雲上創新，阿里雲視頻雲分享全場景音視頻服務背後的場景探索與技術實踐

{"type":"doc","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"image","attrs":{"src":"https://static001.geekbang.org/infoq/17/17600cf5e2c3c1d07677c571febd8439.png","alt":null,"title":null,"style":[{"key":"width","value":"75%"},{"key":"bordertype","value":"none"}],"href":null,"fromPaste":true,"pastePass":true}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"5 月 28 日 - 29 日，2021 阿里雲峯會在北京國家會議中心隆重召開，從 “全面上雲” 到 “雲上創新”，標誌着阿里雲在 2021 年的全新重磅升級！阿里雲 2021 年將加碼投入三個方面，","attrs":{}},{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"做好服務、雲釘一體、數據智能","attrs":{}},{"type":"text","text":"，並在 “做深基礎、做厚中臺、做強生態” 戰略基礎上，新增 “做好服務” 方向，打造中國最大最好的數字化服務團隊。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"本次峯會，阿里雲視頻雲聯合達摩院、釘釘推出了優化音視頻業務客戶體驗分論壇、低代碼開發分論壇、視覺 AI 開放平臺及行業應用分論壇。針對","attrs":{}},{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"音視頻全場景","attrs":{}},{"type":"text","text":"，阿里雲視頻雲推出的互動課堂、互動直播、音視頻會議、AI 媒體生產等一系列音視頻解決方案和技術最佳實踐，作爲此次阿里雲峯會的重要內容和議題，獲得了各界參會嘉賓和行業的廣泛關注，以低代碼、高性能、強體驗的音視頻服務爲全行業的","attrs":{}},{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"視頻化、線上化、數智化","attrs":{}},{"type":"text","text":"轉型加速，展現了阿里雲視頻雲在多行業多場景的深入探索和全面佈局。","attrs":{}}]},{"type":"heading","attrs":{"align":null,"level":2},"content":[{"type":"text","text":"互動課堂，讓教育更智能","attrs":{}}]},{"type":"image","attrs":{"src":"https://static001.geekbang.org/infoq/03/0314fe8a423f29150160c560a8504405.png","alt":null,"title":null,"style":[{"key":"width","value":"75%"},{"key":"bordertype","value":"none"}],"href":null,"fromPaste":true,"pastePass":true}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"阿里雲視頻雲互動課堂產品負責人 王凱旋","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"教育的未來是基於數字技術的終身學習，未來的學習不再僅限於書本知識，更會擴展到工作技能、社交、認知、興趣等更廣泛的領域。根據麥肯錫的研究報告，預計到 2030 年，基於數字技術的在線教育平臺將覆蓋中國 9 億以上的人口。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"一個理想的","attrs":{}},{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"在線教育平臺核心環節","attrs":{}},{"type":"text","text":"有三個，首先是穩定的產品的平臺，其次是高質量的課程，再者是優質的學習體驗，這三個環節既包含了廠商、老師和學生的不同需求，還對音視頻編解碼、網絡傳輸、AI 智能生產等衆多技術提出了更高的要求，這對於任何以一個在線教育公司來說都不是一件容易實現的課題，它意味着很長的研發週期、高企的研發成本和深厚的技術壁壘，特別是一些傳統的教育機構面臨着更多的困難。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"阿里雲視頻雲最新推出的","attrs":{}},{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"智能互動課堂解決方案","attrs":{}},{"type":"text","text":"，可以幫助各類教育機構一站式地快速搭建教學平臺，它覆蓋了所有主流的教學場景的功能，深入各類授課場景，直擊在線教育實時互動痛點。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"視頻雲智能互動課堂基於淺綠幕和深度學習技術，實現人像和課件背景的最佳融合，高度還原現場聽課效果；通過手勢識別、虛擬老師、體態動作識別等，豐富課程趣味性，讓教育交互更加有趣。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"針對在線課堂效果不透明的問題，互動課堂自動生成課堂報告，提供專注度檢測，提升授課質量和學習效果。此外，場景化的 AI 組件聚焦音樂、美術、美妝穿搭、棋類等，幫助教育機構快速靈活搭建自有品牌的在線互動課堂，滿足更多素質教育和興趣教學場景。","attrs":{}}]},{"type":"heading","attrs":{"align":null,"level":2},"content":[{"type":"text","text":"互動直播，重塑業務場景","attrs":{}}]},{"type":"image","attrs":{"src":"https://static001.geekbang.org/infoq/26/26c76227e5b76261ff65a179dcade4ef.png","alt":null,"title":null,"style":[{"key":"width","value":"75%"},{"key":"bordertype","value":"none"}],"href":null,"fromPaste":true,"pastePass":true}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"阿里雲視頻雲產品解決方案架構師 王艮","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"直播已經成爲行業標配。