Acoustic Information Laboratory
Let’s create a comfortable soundspace with an active noise canceller
We are aiming to realize the noise control of multi-channels, which changes parameters depending on situations, in order to create a comfortable soundspace. It is important to make measurements to pinpoint the position of a sound source or sound transmission paths since, in closed space, direct sounds from the sound source are superimposed with reflected sounds, creating complicated signals. It is, however, possible to erase the noise by generating antiphase sounds through an adoptive control with the full use of a computer exceled at calculations to maintain the optimal sound condition.
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College of Engineering
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Information and Communications Engineering
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Faculty Name
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Kenji Muto |
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Academic Society
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Acoustical Society of Japan The Institute of Electronics, Information and Communication Engineers The Institute of Noise Control Engineering of Japan |
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Keyword
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Acoustic,Speakers,Signal processing,Noise,Hearing,
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Study Fields
Communication engineering
Information engineering
Electrical engineering
Electronic engineering
Information engineering
Electrical engineering
Electronic engineering
For Society
Headphones that erase the sound of the engine inside a plane and telephones that allow conversation without putting the receiver close to your ear are all equipped with a small computer that conducts digital signal processing, such as the measurement of sound fields and control of sounds.
Research Themes
- Research to build a low-noise environment using active noise control
- Research on realistic sensations communication systems using acoustic and video effects
- Research to ensure the quality of calls using a bone conducting system in a noisy environment of MRI (magnetic resonance imaging)