On April 11, 2020, Shenzhen sound industry association, together with acoustic building forum and online and offline training institutions, carried out the fifth activity of online public electroacoustic technology lecture series training through "Tencent conference app" online meeting and live training. Professor Sun Guangrong, a doctoral director of Nanjing University, delivered a public welfare course on the theme of "room acoustics". China electronic audio industry association, audio and video technology branch of China acting association, engineers' Union, Shenzhen engineers' Union, Guangzhou electronic audio industry association, acoustic building forum and audio and video industry tycoons gave strong support and help to this public audio technology lecture. More than 130 engineers, elites and celebrities from all over the country attended the live broadcast of this Saturday's electroacoustic technology public lecture course. Mr. Wang Xichu, Deputy Secretary General of Shenzhen sound industry association, presided over this public welfare training activity.
Prof. sun Guangrong graduated from the Department of physics of Nanjing University in 1956 and stayed as a teacher. He used to be vice director of Institute of acoustics, Nanjing University, director of Department of Electronic Science and engineering and director of Department of information and electronics of Jinling University (1990s). Special allowance from the State Council. He once served as the vice chairman of the national electroacoustic Standardization Technical Committee, the member of the National Acoustic Standardization Technical Committee, the member of the academic committee of architectural physics of the Architectural Society, the Deputy Secretary General of the Council of the acoustic society, the vice chairman of the acoustic society of Jiangsu Province, and the standing director of the Environmental Science Society of Jiangsu Province, and served as the drafter of many national acoustic standards. Engaged in the research of architectural acoustics, electroacoustics and environmental acoustics, published more than 50 academic papers; published acoustic design principles of anechoic room and reverberation room (Science Press, Beijing, 1981), noise measurement and control (Jiangsu Science and Technology Press, Nanjing, 1985), environmental acoustics Foundation (Nanjing University Press, Nanjing, 1995). It has won one third prize of national science and technology progress award, and five second prizes of science and technology progress of Ministry of education, Ministry of electronics and Ministry of culture.
In this lecture, Mr. Sun emphasized the importance of environmental acoustics foundation for the design and application of anechoic room, reverberation room and loudspeaker test box. The room frequency response and normal vibration mode, reverberation time, indoor steady-state sound field, sound-absorbing material and structure, anechoic room and reverberation room, loudspeaker test box, etc. are described respectively. In this lecture, Mr. Sun has been speaking for two hours, and patiently answered the questions of each audience. He will analyze the details and key points of each knowledge point to you in detail with years of research work experience. The audience benefited a lot, especially for the guidance of front-line work. At the end of the meeting, when we were reluctant to part with each other, Mr. Sun applied for it. Because of the internet jam, he consolidated and retell some knowledge with more than 30 guests again, which made us gain a lot. After the meeting, Vice Secretary General Wang communicated with Mr. Sun about his learning experience. He expressed his great trust for the development of small and medium-sized enterprises. He hoped that small and medium-sized enterprises would be concerned and cultivated in the development process, and could pay attention to the investment and promotion of design and development technology. Through the concerted efforts of all of you, China's electroacoustic power will become an electroacoustic power as soon as possible under the scientific spirit of inheritance and innovation. "Teaching tirelessly and learning tirelessly" is the best embodiment of the teaching spirit of this conference. I believe it will give the audience a kind of vitality. Through this learning, it will not only improve the energy of knowledge points, but also encourage the spirit of work better.
Lecture Notes 1 of room acoustics
Lecture Notes 2 of room acoustics
Lecture notes 3 of room acoustics
Lecture notes 4 of room acoustics
Under the guidance and concern of China electronic audio industry association and Shenzhen audio industry association, In the past 15 years, the acoustic building forum has provided a platform for engineers in the electroacoustic industry to communicate with each other and learn from each other. It also provides a window for suppliers and suppliers in the electroacoustic industry in China to communicate with each other and plays a positive and important role in improving professional skills and working standards of personnel in the audio industry, especially in the electroacoustic industry. In the future, we will continue to share the industry's ecological chain products and technologies! Please pay attention to the announcement of WeChat official account of "acoustic tower forum" and "Shenzhen audio industry association".
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