Research on extracting acoustic information from high-speed data obtained by optical interferometer

2022 Fiscal Year Final Research Report

• Project/Area Number: 19K14929
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 20010:Mechanics and mechatronics-related
• Research Institution: Tokyo University of Agriculture and Technology (2022); Waseda University (2019-2021)
• Principal Investigator: Yatabe Kohei 東京農工大学, 工学(系)研究科(研究院), 准教授 (20801278)
• Project Period (FY): 2019-04-01 – 2023-03-31
• Keywords: 光学的音響計測

Outline of Final Research Achievements

For extending the range of application of optical sound measurement, several research topics have been investigated. They include image processing for acoustic information retrieval, array processing for optical sound measurement, three-dimensional sound field reconstruction from optical projection, and measurement instrument calibration. The research results indicate that there are some room for measuring sound fields that have not been investigated. In addition, we showed that acoustic information can be extracted by applying signal processing to those data.

Free Research Field

音響工学

Academic Significance and Societal Importance of the Research Achievements

従来の研究では測定されてこなかった音場を光学的に測定できることを示したことにより，音の情報が重要な工学的または工業的な応用に適用可能な範囲を広げることができた．それにより，光学的音響計測を実用に近付けることができた．