2020 年前三季度新增近 2.5 萬家與視頻直播相關企業，較去年同比增長 565.32%，“直播 +”模式重構傳統場景、創新商業模式、促進直播向細分領域發展。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"傳統的互動直播業務包括基礎能力構建、實時互動、內容傳播，需要很高的人力開發成本，而阿里雲視頻雲期望給大家提供更快接入、便於互動、高效分發、安全穩定的互動直播服務。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"在阿里雲視頻雲看來，真正","attrs":{}},{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"面向未來的直播服務","attrs":{}},{"type":"text","text":"應該具有高度的互動性，它具備了快速搭建、超低成本、相互嵌合、智能安全等特點。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"在阿里雲視頻雲的服務體系下，各類客戶都可以通過 LowCode 平臺，快速接入業務變現；以豐富的原廠組件和場景化的互動組件，提升 C 端互動體驗；基於 AliRTC+AliRTS+AliIM 提升轉化效率，實現高效分發；基於阿里先進的多模態內容理解 AI 技術和萬億級數據資源保障直播安全。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"阿里雲視頻雲","attrs":{}},{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"互動直播解決方案","attrs":{}},{"type":"text","text":"促進了客戶的業務發展，以某頭部母嬰社交 APP 爲例，通過阿里雲視頻雲超低延時直播 RTS 產品的應用，其直播延遲降低 80% 以上，卡頓率降低 20%，大大提升了實時互動體驗，使 UV 和 GMV 指標得到極大提升。","attrs":{}}]},{"type":"heading","attrs":{"align":null,"level":2},"content":[{"type":"text","text":"音視頻會議，連接企業辦公孤島","attrs":{}}]},{"type":"image","attrs":{"src":"https://static001.geekbang.org/infoq/3e/3ed9c4141135e7b50f62d8e79b7d844d.png","alt":null,"title":null,"style":[{"key":"width","value":"75%"},{"key":"bordertype","value":"none"}],"href":null,"fromPaste":true,"pastePass":true}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"阿里雲視頻雲音視頻會議產品負責人 程熙","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"音視頻會議和雲有什麼關係呢？","attrs":{}},{"type":"text","text":"在新冠疫情沒有爆發之前，我們一直認爲音視頻會議是一個私有化的解決方案，疫情期間，我們發現上雲的大範圍接入、彈性化的部署、高的併發與會議是天然的結合在一起。去年一年內，許多雲會議產品得到廣泛的應用，釘釘就是其中之一。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"釘釘在 2020 年支持了 ","attrs":{}},{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"1.2 億人次","attrs":{}},{"type":"text","text":"進行視頻會議，同時的在線會議數超過了 ","attrs":{}},{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"2000 萬","attrs":{}},{"type":"text","text":"，超過 ","attrs":{}},{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"1000 萬家","attrs":{}},{"type":"text","text":"的組織和企業在釘釘上進行了遠程視頻會議。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"“在服務了這麼多企業和支撐了這麼多業務的同時，我發現了非常難的一點，那就是","attrs":{}},{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"連接非常困難","attrs":{}},{"type":"text","text":"，真的非常困難，特別是對於很多數字化轉型優勢並不明顯的中小型企業”，阿里雲視頻雲音視頻會議產品負責人程熙分享到，“疫情之前釘釘會議的能力是 16 方，疫情期間我們立馬將釘釘的會議能力提升至 302 方，爲疫情後的復工復產做了努力，而這僅是我們去年一直在爲打通連接做的努力之一”。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"過去一年，阿里雲視頻雲着力踐行着連接各企業業務孤島這件事，從語音系統、人員系統、郵件系統，到日程、行政系統，甚至是會議室管理系統，我們希望讓連接變得更加不同，讓協作變得更有效率。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"在實踐中阿里雲視頻雲團隊發現，隨着需求個性化性、人員數量極劇增加和設備型號更加複雜，業界需要","attrs":{}},{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"新的基於 “雲端一體” 架構的一站式會議解決方案","attrs":{}},{"type":"text","text":"。