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Technical Papers and Presentations 2019

Normal-incidence sound-absorption-coefficient measurement using eight microphones

Further increase in measurement frequency by devising microphone arrangement and sound source structure

Akira Sanada (Industrial technology center of Okayama prefecture),Hiroshi Nakagawa
Technical Committee on Architectural Acoustics of Acoust. Soc. Jpn., AA2019-53 (2019.10)

Normal-incidence sound-absorption-coefficient measurement using eight microphones

Effects of source structure and microphone size on the sound field in the tube

Akira Sanada (Industrial technology center of Okayama prefecture),Hiroshi Nakagawa
Proc. Spring Meet. Acoust. Soc. Jpn., (2020.3)