Naslov
A comparison of two procedures for in-situ measurements of sound absorption coefficient

Autori
Suhanek, Mia ; Jambrošić, Kristian ; Miličeviić, Dražen

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings ELMAR 2009 / Grgić, Mislav ; Božek, Jelena ; Grgić, Sonja - Zagreb : Fakultet elektrotehnike i računarstva Sveučilišta u Zagrebu, 2009, 213-216

ISBN
978-953-7044-10-7

Skup
51st International Symposium ELMAR-2009

Mjesto i datum
Zadar, Hrvatska, 28.09.2009. - 30.09.2009

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
sound absorption coefficient; in-situ measuring; impulse response

Sažetak
The Adrienne method is an often used measurement technique developed for outdoor (in-situ) measurements of sound reflection and airborne sound insulation. It is standardized in the CEN/TS 1793-5 norm[1]. This norm was used as a base for the design of a measuring system for determining the absorption coefficient and sound insulation of noise barriers, ceilings and other wall systems. The goal of this paper is to compare the Adrienne method for in-situ measurement of the absorption coefficient and another method which is very similar to the first mentioned method, except it uses multiplication of the impulse responses with the ratio between estimated time of arrival of the direct and reflected incoming sound impulse, as used in some commercial acoustic measurement applications such as Easera.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA