, 2))\n","javascript",[815,1601,1602,1607,1612,1617,1622,1627,1632,1638,1644],{"__ignoreMap":832},[939,1603,1604],{"class":941,"line":942},[939,1605,1606],{},"const report = {\n",[939,1608,1609],{"class":941,"line":1038},[939,1610,1611],{},"  ua: navigator.userAgent,\n",[939,1613,1614],{"class":941,"line":1055},[939,1615,1616],{},"  fsa: 'showDirectoryPicker' in window,\n",[939,1618,1619],{"class":941,"line":1062},[939,1620,1621],{},"  sab: typeof SharedArrayBuffer !== 'undefined',\n",[939,1623,1624],{"class":941,"line":1069},[939,1625,1626],{},"  coi: self.crossOriginIsolated,\n",[939,1628,1629],{"class":941,"line":1089},[939,1630,1631],{},"  storage: await navigator.storage?.estimate().catch(() => null),\n",[939,1633,1635],{"class":941,"line":1634},7,[939,1636,1637],{},"  ts: new Date().toISOString(),\n",[939,1639,1641],{"class":941,"line":1640},8,[939,1642,1643],{},"}\n",[939,1645,1647],{"class":941,"line":1646},9,[939,1648,1649],{},"console.log(JSON.stringify(report, null, 2))\n",[800,1651,1652],{},"报告只含浏览器环境信息，不含任何浏览记录或个人数据。",[804,1654],{},[807,1656,1657],{"id":1657},"什么时候真的下不了",[980,1659,1660,1663,1666,1669],{},[888,1661,1662],{},"DRM 保护（Widevine \u002F PlayReady \u002F FairPlay）",[888,1664,1665],{},"需要破解登录或付费墙的内容",[888,1667,1668],{},"MSE 自定义分片、不发原生 MPD 的站点",[888,1670,1671],{},"私有无损或单独加密的多音轨流",[800,1673,1674,1675,1678,1679,860],{},"这些是",[837,1676,1677],{},"设计上不支持","，不是 bug。碰到这些，正确的行为是报错而不是静默产出坏文件——这也是 FlowPick 的态度。法律和技术底线详见 ",[842,1680,1488],{"href":1487},[804,1682],{},[807,1684,1685],{"id":1685},"相关文档",[980,1687,1688,1695,1702,1708,1714,1720,1727,1732],{},[888,1689,1690,1694],{},[842,1691,1693],{"href":1692},"\u002Fdash-downloader","DASH 下载器"," —— 在线工具，适合无防盗链的公开 DASH 流",[888,1696,1697,1701],{},[842,1698,1700],{"href":1699},"\u002Fzh-Hans\u002Fdocs\u002Ftroubleshooting\u002Fm3u8-download-failed","M3U8 排查"," —— HLS 全家桶排查，CORS\u002F防盗链方法通用",[888,1703,1704,1707],{},[842,1705,522],{"href":1706},"\u002Fzh-Hans\u002Fdocs\u002Ffeatures\u002Fvideo-sniffing"," —— HLS\u002FDASH 检测与音视频分离处理",[888,1709,1710,1713],{},[842,1711,567],{"href":1712},"\u002Fzh-Hans\u002Fdocs\u002Fadvanced\u002Fdownload-engine"," —— DASH 音视频并行下载、重试与三级写入",[888,1715,1716,1719],{},[842,1717,538],{"href":1718},"\u002Fzh-Hans\u002Fdocs\u002Ffeatures\u002Fformat-conversion"," —— FMP4 重组与音视频分离合并",[888,1721,1722,1726],{},[842,1723,1725],{"href":1724},"\u002Fzh-Hans\u002Fdocs\u002Ftroubleshooting\u002Fknown-issues","已知限制"," —— DRM、分离音视频流等硬限制",[888,1728,1729,1731],{},[842,1730,1106],{"href":1105}," —— DASH 是什么、MPD 怎么读",[888,1733,1734,1736],{},[842,1735,859],{"href":858}," —— SegmentTemplate、ContentProtection 等边界情况",[1738,1739,1740],"style",{},"html pre.shiki code .sBMFI, html code.shiki .sBMFI{--shiki-light:#E2931D;--shiki-default:#FFCB6B;--shiki-dark:#FFCB6B}html pre.shiki code .sfazB, html code.shiki .sfazB{--shiki-light:#91B859;--shiki-default:#C3E88D;--shiki-dark:#C3E88D}html .light .shiki span {color: var(--shiki-light);background: var(--shiki-light-bg);font-style: var(--shiki-light-font-style);font-weight: var(--shiki-light-font-weight);text-decoration: