LAB LOGA page on LabLog, a review site (not the lab's official page)
Acoustic System Performance Evaluation Lab (Kazuhiko Kawahara)
Machine-translated · View original
A lab exploring methods for evaluating the performance of acoustic systems such as loudspeakers.
AboutAbout the lab
Thinking about loudspeaker performance, starting from how to measure it
Associate Professor Kazuhiko Kawahara studies how to evaluate the performance of acoustic systems, including loudspeakers.
In recent years, loudspeakers based on different principles from conventional ones have been proposed, and the lab is investigating measurement methods to evaluate their performance appropriately.
The lab also works on transmitting applause to enhance the sense of presence in live viewing, and on developing curricula for ear training, which cultivates the ability to discriminate between sounds.
The associate professor is a faculty member in the Acoustic Design Course of the School of Design and of the Graduate School of Design.
Key terms
- Distributed-mode loudspeaker
- A type of loudspeaker whose sound radiation mechanism differs from that of conventional electrodynamic loudspeakers. It tends to diffuse sound strongly.
- Directivity
- A loudspeaker's characteristics in each direction in which it emits sound. Because the sound differs depending on direction, it serves as a clue for performance evaluation.
- Ear training
- Systematic training that improves the ability to discriminate basic properties of sound, such as frequency and sound pressure level
ResearchResearch themes
The lab conducts research on sound, centered on performance evaluation of acoustic systems. Besides how to measure loudspeaker performance, it also studies the sense of presence in live viewing and education in ear training.
*Illustrative imageMethods for evaluating loudspeaker performance
Loudspeakers based on a different principle from conventional ones (e.g., distributed-mode loudspeakers) radiate sound through a different mechanism, so appropriate evaluation is thought to require the development of new measurement methods. The lab examines evaluation methods using measurements of directivity and sound intensity.
*Illustrative imageConveying presence through applause
This research aims to enhance the sense of presence in live viewing by encoding and transmitting sounds such as applause. The lab built a system that reproduces applause through flat-panel loudspeakers, and conducted a subjective evaluation experiment comparing it with conventional cone loudspeakers.
*Illustrative imageEar training and its curriculum
Ear training is systematic training that improves the ability to discriminate basic properties of sound, such as frequency and sound pressure level. The lab works on developing its curriculum, and has also developed a training system that can be used online.
MembersFaculty
- Associate ProfessorKazuhiko Kawahara
VoicesStudent voices
Ratings and reviews reflect the experiences of individual current or former students, not the lab's official views. Whether a lab has reviews, or how many, says nothing about the lab itself.
Students who take part in an interview may receive a thank-you gift worth ¥1,000, regardless of what they say.
Student ratings (0 students)
--
--
--
--
--
--
Student voices answer questions like these
- What's great about this lab?
- What did you learn after joining?
- What's the vibe, and what is the professor like?
- Who is this lab for?
- Where do graduates go?
Your experience can help younger students choose their lab. Your name won't be shown.
Write a lab reviewAnonymous · Your draft is saved if you stopRelatedLabs similar to Acoustic System Performance Evaluation Lab (Kazuhiko Kawahara)
Acoustic System Performance Evaluation LabSchool of Design, Department of DesignResearch on performance evaluation of acoustic systems
Design Systems LabSchool of Design, Department of DesignDesign systems, design management
Design Systems Lab (Ryoichi Tamura)School of Design, Department of DesignDesign systems, design management
Acoustic Engineering LabSchool of Design, Department of DesignAcoustical engineeringThe information on this page is compiled by the LabLog team from the lab's public information and interviews. For corrections or removal requests, please contact LabLog, not the lab.
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: “Sound reinforcement rack with speaker ( by dmaland0 @pixabay 700455)” dmaland0 / CC0 (cropped)
- Methods for evaluating loudspeaker performance: “Outline Globe Source omnidirectional Speaker” Burts / CC BY-SA 3.0 (cropped)
- Conveying presence through applause: “Peace Concert Hall Filled Seats” Peacecenter of English Wikipedia / CC BY-SA 3.0 (cropped)
- Ear training and its curriculum: “Realização de Audiometria” Barbara Tonetinha / CC BY-SA 4.0 (cropped)
- Related lab (Acoustic System Performance Evaluation Lab): “P21653A loudspeaker - front view” Mister rf / CC BY-SA 4.0 (cropped)
- Related lab (Design Systems Lab): “Improvements enhance customer experience ( )” Fort Rucker / CC BY 2.0 (cropped)
- Related lab (Design Systems Lab (Ryoichi Tamura)): “Table-banquette by Annie Tribel 1968 - Design Museum Brussels Belgium” Photographer: Basile Morin Product designer: Annie Tribel / CC BY-SA 4.0 (cropped)
- Related lab (Acoustic Engineering Lab): “Violins, Museum of Making Music” doryfour / CC BY-SA 2.0 (cropped)
About LabLog
LabLog is a lab review app for students only. Student members at each university interview students in labs and publish what they say. Student voices can only be read by students who sign up with a university email address. Operated by bestiee Inc.
Learn more about LabLog ↗Search engines and AI may reference the basic lab info and rating summaries on this page and the description of LabLog. Student voices are for student members only. Automated collection by programs (scraping, or input to or training of AI) is prohibited under Article 8 of the Terms of Service. If you need data for research or analysis, please contact us.