Kyushu University Academic Staff Educational and Research Activities Database
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Akira Omoto Last modified date:2017.04.26

Professor / Sound Culture, Art Management
Department of Communication Design Science
Faculty of Design


Graduate School
Undergraduate School


Homepage
http://www.design.kyushu-u.ac.jp/~omotoken/
Home Page of Omoto Lab. .
Academic Degree
Ph. D
Field of Specialization
Applied Acoustical Engineering
Outline Activities
Measurement, evaluation and control of small sized enclosed sound field are the main stream of research activity. The contents are categorized as architectural acoustics, noise, and electro acoustics in the field of acoustics. Examples of the keywords of current publications are: visualization of sound field, analytical solution of enclosed sound field, physical parameter of sound field, sound field evaluation using auditory filter, variable reflection acoustic wall system, active acoustic impedance control.
From 2010 to 2015, a joint researcher of CREST research project entitled "Development of Auditory Field Sharing System". From 2013, new project, Reasonable fusion of the engineering method and the artistic technique for sound field reproduction, is carrying out.

Education: Theoretical Acoustics, Lecture and Seminar, Room Acoustics, Rating and Control of Noise, Nonlinear vibration, for undergraduate program.
Acoustic Environment Control for graduate program. Cultural Hall Management Engineer Training Program for graduate program.
Research
Research Interests
  • Measurement, evaluation, control, and reproduction of sound field
    keyword : Sound Field Measurement, Sound Field Evaluation, Sound Field Control, Sound Field Reproduction
    2010.10Measurement, evaluation and control of the acoustic characteristics of small sized enclosed spaces, such as recording studios..
Academic Activities
Papers
1. Akira Omoto, Shiro Ise, Yusuke Ikeda, Kanako Ueno, Seigo Enomoto, Maori Kobayashi, Sound field reproduction and sharing system based on the boundary surface control principle , Acoustical Science and Technology, 36, 1, 1-11, 2015.01.
2. Akira Omoto, Comment on 'A theoretical framework for quantitatively characterizing sound field diffusion based on scattering and absorption coefficient of walls', Journal of the Acoustical Society of America, 133, 1, 9-12, 2013.01.
3. Yuki Matsumoto, Akira Omoto, Application of an Auditory Filter for the Evaluation of Sounds and Sound Fields, Building Acoustics, 18, 1-2, 368-370, ISRAでのポスター発表原稿が掲載されたもの, 2011.03.
4. Yuki Matsumoto, Akira Omoto, Sound Field Evaluation by Using Auditory Filter: Application of Dynamic Compressive Gammachirp Filter, Acoustical Science and Technology, 31, 5, 368-370, 2010.09.
5. Taeko Akama, Hisaharu Suzuki, Akira Omoto, Distribution of selected monaural acoustical parameters in concert halls, Applied Acoustics, 71, 6, 564-577, Vol. 28, pp.84-89, 2010.06.
6. Yasuhiko Nagatomo, Namiko Hiramatsu, Genta Yamauchi, Akira Omoto, Variable reflection acoustic wall system by active sound radiation, Acoustical Science and Technology, Vol. 28, pp.84-89, 2007.03.
7. Hisaharu Suzuki, Akira Omoto, Kyoji Fujiwara, Treatment of boundary condition by finite difference time domain method, Acoustical Science and Technology, Vol. 28, pp.16-26, 2007.01.
8. Yoshinari Fukushima, Hisaharu Suzuki, Akira Omoto, Visualization of reflected sound in enclosed space by sound intensity measurement, Acoustical Science and Technology, Vol. 27, pp.187-189, 2006.05.
9. Yoko Takenouchi, Hisaharu Suzuki, Akira Omoto, Behavior of the practically implemented filtered reference LMS algorithm in an active noise control system, Acoustical Science and Technology, Vol. 27, pp.20-27, 2006.01.
10. Masataka Nakahara, Akira Omoto, Kyoji Fujiwara, The effect of a mixing console on the monitoring response in a mixing room, Acoustical Science and Technology, Vol. 26, pp.90-101, 2005.03.
11. Akira Omoto, Active Noise Control: Adaptive Signal Processing and Algorithm, IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, Vol. E85-A, No. 3
pp. 548-557, 2002.03.
12. Akira Omoto, Daisuke Morie, Kyoji Fujiwara, Behavior of adaptive algorithms in active noise control systems with moving noise sources, Acoustical Science and Technology, Vol. 23, No. 2
pp. 84-89, 2002.03.
13. Gensei Matsumoto, Kyoji Fujiwara, Akira Omoto, A study on the insertion loss of a noise barrier for a directional sound source, The Journal of the Acoustical Society of Japan (E), Vol. 20, No. 4, pp. 325-328, 1999.07.
