In today's digital and information age, audio and video technology has become an indispensable part of our daily lives. Whether it's in online education, telemedicine, entertainment and leisure, or news reporting, audio and video technology has permeated every corner with its unique charm. This issue of the Audio and Video Technology Weekly will take you on an in-depth exploration of the latest progress and trends in this field. I. The Deep Integration of AI and Audio-Video Technology With the rapid development of artificial intelligence technology, the integration of AI and audio-video technology has become a trend. Through AI algorithms, we can achieve more accurate functions such as speech recognition, image analysis, and content recommendation, thus providing users with a more personalized audio-visual experience. For example, in the field of audio-video editing, AI technology can automatically complete tasks like video clipping and special effects production, greatly improving the production efficiency and quality. Meanwhile, AI technology can also be used for the review and filtering of audio-video content to ensure the legality and security of the content. II. 5G and Cloud Computing Facilitate Audio-Video Transmission The popularization of 5G networks and the development of cloud computing technology have brought unprecedented convenience to audio-video transmission. The high speed and low latency characteristics of 5G networks make it possible to transmit ultra-high-definition and even 8K videos, greatly enhancing the viewing experience of users. And cloud computing technology, with its powerful computing and storage capabilities, provides more efficient and flexible solutions for audio-video processing. With the help of cloud computing platforms, we can achieve rapid processing, storage, and distribution of audio-video content, greatly reducing operating and time costs. III. Application Cases of Audio-Video Technology in Various Fields There are numerous application cases of audio-video technology in various fields. In the education field, high-definition video conferencing and live streaming technologies have made distance education possible, allowing the dissemination of knowledge to no longer be restricted by geographical location. In the medical field, through real-time audio-video communication technology, doctors can conduct remote diagnosis and treatment as well as surgical guidance, greatly improving the accessibility and efficiency of medical services. In addition, in fields such as entertainment and news reporting, audio-video technology is also playing an increasingly important role, providing people with a richer and more diverse audio-visual experience. IV. The Learning Path and Development Direction of Audio-Video Technology For those who want to engage in the development of audio-video technology, it is crucial to master certain basic knowledge and learning paths. Generally speaking, the development of audio-video technology requires knowledge in aspects such as speech signal processing, digital image processing, information theory, encapsulation formats, encoding and decoding, streaming media protocols, network transmission, rendering, and algorithms. At the same time, it is also necessary to pay attention to the latest technological developments and trends, such as the integration of AI and audio-video technology and the application of 5G and cloud computing. In future development, audio-video technology will continue to develop in the directions of higher definition, greater intelligence, and more convenience. On the one hand, with the continuous progress of technology and the in-depth expansion of applications, audio-video technology will play an important role in more fields. On the other hand, we also need to pay attention to the challenges and problems brought by technology, such as the security and privacy protection of audio-video content and the improvement of transmission efficiency and stability.

The scale of China's professional audio and video industry has been continuously expanding, and its market growth rate is higher than the global average level. The application in fields such as office, culture, sports, and entertainment has been gradually deepening, which has enabled the continuous development of China's audio and video industry. Data shows that the global social entertainment market size alone increased from 411.3 billion yuan in 2017 to 1,566.3 billion yuan in 2021, with a compound annual growth rate of 39.7%. The China Commerce Industry Research Institute predicts that it will reach 1,900.9 billion yuan in 2022. Driven by the rapid progress of information technology, the application fields of professional audio and video systems have been continuously expanding. So, how has the audio and video system industry developed rapidly? What are the future market demands and spaces like? **Development History** Audio and video systems were first applied in the fields of conferences, broadcasting, and performance entertainment for the basic presentation of relevant information. However, with the continuous progress of audio and video technologies, software, related algorithms, and control means, their functions have become increasingly powerful. As the functions have become more and more powerful, the application fields have also been continuously broadened, gradually infiltrating into all aspects of human society. Currently, they can be used in any application scenarios with auditory and visual needs. The scenarios with auditory and visual needs may seem rather broad and abstract, and you may also think that these are far from our industry. Then let's take a simple example. The "Time Tunnel" built by Baiyun Airport in 2016 is a very good application scenario that integrates both auditory and visual elements. We were also lucky to experience the magnificent and cool time corridor on the spot. In such a time corridor, 68 projectors, 68 sets of fiber optic extenders, and central control equipment were used to perfectly present the visual and auditory content that needed to be displayed. Let's take another example of auditory and visual aspects. With the continuous development of information, people need to process more and more information. Just like the provincial command center, they not only have to process the information from within themselves but also often deal with the information from cities, counties, and even townships. These pieces of information are directly presented through vision and hearing, and they need to be continuously enlarged, dragged, and even directly distributed to specific persons in charge for follow-up in the command and dispatch center. The transmission and presentation of such advanced and large amounts of information are completed by using audio and video equipment in our industry, such as distributed seat KVM systems, splicing and control processors, and matrix switchers. Before the 1990s, the development of China's professional audio and video industry was relatively slow. The research and development, design, and production and manufacturing of major equipment and systems mainly relied on state-owned enterprises, and the overall level was relatively low. After the 1990s, the national economy developed rapidly, people's living standards and horizons were significantly improved, and the demand for information exchange as well as cultural and entertainment consumption rose rapidly. Stimulated by this, China's professional audio and video market experienced its first rapid development. Given the relatively large technological gap between China and foreign countries at that time, imported products dominated the professional audio and video field. A large number of excellent international brand products entered the Chinese market in the form of agency