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Venue of Internoise 2022Presentation by Advisor Ichiro Yamada (above) and RION’s exhibition booth (below)Enhanced 3D (three dimensional) acoustic scene analysis based on sound arrival direction for automatic airport noise monitoring. Keishi Sakoda, Ichiro Yamada Rion Co., Ltd., Tokyo, JapanTo better understand the spatial and temporal distribution of various sources for environmental noise observed by an auton-omous aircraft noise monitoring system, we are developing a method of acoustic scene analysis based on three-dimensional (3D) sound arrival direction data. We reported on the results of experiments and analysis of a dynamic-mode acoustic scene analysis method achieved by adding a sensor that observes the direction of sound arrival. Our approach offers more versatility than conventional acoustic scene analysis, which is limited to travel paths that meet specific preconditions.The development of sustainable policies to manage noise around airports in VietnamThithanh Vu, Thulân Nguyễn, Masaharu Ohya, Keishi Sakoda, Ichiro YamadaDepartment of Science, Technology and Environment, The Civil Aviation Authority of Vietnam (CAAV), Hanoi, Vietnam, Depart-ment of Architectural Design, Shimane University, Matsue, Ja-pan, Rion Co., Ltd., Tokyo, JapanThis presentation summarizes various activities related to the development of noise policies in Vietnam, including noise eval-uation methods and monitoring techniques, undertaken by the CAAV, with assistance provided by Japanese experts in the years prior to the COVID pandemic. These efforts set the foundations for Vietnam’s aviation noise policy. The presentation introduces various perspectives on and efforts to develop a framework for managing noise around airports in Vietnam and discusses future challenges and prospects.ParticipantsKiyokatsu Iwahashi, Yasunori Mizoguchi, Masaharu Ohya, Ichiro Yamada, Keishi Sakoda, Yoshikazu Hagiwara, Yuichi Yonemoto, Naru Sato, Thomas Kønigsfeldt, Dominick Aalbers, and Rika MinagakiINTER-NOISE 2022 (51st International Congress and Exposition on Noise Control Engineering)August 21–24, 2022Scottish Event Campus (Glasgow, Scotland)https://internoise2022.org/Viewing the changes in community annoyance due to aircraft noise over timesIchiro Yamada Rion Co., Ltd., Tokyo, JapanAlthough technological innovations have made jet aircraft much quieter, this noise still produces a stress response. This presen-tation provides an overview of changes in noise exposure levels from aircraft and the stress experienced by local residents and discusses the introduction of performance-based flight naviga-tion and the impact of the COVID-19 disaster.New guidance manual for the monitoring and evaluation of aircraft noise in Vietnam with an experimental application to the aircraft noise monitoring at Noi Bai International AirportThulan Nguyen, Thi Thanh Vu, Naoaki Shinohara, Koichi Makino, Keishi Sakoda, Ichiro Yamada Department of Architectural Design, Shimane University, Mat-sue, Japan, Department of Science, Technology and Environ-ment, Civil Aviation Authority of Vietnam (CAAV), Hanoi, Vietnam, Organization of Airport Facilitation, Tokyo, Japan, Kobayasi Insti-tute of Physical Research, Japan, Rion Co., Ltd., Tokyo, JapanIn a joint effort to protect airport environments and monitor aircraft noise in Vietnam, the CAAV, JICA, and Rion installed a system consisting of four sound level monitoring meters, and the CAAV developed a new guidance manual for measuring and evaluating aircraft noise. This study presents the development process of the guidance manual and the results of the analysis of the monitoring data.Rion’s presentations19The 51st Internoise was held in August 2022 at the Scot-tish Event Campus (SEC) in Glasgow. The theme of this year’s conference was Noise Management for a More Sus-tainable Future. The venue was the same as the venue for the COP 26 Conference on Climate Change held in 2021. This hybrid event featured both in-person and online sessions. As many as 1,000 participants attended in person at the venue.The program addressed a wide range of topics, ranging from aircraft noise to acoustics for underwater, on-vessel, and offshore conditions. Rion gave four presentations on environmental noise, including aircraft noise, presenting research results and potential solutions to noise-related issues that affect daily life to realize a sustainable society, the main theme of this conference.Products from acoustics manufacturers from around the world were presented adjacent to the conference area. Rion exhibited various products, mainly sound level meters and vibration meters, interacting with visitors to its booth. In addition to the conference and exhibition, events includ-ed an informal party featuring various highlights, includ-ing opportunities to participate in a traditional Ceilidh dance and take part in other aspects of Scottish culture.Internoise 2023 is scheduled to be held in Chiba prefec-ture, Japan. Rion will continue to participate in this event, approaching it as an opportunity to disseminate informa-tion and exchange information with noise control and acoustics experts from around the world.An international conference of researchers, engineers,and consultants specializing in noise control and acoustics from around the worldReport on Internoise 2022