var(--shiki-light-text-decoration);}html.light .shiki span {color: var(--shiki-light);background: var(--shiki-light-bg);font-style: var(--shiki-light-font-style);font-weight: var(--shiki-light-font-weight);text-decoration: var(--shiki-light-text-decoration);}html .default .shiki span {color: var(--shiki-default);background: var(--shiki-default-bg);font-style: var(--shiki-default-font-style);font-weight: var(--shiki-default-font-weight);text-decoration: var(--shiki-default-text-decoration);}html .shiki span {color: var(--shiki-default);background: var(--shiki-default-bg);font-style: var(--shiki-default-font-style);font-weight: var(--shiki-default-font-weight);text-decoration: var(--shiki-default-text-decoration);}html .dark .shiki span {color: var(--shiki-dark);background: var(--shiki-dark-bg);font-style: var(--shiki-dark-font-style);font-weight: var(--shiki-dark-font-weight);text-decoration: var(--shiki-dark-text-decoration);}html.dark .shiki span {color: var(--shiki-dark);background: var(--shiki-dark-bg);font-style: var(--shiki-dark-font-style);font-weight: var(--shiki-dark-font-weight);text-decoration: var(--shiki-dark-text-decoration);}html pre.shiki code .sMK4o, html code.shiki .sMK4o{--shiki-light:#39ADB5;--shiki-default:#89DDFF;--shiki-dark:#89DDFF}html pre.shiki code .sTEyZ, html code.shiki .sTEyZ{--shiki-light:#90A4AE;--shiki-default:#EEFFFF;--shiki-dark:#BABED8}html pre.shiki code .sHwdD, html code.shiki .sHwdD{--shiki-light:#90A4AE;--shiki-light-font-style:italic;--shiki-default:#546E7A;--shiki-default-font-style:italic;--shiki-dark:#676E95;--shiki-dark-font-style:italic}html pre.shiki code .s7zQu, html code.shiki .s7zQu{--shiki-light:#39ADB5;--shiki-light-font-style:italic;--shiki-default:#89DDFF;--shiki-default-font-style:italic;--shiki-dark:#89DDFF;--shiki-dark-font-style:italic}html pre.shiki code .sbssI, html code.shiki .sbssI{--shiki-light:#F76D47;--shiki-default:#F78C6C;--shiki-dark:#F78C6C}html pre.shiki code .s2Zo4, html code.shiki .s2Zo4{--shiki-light:#6182B8;--shiki-default:#82AAFF;--shiki-dark:#82AAFF}",{"title":832,"searchDepth":1038,"depth":1038,"links":1742},[1743,1744,1745,1746,1747,1748,1749,1750,1751,1752,1753],{"id":809,"depth":1038,"text":810},{"id":880,"depth":1038,"text":880},{"id":920,"depth":1038,"text":921},{"id":969,"depth":1038,"text":970},{"id":1112,"depth":1038,"text":1113},{"id":1173,"depth":1038,"text":1174},{"id":1345,"depth":1038,"text":1346},{"id":1467,"depth":1038,"text":1468},{"id":1507,"depth":1038,"text":1507},{"id":1657,"depth":1038,"text":1657},{"id":1685,"depth":1038,"text":1685},"解决 MPD 或 MPEG-DASH 视频下载后没有声音的问题，涵盖音视频分轨、CORS、DRM 和不完整清单。","md",{"date":1757,"lastModified":1757},"2026-08-17",{"icon":141},{"title":1760,"description":1754},"DASH 下载后没有声音怎么办？MPD 排查指南 | FlowPick","nwk24PA2uy47r8WgL5vH64oglDivcyz3zDyNqBmZniU",[1763,1765],{"title":621,"path":622,"stem":623,"description":1764,"icon":141,"children":-1},"排查 M3U8 和 HLS 下载失败，包括播放列表检测、CORS、过期链接、Referer、DRM 和分片问题。",{"title":629,"path":630,"stem":631,"description":1766,"icon":141,"children":-1},"排查视频直链返回 403、404、CORS、空文件、格式不支持、无法断点续传等问题，附带 curl 诊断代码。",1787670546683]