Naslov
The influence of the reproduction system on the results of the listening tests in building acoustics

Autori
Benklewski, Jakub ; Horvat, Marko ; Chmelik , Vojtech ; Zelem, Lukas ; Müllner, Herbert ; Jambrošić, Kristian ; Rychtarikova, Monika ; Glorieux, Christ

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

Izvornik
Euronoise 2018 - Conference Proceedings / Taroudakis, Michael - Heraklion : EAA - HELINA, 2018, 1593-1600

Skup
11th European congress and exposition on Noise Control Engineering (Euronoise 2018)

Mjesto i datum
Hersonissos, Grčka, 27.05.2018. - 31.05.2018

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
sound reproduction system, listening tests, building acoustics

Sažetak
The way humans perceive sound has become an important factor in building acoustics, thus opening a path to subjective evaluation of sound insulation properties of building elements through listening tests. Different approaches have been taken in order to present the sound stimuli to listeners in the most realistic way possible. The reproduction of sound stimuli during listening tests related to building acoustics is usually carried out over headphones, being a very convenient way for the reproduction of acoustic stimuli in general. Nevertheless, in some cases a realistic reproduction over headphones is impossible. On the other hand, loudspeaker systems allow the subject to perceive the sound in a more natural way, related first and foremost to source localization. However, the use of a loudspeaker system implies the interaction of the system with the listening room ; a problem that can be minimized provided that the listening room has been properly treated in the acoustic sense. To examine the influence the sound reproduction system itself has on the results of the listening tests carried out in building acoustics, a listening test was designed and executed with the stimuli reproduced over two different reproduction systems. The same sound stimuli was reproduced once over the headphones, and in the second experiment a stereo listening setup made of two bookshelf-size studio monitor loudspeakers aided by a subwoofer was used. The listening test itself was designed to assess the quality of airborne sound insulation of different building elements through loudness judgements. Namely, the test compared the sound insulation properties of a typical lightweight and massive inner wall, as well as a typical outer wall with and without an ETICS façade (external thermal insulation composite system). Pink noise, music and traffic noise were filtered using the sound reduction index vs. frequency curve, and then used as the stimuli in the experiment.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

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