文章转载自The Audio Voice，责任编辑：Mike Klasco

Loudspeaker engineers have few choices for professional forums. The Audio Engineering Society (AES) is an outstanding international organization although not entirely focused on speakers. ALTI (formerly ALMA) is loudspeaker-centric but does not have a strong base in China. And although you may not have heard about iSEAT, for most Chinese speaker engineers that is their preferred professional organization. The International Symposium on ElectroAcoustic Technologies (ISEAT), founded in 2007, is held every two years and has successfully conducted six sessions. This year's theme is "The Third Wave of Sound," and it is set for November 9-10, 2019, in the Shenzhen Virtual University Park, an affiliate of Nanjing University.

In terms of location this is one world-class facility with a large auditorium and lecture halls. The back story on this is many members of ISEAT are alumni of Nanjing University, which produces most of China's audio engineers. ISEAT's Chairman and founder is Professor Dr. Shen Yong, Vice dean of Shenzhen Research Institute of Nanjing University and Director of Shenzhen Acoustics R&D Center of Nanjing University. Professor Shen Yong was the first Ph.D. in electroacoustics in China.

Detailing a little about this year' "Third Wave of Sound" topic, Prof. Shen Yong explains that in the first wave of sound, the Chinese acousticians were very advanced and were responsible for the 12-tone equal temperament used in the tuning of musical instruments research and first proposed by the Chinese Ming Dynasty acoustician Zhu Zaiyu. "Unfortunately, the Chinese did not understand the results of Zhu Zaijun's research."

"The second wave of sound occurred between 1862 and 1877, when a few landmark events occurred in Europe and America." According to Prof. Shen Yong, these followed the publication of landmark works by Helmholtz (Germany) and Rayleigh (United Kingdom), the telephone patent applied by Bell, and Edison's invention of the phonograph.

"The third wave of sound is going on at the moment," Prof. Shen Yong says. "143 years ago, Europe and the United States successfully grasped the great opportunity brought about by the second wave of sound, and created a new era of technology, and benefited from it. Now, the third wave of sound has arrived, and the countries of the world have once again returned to the starting line. Who will grasp this new and significant historical opportunity?" And he concludes, "ISEAT 2019 is just around the corner. It is a window for Chinese people to understand the world's acoustic frontier technology. It is also a bridge connecting academic and business circles. It will help China win in the third wave of sound."

Professor Shen Yong, the chairman of ISEAT, will discuss "The Third Wave of Sound" at this year's edition.

"Humans have experienced three waves of sound so far. The new technology has already arrived, and whoever can accurately grasp the third wave will open the door to wealth in the new era. I hope that the Chinese acoustic academia and business community can work together to seize this historic and significant opportunity," Prof. Shen Yong states.

At ISEAT, famous experts, industry leaders, and senior engineers from all around the world gather and discuss the development and application of new technologies, new materials and new equipment in electroacoustics and related fields. ISEAT is a high-level international exchange platform for electroacoustics technology. Presentations from the leading audio experts are truly global, many of whom our readers will recognize, including Wolfgang Klippel (Klippel), Steve Temme (Listen, Inc.), Dr. Sean Olive (Harman International), Peter Larson (Loudsoft), Richard Little (Goertek), Ken Forsythe (EAW), Mark Dodd (Celestion) and just about all of the leading Chinese experts of speaker engineering.

The agenda for 2019, as detailed in the ISEAT 2019 website covers all the relevant topics, from mobile and automobile acoustics to audio signal processing and analysis, and new loudspeaker materials and measurement techniques.

I will contribute my two cents in a talk on new loudspeaker materials coming into the supply chain in 2020. Papers range from piezo MEMS to material science to test and measurement and I will provide coverage for The Audio Voice while at the event. Software and hardware technologies related to electroacoustics, including research results, R&D reports, technology trends, and technology management.

Images from ISEAT 2017. ISEAT is different from other academic conferences. 

"Since its start, it has paid great attention to the transformation of academic achievements in practical applications. 

It is a communication bridge between academics and business circles," says Professor Shen Yong.

ISEAT's 2019 line-up for this edition includes, among others: David J. Murphy (AES Fellow and member of the AES Standardization Committee SC-04-03) on "Acoustic Lumped Parameter Modeling Techniques;" Manuel Melon (Professor of Acoustics Laboratory, Le Mans University, France) talking about "Measurement of Linear and Nonlinear Loudspeaker Parameters Using High Speed Cameras and 3D Vision Methods"; Wolfgang Klippel (Klippel) discussing "Optimal Use of Software and Hardware Resources in Active Loudspeaker Design;" Sean E. Olive (Harman), presenting on "Audience Classification Based on Headphones Listening Preferences;" Andrea Rusconi Clerici (Co-founder and Chief Technology Officer of USound) discussing "MEMS Micro Loudspeaker: Technology, Challenges, and Applications;" Alfred J. Svobodnik (Chairman of AES Automotive Acoustics Technical Committee) talking about "Virtual Development of Automotive Audio Systems;" James Abbott (Massachusetts Institute of Technology) discussing "The Search for a Quiet Place - Present and Future Trends in Factory Acoustic Test Environments;" Jason McIntosh (SAATI Acoustic simulation and measurement specialist) presenting on "Acoustic Modeling of Thin Protective Meshes and Membranes;" Gregor Schmidle (NTi Audio), talking about "Challenges and Best Practices for Microphone End-of-Line Testing;" Tomas Olofsson (Dirac Research) on "Rational Matrix Methods for Automotive Sound Zones;" Mark Trainer (Minimum Phase LLC) with a presentation on Nonlinear Loudspeaker Simulation Using SPICE; Jingwei Feng (Alibaba) presenting on "Microphone Array Signal Processing and Its Applications;" and Li Shengbo (Master of Electrical Acoustics, Nanjing University) talking about "The Loss of Fundamental Frequency" Theory and Misunderstanding.

All presentations are in Chinese and English presenters have simultaneous translation to Chinese. If you are unable to attend ISEAT 2019, your next chance will be November 2021 (ISEAT takes place every other year).