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Sakuma Lab (Environmental Acoustics Lab)
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The lab explores better sound environments for everyday life from both the physical side and the side of how people perceive sound.
AboutAbout the lab
Creating better sound environments for everyday life
Sakuma Lab (Environmental Acoustics Lab) studies the living environments of buildings and cities, with a particular focus on the sound environment.
The lab examines how to predict and evaluate sound environments and how to design and control them, from both the physical side and the psychological and physiological side of human perception.
It addresses issues such as architectural acoustics, noise and vibration, communication, and soundscapes, including their social and cultural aspects.
The lab has a semi-anechoic room and a visual environment laboratory at Hongo Campus, and an anechoic room and an outdoor acoustic test building at Kashiwa Campus.
Key terms
- Soundscape
- A "landscape of sound." An approach that considers the sounds heard in a place together with how people perceive them.
- Semi-anechoic room
- A laboratory in which the walls and ceiling, but not the floor, are covered with sound-absorbing material so that almost no sound is reflected.
- Sound field
- A space in which sound travels and resonates. How sound resonates there changes depending on the shape of the room and its finishing materials.
NewsLab news
An Assistant Professor's paper was published in an international academic journal on architectural engineering in Asia
A joint development with Toda Corporation and Hinode Kogei received the Environmental Design Award from the Institute of Noise Control Engineering of Japan
An admissions information session and lab consultation event for the Department of Architecture were held
A joint information session on graduation thesis topics was held with Kozaki Lab
A doctoral student received the Kiyoshi Awaya Academic Encouragement Award from the Acoustical Society of Japan
ResearchResearch themes
The lab studies the living environments of buildings and urban spaces, especially the sound environment: what it should be like, methods for predicting and evaluating it, and technologies for designing and controlling it. The work is divided into four areas: analysis and prediction of the sound environment, control and design, evaluation and assessment, and comprehensive formation of the living environment.
*Illustrative imageAnalyzing and predicting the sound environment
To predict and evaluate indoor sound fields, the propagation of noise, and the acoustic performance of materials, the lab combines analysis and experiment across several stages: theoretical models, numerical computation, simulation, and scale-model experiments.
*Illustrative imageControlling and designing the sound environment
Using techniques from architectural acoustics, electroacoustics, and signal processing, the lab studies methods for controlling and designing sound fields. It also develops materials and structures for sound insulation, absorption, reflection, and diffusion, and works on methods for measuring acoustic performance.
*Illustrative imageInvestigating how people perceive sound
Through listening experiments and field surveys, the lab explores the relationship between the physical characteristics of sound environments and human physiology and psychology. Questionnaires and field measurements are also used to capture the actual state of soundscapes and the effects of regional development.
*Illustrative imageConsidering the living environment comprehensively
The lab looks at environmental factors such as sound, light, heat, and air together, and investigates residents' awareness and behavior. From the perspectives of comfort, health, publicness, and barrier-free design, it considers what living environments and lifestyles should be.
MembersFaculty
The members of Sakuma Lab consist of faculty, visiting researchers, administrative assistants, and doctoral, master's, and undergraduate students.As of 2026
- ProfessorTetsuya SakumaPublications ↗
- Assistant ProfessorHanui YuPublications ↗
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Anechoic chamber DTU” Arnaud Dessein / CC BY-SA 3.0 (cropped)
- Analyzing and predicting the sound environment: “Diffraction of a large object in short waves” Wi11iams / CC BY-SA 4.0 (cropped)
- Controlling and designing the sound environment: “Centro Cultural Kirchner - large auditorium walls” Blmurch / CC BY-SA 4.0 (cropped)
- Investigating how people perceive sound: “DB meter ( )” Jody McIntyre / CC BY-SA 2.0 (cropped)
- Considering the living environment comprehensively: “Kawauchi ES art classroom” Douglas P Perkins / CC BY 3.0 (cropped)
- Related lab (Sakamoto Lab): “Chambre anéchoïque du Laboratoire national de métrologie et d'essais” JPRoche / CC BY-SA 3.0 (cropped)
- Related lab (Mae Lab): “Private House with Solar Roof panels. - geograph.org.uk - 627270” Colm O hAonghusa / CC BY-SA 2.0 (cropped)
- Related lab (Kozaki Lab): “Interior view of the Wangz hotel lounge with shining parquet curved ceiling and round table Singapore” Basile Morin / CC BY-SA 4.0 (cropped)
- Related lab (Ooka-Kikumoto Lab): “Komaba Research Campus (Evening) color” Guwashi / CC BY 2.0 (cropped)
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