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"此次推出的阿里雲一站式會議解決方案，打通了會前、會中、會後的全會議流程，提升了整體的辦公協同能力，連接辦公業務孤島，通過穩定的高性能、低成本的音視頻連接人、業務及設備，爲客戶提供簡單易用穩定可靠的音視頻協同體驗。","attrs":{}}]},{"type":"heading","attrs":{"align":null,"level":2},"content":[{"type":"text","text":"低代碼，讓業務數字化觸手可及","attrs":{}}]},{"type":"image","attrs":{"src":"https://static001.geekbang.org/infoq/74/74ef7de4ab7fde5c5cd6f1b7bc6f5423.png","alt":null,"title":null,"style":[{"key":"width","value":"75%"},{"key":"bordertype","value":"none"}],"href":null,"fromPaste":true,"pastePass":true}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"阿里雲視頻雲資深技術專家 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億美元。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"阿里雲視頻雲互動課堂解決方案的技術架構正是基於低代碼設計原則而打造的，方便很多沒有代碼搭建基礎的教育客戶迅速搭建在線教育服務。團隊在技術架構的設計上，遵循了以下","attrs":{}},{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"四個原則","attrs":{}},{"type":"text","text":"：","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"配置化：零代碼、低代碼的可配置集成方案，更低門檻。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"場景化封裝：場景化 SDK、Demo 封裝，更直觀，更簡單。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"模塊化設計：媒體能力、場景應用模塊化實現，按場景動態組裝，能力更強。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"易擴展：雲、端 API 可擴展，滿足業務做深、做厚的更多需求。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"此套低代碼解決方案的打造，將會幫助客戶","attrs":{}},{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"速度更快、成本更小、門檻更低、隨時隨地","attrs":{}},{"type":"text","text":"搭建自己的互動課堂來完成教學任務，讓原本不具備的業務運營人員同樣具備技術開發的能力，快速響應迅速變化的業務場景需求和變化，人人都成爲工程師。","attrs":{}}]},{"type":"heading","attrs":{"align":null,"level":2},"content":[{"type":"text","text":"AI 智能生產，釋放數字傳媒內容生產力","attrs":{}}]},{"type":"image","attrs":{"src":"https://static001.geekbang.org/infoq/62/62c66c1501e50674ea900e39a3d66dc1.png","alt":null,"title":null,"style":[{"key":"width","value":"75%"},{"key":"bordertype","value":"none"}],"href":null,"fromPaste":true,"pastePass":true}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"阿里雲視頻雲高級技術專家 鄒娟","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"隨技術的進步，科技的發展，內容信息載體也由圖片變爲了視頻。如今，互聯網 70% 的流量來自於視頻，人們的審美習慣也趨向於視頻化，並且提出了更高的要求。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"媒體生產的演進也呈現出從人工到智能、從小衆到大衆、從被動接收到個性互動的特點，視頻製作全鏈路也發生了巨大變化，之前的視頻製作必須由專業機構和專業的非編軟件來製作，而今天我們可以在手機軟件上或者在瀏覽器上進行在線編輯，之前的媒資審覈需要人工來審覈，轉播需要轉播車來轉播，而現在僅僅需要一個小小的軟件開發包就可完成。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"今天在雲計算的加持下，我們把整個媒體生產的模式提升到","attrs":{}},{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"一個新的時代 —— 雲端一體的智能生產架構","attrs":{}},{"type":"text","text":"。雲端一體的智能生產架構包含了內容創意、素材管理、剪輯包裝、渲染與合成四大核心環節，具有云導播、雲剪輯、AI 處理生產等豐富的功能。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"在雲端一體的架構和 AI 能力的加持下，傳媒行業的內容生產將會賦予更多可能性，這種生產化的模式將會極大地重塑行業，讓真正的內容創作者從繁複的重複化勞動中釋放出來，創造出更豐富的內容、形態、模式。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"於此同時，隨着 AI 技術的發展，機器也將更多的具備思考和進化的能力，在阿里雲看來，","attrs":{}},{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"AI 智能生產","attrs":{}},{"type":"text","text":"的未來就是機器可以進化成一個 ","attrs":{}},{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"“藝術家”","attrs":{}},{"type":"text","text":"，與人類藝術家的思想碰撞出更多可能。未來，基於視頻雲技術，阿里雲視頻雲將不斷深入到產業中、行業中、場景中，探究真實的場景痛點和潛在可能，打磨全場景音視頻解決方案，以雲端一體的音視頻數智化能力，實現 “雲上創新、價值創造”。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"blockquote","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"「視頻雲技術」你最值得關注的音視頻技術公衆號，每週推送來自阿里雲一線的實踐技術文章，在這裏與音視頻領域一流工程師交流切磋。公衆號後臺回覆【技術】可加入阿里雲視頻雲技術交流羣，和作者一起探討音視頻技術，獲取更多行業最新信息。","attrs":{}}]}],"attrs":{}}]}