Acoustics masters Lecture Series

A Novel Way to Determine
In-situ Sound Absorption &
Case Studies

Write your awesome label here.
Webinar overview
Measuring in-situ absorption has the advantage that the actual performance of an absorbing material can be measured at the location where it is installed. You do not have to bring the material to a laboratory and you can measure the absorption efficiency of the material for the actual sound source (thus including installation effects). 
In this webinar, Ysbrand will introduce to the audience a new way of measuring in-situ absorption using a methodology and the associated tools that he has developed.

  English
  13 Dec 2022 (Tuesday), 16:00 (GMT+8)

Webinar starts in:
Supporting Organizations
Meet the Speaker

Ysbrand Wijnant

Ysbrand Wijnant is CTO and founder of the company 4Silence/Soundinsight. 4Silence develops and sells diffraction-based solutions for the reduction of traffic noise, as well as the Sonocat, an acoustic measurement device for acoustic absorption, (emitted) intensity and particle velocity. In addition, Ysbrand supervises master- and PhD-students on various acoustical projects in the EFD-group of the University of Twente (UT).
Ysbrand obtained his PhD in Mechanical Engineering in 1998 on elasto-hydrodynamic lubrication. Thereafter, he worked in industry as a design engineer and project leader at Urenco and Philips. He returned to the UT in 2002, where he developed and taught various engineering courses and started his research on acoustics. He patented diffractors for traffic noise and a method to, in-situ, measure absorption, transmission and power. 
Ysbrand was president of the Dutch Acoustical Society and organized the Euronoise 2015 conference. Ysbrand is married, has 2, grown-up, children and loves to play tennis.

SonoCat

The SonoCat is a handheld spherical MEMS-microphone array. It is designed to measure all imaginable acoustic properties, such as pressure, particle velocity, 3D-intensity, and impedance. In addition however, you can also measure in-situ sound absorption and the incident- and emitted intensity! Measuring in-situ absorption has the advantage that the actual performance of an absorbing material can be measured at the location where it is installed. You do not have to bring the material to a laboratory and you can measure the absorption efficiency of the material for the actual sound source (thus including installation effects).

The SonoCat and Sonocat-software offers a complete integrated solution to the acoustic engineer/consultant. This significantly simplifies the way of doing acoustic measurements. The device directly outputs digital audio signals and no data-acquisition system is required. Measurements and post-processing can be done with one single program.

Interested to be a member of ASA ESEA Regional Chapter?

The chapter was established in November 2018, with the hope of fostering the professional development in acoustics in East and South-East Asia.

Apply for the membership  for FREE. 

Join events on the many aspects of acoustics and related disciplines.


Extend your visions and networks with acoustic academics, researchers, practitioners in ESEA.

Develop opportunity for collaborations.