The "Technical Requirements for the Production and Broadcasting of 8K Ultra-HD TV Programs by China Central Radio and Television (Interim)" (hereinafter referred to as the "Technical Requirements") were officially released on the 21st. This document will provide technical specifications for the station's work in the production and broadcast of 8K ultra-high-definition TV programs. It is an important preparation for the station to prepare for the 8K broadcast of the Tokyo Olympics and Beijing Winter Olympics. It can also be said to be an important milestone in the implementation of the station's "5G+4K/8K+AI" strategy.
It is understood that in order to continue to promote the construction of the ultra-high-definition technology system of China Central Radio and Television Station, in accordance with the overall technical route of "4K first, taking into account 8K" in the national "Ultra-HD Video and Audio Industry Action Plan (2019-2022)", in 4K ultra-high-definition TV Based on production and broadcasting technology, China Central Radio and Television has taken the lead in carrying out a series of research and testing work around 8K ultra-high-definition television collection, production, transmission, broadcast presentation and content distribution, especially in terms of 8K ultra-high-definition television broadcast, AVS3 codec and large-screen presentation. In order to standardize the current application trials of 8K ultra-high-definition television production and broadcasting, the China Central Radio and Television Station organized relevant departments and personnel to draft the "Technical Requirements for the Production and Broadcasting of 8K Ultra-HD TV Programs by China Central Radio and Television Station (Interim)".
Overview of the key points of the "Technical Requirements"
The "Technical Requirements" consists of ten chapters, covering various aspects such as the 8K program production and broadcasting process, basic video and audio technical parameters, video and audio production technical requirements, master control system technical requirements, broadcast system technical requirements, broadcast signal coding and compression technical requirements, distribution technical requirements, and large-screen display technical requirements.
The "Technical Requirements" provides a detailed schematic diagram of the 8K ultra-high-definition TV program production and broadcast process from three aspects: recording process, live broadcast process, and on-demand process, as shown in the figure below:
8K ultra-high-definition TV program production and broadcast process
The "Technical Requirements" defines the 8K ultra-high-definition TV program production and broadcast process. The basic technical parameters of video and audio programs define the basic technical requirements for 8K ultra-high-definition video and audio production from four aspects, including:
pre-production technical requirements;
8K ultra-high-definition TV studio/OB truck recording technical requirements;
post-production technical requirements;
audio production technical requirements.
In the "Technical Requirements for 8K Ultra-HD TV Master Control System", "Technical Requirements for Signal Scheduling and Processing" and "Technical Requirements for 8K Ultra-HD Signal Interfaces between TV Signal Production and Broadcasting Systems" are respectively clarified.
The "Technical Requirements" also clearly stipulates the technical requirements for 8K ultra-high-definition TV broadcast systems, broadcast signal coding and compression technical requirements, program distribution technical requirements, and large-screen display technical requirements. In terms of 8K ultra-high-definition TV program distribution, clear specifications and instructions have been made for interactive on-demand and IP transmission.
The relevant person in charge of the main station said, "Given that the current 8K ultra-high-definition TV is still in the early stages of industrialization and the research and testing conditions are limited, this technical requirement is not detailed enough. With the development of 8K ultra-high-definition technology and the further clarification of application scenarios, this technical requirement must be revised in a timely manner. Supplement and improve. "
An important milestone in the "5G+4K/8K+AI" strategy of the main station
This "Technical Requirements" document released by the main station is an important milestone in the implementation of the main station's "5G+4K/8K+AI" strategy.
Shen Haixiong, Deputy Minister of the Propaganda Department of the CPC Central Committee, President and Editor-in-Chief of China Central Radio and Television, once said that China Central Radio and Television will fully promote the transformation from traditional radio and television media to an all-media organization that produces and releases world-class original video and audio, from the traditional program production and broadcasting model to deepening the supply-side structural reform of content production, and from the traditional technology layout to the "5G+4K/8K+AI" strategic pattern.
In terms of ultra-high-definition layout, CCTV has been on the fast track since 2018, from the launch of the first ultra-high-definition channel to the drafting of ultra-high-definition and high-definition simulcast practices and related technical specifications, and the drafting of ultra-high-definition development action plans with multiple parties, etc., and has gradually advanced——
On October 1, 2018, CCTV officially launched the CCTV-4K ultra-high-definition TV channel. The 2019 CCTV Spring Festival Gala achieved simultaneous live broadcast of high-definition and 4K ultra-high definition for the first time. It is also reported that the Shenzhen branch of the Spring Festival Gala that year "not only realized full 4K production in broadcasting, virtual production and other aspects, but also innovatively used a 5G transmission system to participate in program production."
In 2019, the Ministry of Industry and Information Technology, the State Administration of Radio, Film and Television, and the China Radio and Television Station jointly released the "Ultra-HD Video Industry Development Action Plan (2019-2022)". It is expected that the overall industry scale will exceed 4 trillion by 2022.
In April 2020, the Technical Bureau of China Central Radio and Television drafted the "Technical Specifications for Simultaneous Broadcast of 4K Ultra-HD and High-Definition TV Programs of China Central Radio and Television (Interim)", which comprehensively sorted out the live broadcast and recording processes of simulcast of 4K Ultra-HD and HD TV programs, and determined the principles for simulcast of 4K Ultra-HD and HD channels. In July of the same year, China Central Radio and Television held the final review meeting of the "China Central Radio and Television 5G Media Application White Paper (2020 Edition)". It is understood that the white paper is "oriented towards three types of media applications: 4K collection and transmission, 4K mobile production, and VR production and distribution based on 5G networks."
Effectively implement and implement the central government’s deployment of cultivating new growth points and forming new momentum
This time, the formulation of technical requirements for 8K program live broadcast by the main station is an important deployment and specific measure to effectively implement and implement the central government's plan to cultivate new growth points and form new momentum. It will play an important supporting role in promoting supply-side structural reform, giving full play to the basic role of information technology in stimulating mid-to-high-end consumption and improving people's quality of life, consolidating the core foundation of the ultra-high-definition video industry, enriching the supply of ultra-high-definition video content, improving network transmission capabilities, and strengthening industry promotion and application.
Anna
Anna