14. Akira Omoto, S. J. Elliott, The Effect of Structured Uncertainty in the Acoustic Plant on Multichannel Feedforward Control Sysrtems, IEEE Transaction on Speech and Audio Processing, Vol. 7, No. 2, pp. 204-212, 1999.03.
15. Akira Omoto, Tohru Matsui, Kyoji Fujiwara, The behaviour of an adaptive algorithm with a moving primary source, The Journal of the Acoustical Society of Japan (E), Vol. 19, No. 3, pp. 211-221, 1998.05.
16. 尾本 章,S. J. Elliott, The Effect of Structured Uncertainty in Multichannel Feedforward Control Sysrtems, 1996 IEEE International Conference on Acoustics, Speech & Signal Processing, Volume 2, pp. 965-968, 1996.05.
17. Akira Omoto, Kyoji Fujiwara, A study of an actively controlled noise barrier, Journal of the Acoustical Society of America, Vol. 94, No. 4 pp. 2173-2180, 1993.10.
Presentations
1. Comparison and investigation of sound field isotropy with various measurement systems.
2. The evaluation of sound field isotropy by using hedgehog microphone array.
3. Variation of Loudness considering the Arrival Direction of Sound.
4. Development of an algorithm for extracting sound source information from measured sound intensities and visualizing method of them.
5. 尾本 章, Sound field reproduction system with active reverberation, The 5th joint meeting of the Acoustical Society of America and the Acoustical Society of Japan, 2016.12.01.
6. Evaluation of random incidence sound absorption coefficient with multi-channel sound reproduction system.
7. Development of the VSV4, a support tool for acoustic design work by measuring, analyzing and 3D-visualizing sound intensities.
8. Performance Improvements of Sound Reproduction System with Boundary Surface Control Principle.
9. Performance Improvement of 3D Sound Field Reproduction System.
10. Study on the evaluation of moving sound source localization for 3-D sound field reproduction systems -Comparison of MUSIC and Particle filter.
11. Pilot study of applause sound generator depending on the listening environment.
12. Realization of random incidence to acoustic material in small sized enclosure -Control of directional characteristics of sound propagation by active impedance control-.
13. Measurement, evaluation and control of sound field.
14. Relationship between values of physical evaluations for room acoustics and subjective impressions for three dimensional sound field reproduction system.
15. Basic study for realization of an active reverberation box. - Effect of location and dimension of sound sources on the generated sound field -.
16. An example of a design strategy by using a modal summation method for controlling low frequency properties of an audio playback environment.
17. The extra value of a 3-D sound field reproduction -Comparison between general listeners and acousticians-.
18. Study on the evaluation of moving sound source localization for 3-D sound field reproduction systems.
19. Sound field capturing device with super cardioid microphone arrays: Construction of simple sound field reproducing system with loudspeaker array.
20. Akira Omoto, Takahiro Nishiyama, Yuki Yoshimura, Music Performance with Variable Reflection Acoustic Wall System, Forum Acusticum, 2014.09.11.
21. The effects of diffuser on sound filed.
22. A effect of diffuser’s setting on the enclosed sound field: Foucus on direction distribution of reflected sound.
23. Study on application of active control in the enclosed sound field-Implementation of virtual error sensor by pre-measurement impulse response-.
24. Modeling of porous material for Finite difference time domain method.
25. Selection of receiving positions suitable for evaluating acoustical parameters.
26. Fundamental Study of Active Impedance Control.
27. Study on characteristic of various microphone arrangements for surround recording.
28. Basic study on the sound field control in rooms by using virtual microphone.
29. Effect of variable reflection acoustic wall system on sound field.
30. Study of active reverberation box: Design of adaptive controller.
31. Selection of receiving positions suitable for evaluating acoustical parameters.
32. Acoustic material of variable reflection by sound radiation.
33. Selection of receiving positions suitable for evaluating acoustical parameters.
34. Introduction of Auditory Filter into Evaluation of Characteristics of Small Enclosures.
35. Evaluation method of sound fields in enclosures using sound intensity: Comparison of various methods for image source detection.
36. The performace of Active Reverberation Box by numerical simulation.
Educational