Shulou(Shulou.com)12/24 Report--

On November 22, 2023 UWA SUMMIT and the General meeting of the World Ultra High definition Video Industry Alliance was held in Shenzhen. He Yijin, vice president of Tencent online video, was invited to attend as a representative of the alliance's executive director unit, and delivered a keynote speech on "Audio & HDR Vivid's business practice in Tencent Video." He introduced Tencent Video as a leader in UHD technology, content and business on the Internet platform, on the basis of accurately understanding that UHD is the main thread of the development of the industry. from the production, coding, terminal, quality control certification and other technical links to promote breakthroughs, create and consolidate the "color audio-visual" UHD brand, and continue to promote the exploration process and development achievements of the development of UHD technology and business industry. At the same time, he also shared the latest progress in the development of Tencent Video's ultra high definition technology.

The World Ultra HD Video Industry Alliance (UWA) is composed of leading companies engaged in the manufacture, transmission, content production, application and service of UHD audio and video products around the world. Tencent is the executive director of the UWA Alliance. The UWA Alliance has successively released the technical standards of Jingcai HDR (HDR Vivid) and 3D Sound (Audio Vivid) to ensure end-to-end effect transmission, make pictures and sounds infinitely close to reality, and provide users with the ultimate immersive audio-visual experience. The two technical standards have been issued by the State Administration of Radio and Television for the radio, television and network audio-visual industry standards, while HDR Vivid has also been issued as the electronics industry standard by the Ministry of Industry and Information Technology.

From video to audio, create the industry's top sound and painting experience

With the upgrading of consumption and the promotion of intelligent manufacturing, users' demand for ultra-high-definition video display technology has been increasing in recent years. Tencent Video has been committed to providing ultra-high definition and smooth video entertainment experience, and through the establishment of PC, mobile and living room products and other multiple forms of channel ecology, to meet the advanced needs of users. Tencent Video launched the ultra-high definition brand of "color audio-visual" in 2020. "color audio-visual" represents the top audio-visual experience in the industry, and its layout includes two parts: "seeing" and "listening", as well as self-developed products and cooperative technology business products such as Dolby and IMAX. He Yijin pointed out that in terms of video, the platform continues to consolidate the playback experience of HD 1080p SDR and below, and through the continuous improvement of core competencies such as end-cloud integration, image algorithms and AI model, as well as the comprehensive landing of HDR Vivid applications, the platform's HD technology system has been successfully upgraded to ultra-HD technology system, which currently fully supports 4K / 8K definition, 120K high frame rate as well as high dynamic and wide color range.

In terms of audio, according to he Yijin, Tencent Video launched the "Zhenyue Sound" product this year, providing users with scene-specific sound services, and has cooperated to promote the business application of 5.1 surround sound in the field of vehicles. At present, it is steadily promoting the technical incubation and mode exploration of Audio Vivid 3D sound. In the era of ultra-high definition, Tencent Video realized the transformation and upgrading from clarity to telepresence along the path from stereo to surround sound to 3D sound. Tencent Video's long-term firm investment in technology, products and services has been favored and rewarded by the majority of users. A number of data show that Tencent Video platform firmly occupies a leading position in the industry in key business indicators such as the number of paying members, activity and viewing time.

Get through the full link of technology and keep creating surprises.

Embracing Audio & HDR Vivid in an all-round way, UHD business needs to make breakthroughs in various technical links from production, coding to playback. In the upstream production link, in the face of the lack of original production capacity, Tencent Video uses the "double production line" to cover content production, which not only covers the production of high-quality HDR Vivid film sources by the way of artificial expert color adjustment, but also realizes the intelligent production of HDR Vivid film sources through technical means. At the same time, in order to deal with the color deviation problem that may occur in intelligent production, the platform also introduces ROI protection technology to make the generated HDR images more consistent with the general aesthetic features. He Yijin said that so far, nearly 1000 artificial expert color works have been accumulated in the "dual production line" strategy, and intelligent link production content is about 3000 minutes a day, which can fully meet the needs of the daily content operation of the platform.

When the supply of the film source is sufficient, it is necessary to encode the distribution scheme efficiently. The high resolution and high frame rate of the ultra-high definition film source put forward higher requirements for the compression performance of the video encoder in order to reduce the increase in operating costs caused by ultra-high definition. With the help of AI analysis ability and self-developed image quality evaluation algorithm, Tencent Video significantly reduced the cost of ultra-high definition bandwidth through the industry-leading encoder scheme. For example, the TencentAVS3 encoder developed by Tencent Multimedia Lab can reach the industry benchmark in compression and save nearly 40% bandwidth compared with the commonly used encoder scheme with the same speed. In the terminal playback link that directly determines the user coverage of UHD technology, Tencent Video adopts a composite technology solution for different devices and platforms to help more users experience the quality of the picture. In order to fully cover Tencent Video's business, Tencent Video proposed and gradually promoted the color audio-visual certification scheme based on UWA certification, which aims to provide a hardware basis for color audio-visual authentication, as well as the concept of content platform and equipment manufacturers in picture quality presentation. Since the third quarter of this year, Huawei, Sony, Changhong, Skyworth, Hisense and other manufacturers have begun to dock color audio-visual certification, together to bring users the ultimate picture quality experience.

As a leading comprehensive video content platform in China, Tencent Video is the first Internet content platform that provides Dolby Vision HDR film sources and supports HDR Vivid film playback, continuously pays close attention to the industry development of UHD technology and business, and keenly captures the importance of iterative technology to the ecological development of the industry. In the future, Tencent Video will adhere to the art and technology strategy, actively embrace the development trends of the industry, and explore the innovative applications of cutting-edge technologies such as artificial intelligence models and generative AI technology in the audio and video field, so as to create more surprises for the industry, the market and users.

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.