sales, rapidly improving the application level of relevant domestic industries and gradually leading the growth of the first batch of system integration enterprises. In the early 2000s, after a period of learning, domestic local enterprises began to carry out production, manufacturing, design, and research and development work in this professional field mainly in the forms of "OEM subcontracting" and "imitative innovation". Marked by the successful participation in the relevant construction of the 2008 Beijing Olympic Games, the second rapid development period was formed. A large number of local brands successively entered the international and domestic markets. Some of them gradually completed capital accumulation in the competition and began to focus on their own technology and brand building. In addition, in the early days, most of the domestic professional audio and video fields took product performance and functions as selling points, emphasizing the satisfaction of products themselves for application scenarios. However, with the development and progress of technology, overall solutions that can better match application scenarios and include technical services have gradually been recognized by the market. Solutions that emphasize systematicness, integrity, applicability, and pertinence have gradually gained an advantage in market competition. **Current Characteristics** First, compared with developed countries, it started relatively late but has developed relatively fast on the whole. Second, the entry threshold is relatively low, there are a large number of enterprises, and the competition is fierce. After years of development and accumulation, a relatively obvious trend of industry restructuring has emerged at present. Third, the main business entities are private enterprises. Fourth, relevant production and research and development are mainly concentrated in the Pearl River Delta region, supplemented by the Yangtze River Delta region, and a relatively complete professional audio and video industrial chain has been formed. Overall, accompanied by technological innovation, the improvement of application goals, the expansion of application fields, and the transformation of market forms and competition patterns, the domestic professional audio and video industry still has good growth space. **Future Trends** The global professional audio and video industry is growing steadily. Statistics show that the market size of the global professional audio and video industry was 231.91 billion US dollars in 2021 and is expected to reach 328.97 billion US dollars in 2026. The compound annual growth rate from 2021 to 2026 is 7.24%. Among them, the professional audio and video industry in the APAC (Asia-Pacific) region is developing relatively fast. Its market size was approximately 87 billion US dollars in 2021 and is expected to reach approximately 127 billion US dollars in 2026. The compound annual growth rate from 2021 to 2026 is 7.86%. The rapid development of the economy has led to a significant increase in application scenarios in fields such as conferences, exhibitions, cultural and sports venues, and cultural tourism, providing strong support for the growth of China's professional audio and video system market.

On December 6, 2023, the 19th China Audio and Video Industry Conference (AVF) and the "Science and Technology Innovation Award" award ceremony with the theme of "Breaking through the puzzle of change, jointly creating a blueprint through openness, promoting scientific and technological innovation, and leading a colorful life" was grandly held in Beijing. This conference was hosted by the China Video Industry Association and co-organized by China Color TV Association and Luotu Technology (RUNTO). Representatives of enterprises such as Hisense, Skyworth, Xiaomi, TCL, Changhong, Konka, Haier, Casarte, Huawei, Honor, Philips, Samsung, Sony, HDMI, Dolby, BOE, TCL CSOT, HKC, Texas Instruments, MOKA, the National Engineering Research Center of Digital Television, Yamaha, XGIMI, JMGO, Appotronics, Fengmi, Dangbei, Orange, Aigo, Darren, Thunderbird Technology, Rokid,利亚德 (Leyard), NovaStar, Newline, Andu, Hisense Commercial Display, Vtron, AOC, iFLYTEK, Little Genius, Lenovo, Tencent Music, Rayleigh Acoustics, Shokz, BesTV, and more than 20 experts and artists in the field of digital art from well-known domestic universities attended the conference. At the conference site, business leaders from various industries such as consumer electronics, commercial displays, upstream panels, internet applications, artificial intelligence, and audio and video patents jointly discussed and exchanged ideas. The conference presented the "Science and Technology Innovation Award", the most authoritative national recognition project in the audio and video field approved by the Ministry of Science and Technology and registered and filed by the National Office for Science and Technology Awards, to encourage and recognize outstanding products, technologies, applications, designs, international cooperation, and leading figures of the year. Meanwhile, three important achievements in China's audio and video field in 2023 were also released: 12 series of standards for "Information Security of Smart TVs", the implementation results of the standard for "Guidelines for the Intellectual Property Licensing Mechanism in the Field of Consumer Electronics", and the "Demonstration Base of the Public Service Platform for the Protection and Transformation of Original IPs". Peng Jianfeng, the Executive Secretary-General of the China Video Industry Association, interpreted the "Guidelines": As the first domestic standard in the aspect of intellectual property licensing, the "Guidelines" put forward the Chinese solution for intellectual property governance. The "Guidelines" adhere to the four principles of respect, equality, fairness, reasonableness, and development, clarify the rights and obligations of both licensors and licensees, put forward specific requirements for license negotiation management, and for the first time put forward specific requirements for taking the "minimum marketable unit" attached to patents and technological contributions as the licensed subject matter. Peng Jianfeng pointed out that the purpose of the release of the "Guidelines" is to strengthen intellectual property protection and encourage innovation, and it has received extensive attention from the intellectual property community since its release. The association and the Shanghai National Engineering Center of Digital Television jointly created typical demonstration cases of the "Guidelines", successfully promoting the implementation of the "Guidelines" on the ground. Wang Yao, the Deputy General Manager of the Shanghai National Engineering Center of Digital Television, explained the release of the implementation results. The Shanghai National Engineering Center of Digital Television completed the drafting work of the national standard for digital terrestrial television broadcasting in China (GB20600 - 2006), established a patent pool for standard-essential patents, and signed license agreements with leading enterprises in the domestic and international digital television industry chains, rewriting the history of China's long-term one-way payment for foreign technologies. Meanwhile, in the practice of patent pool licensing, full reference was made to the requirements of the "Guidelines", adhering to the principles of respect, equality, fairness, reasonableness, and development, and considering the actual situation of China's industries. It was determined that the "minimum marketable unit" of the consumer electronics receiving end would be taken as the license object, which was highly recognized by the industry chain and took a solid step for the implementation of the "Guidelines".