The Olympic Games, as a four-year sporting event, will attract the attention of the world every time. The 2024 Paris Olympic Games opened on July 26, 2024 local time, and ended on August 11. There were 32 major events and 329 minor events, with 206 countries and regions participating. As the international media that won the most bidding and broadcasting projects in this Olympic Games, China Central Radio and Television showed a number of hard-core technological strengths, delivering a hearty visual feast to the global audience.
4K/8K ultra-high definition shines globally
At the Paris Olympic Games, the main station's "China Red" 8K OB truck landed in Europe for the first time and undertook the production of 8K international public signals for the Summer Olympic Games. This is currently the most powerful and flexible outfield OB truck system in the world, and it is also another new breakthrough for Chinese media in the Olympic journey. At the same time, at this Olympic Games, the main station realized the opening and closing ceremonies and event programs of the Summer Olympic Games for the first time. The three-dimensional Jingcai sound can achieve an immersive restoration of the real live atmosphere of the Olympic event, allowing the audience in front of the screen to clearly feel the subtle changes of the scene, and the "sound" is in the center of the stadium like the environment.
Digital Video (stock code: 300079) is an important partner in the field of ultra-high-resolution video of the main station, supporting the construction of 8K channels, the opening of 4K channels and the deployment of multiple provinces, "5G Media Application Lab (13) 5G + 4K transmission and 8K experience" and other important projects. Among them, the 8K ultra-high definition codec provided by the company adopts the new generation AVS3 video and audio coding standard independently developed by our country. Through excellent hardware platform capabilities and software algorithm support, it has advantages in business stability and program quality. Relying on the company's own algorithm, the product has continuous upgrade ability. The company is also one of the implementers of the key special project "Winter Olympic Games of Science and Technology" led by the Ministry of Science and Technology. In terms of projects and application scenarios, it has supported the construction of the high-speed rail 5G ultra-high definition studio of the main station, the live broadcast of hundreds of large-scale events and events such as the Olympic Winter Games and the World Cup. At the same time, digital video is also one of the core formulators of the "Audio Vivid Technical White Paper", participating in the preparation and implementation of the standard, and has integrated the audio library in its own 8K professional encoder. 3D Jingcaisheng is led by the State Key Laboratory of ultra-high definition video and audio production and presentation of the main station, and released by the World Ultra-resolution video Industry Alliance (UWA Alliance). This is not only China's self-developed 3D sound technology, but also the world's first audio codec standard based on AI technology. It has been widely used in large-scale events and events such as the Qatar World Cup, the Spring Festival Gala of the Year of the Rabbit, and the Hangzhou Asian Games.
"Hundred Cities and Thousand Screens" Sharing Passion Moments
The 8K ultra-high definition communication platform network of the main station "Hundred Cities and Thousand Screens" has now broken through the scale of "1,000 large screens in 100 cities" and achieved full coverage in 31 provinces, regions and cities. During the Paris Olympic Games, the main station combined the needs of different regions and audiences to launch the personalized programming of "Hundred Cities and Thousand Screens".
Digital Video (stock code: 300079) deeply supports the "Hundred Cities and Thousand Screens" project, as one of the main participating units to help the formulation and release of "Hundred Cities and Thousand Screens" ultra-high definition video and audio communication system technical standards ", the application of our country's self-developed AVS3 standard for coding and transmission, through the national ultra-high definition large screen simultaneous broadcast of the main station CCTV-8K ultra-high definition channel signal, providing people with more immersive and exciting visual enjoyment for their cultural life, helping the main station to let the audience outdoors can also feel the extreme excitement of the Paris Olympic Games broadcast report, and go to the Olympic Games in four years.
"Yang Video" unlocks a new viewing experience
The new media "Central Video" of the main station has launched the Olympic version, which is committed to providing users with an intelligent and personalized viewing platform that integrates audio-visual, interactive and service through the application of AI technology. Taking the 2024 Paris Olympic Games as an opportunity, the two client side pure blood Hongmeng versions of "Central Video" and "CCTV Sports" have been developed and launched, and mobile users can enjoy faster response, clearer image quality and more diverse functions in the Olympic viewing. At the same time, the main station has made efforts to create "Central Video Watching TV", opening a new model of ultra-high definition TV screen integration and communication. During the Olympic Games, Central Video used more than 180 hours of live broadcast per day to present the opening and closing ceremonies, as well as 32 major events, providing a large number of short videos, innovative vertical screen event broadcasts, and using AI tool-based products and data to present Olympic events.
Digital Video (stock code: 300079) 's 5G lightweight and portable mobile broadcast technology uses encoding + transmission as a dual core, supports H.265/H.264 deep compression and JPEG-XS shallow compression coding, and realizes a variety of heterogeneous network aggregation transmissions of 5G-A, 5G public network, Internet and dedicated line through self-developed aggregation transmission protocols. In the vertical screen live broadcast, the portable mobile broadcast system is used to realize the wireless mobile return of shallow compressed signals, and solve the problems of jitter, out-of-order, and packet loss caused by wireless transmission, to achieve accurate stream recovery, and for the first time in the industry, the seamless mixing and real-time simultaneous production of wireless and wired channel positions in the stage is realized, which allows the staff to have more choices in the expression of the lens language, and helps to drive content innovation with technological innovation. The company's multi-view broadcast production, AI image enhancement and other technologies have also been maturely applied in the "central video", and the audience can freely switch between multiple viewing angles, and there will be no card or misalignment or delay. This application scenario gets rid of the tradition that the director determines the user's viewing angle in the past, giving the audience the right to choose the viewing angle independently, so that they can switch between different viewing angles at any time according to their own preferences or habits.
In addition to the above, the total broadcast coverage of the Olympic Games also applied innovative applications such as "Cloud and network integrated architecture supports all-media ultra-high definition production", "Yunhuanrong media editing and production supports Olympic panoramic coverage", and "accompanying AI editing improves program production efficiency", which fully reflects that the total broadcast technology has achieved global leadership. As a leading enterprise in independent innovation technology in the 4K/8K ultra-high definition industry chain, Digital Video will continue to research and apply ultra-high definition related technologies, and empower all walks of life with the company's advanced and rich technology and experience to help the entire ultra-high definition ecosystem continue to develop and grow.
