Naslov
Comparison of single-number quantities for impact sound insulation to the subjective rating of different floor configurations

Autori
Kisić, Dominik ; Chmelik, Vojtech ; Benklewski, Jakub ; Müllner, Herbert ; Knittl, David ; Horvat, Marko ; Ryhctarikova, Monika ; Jambrošić, Kristian

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

Izvornik
Proceedings of e-Forum Acusticum 2020 / Parizet, Etienne ; Becot, Francois-Xavier - Lyon : Universite Lyon, 2021, 293-296

Skup
E-Forum Acusticum 2020

Mjesto i datum
Lyon, Francuska, 07.12.2020. - 11.12.2020

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
impact sound insulation, subjective rating, single-number quantity

Sažetak
The traditional descriptors of impact sound insulation such as Ln, w evaluate tapping machine measurements on a floor construction by shifting the reference curve which provides a frequency- dependent weighting of the measurement. Additional single-number quantities have been developed over the years to offer a more accurate representation of the quality of impact sound insulation between dwellings. This article shows the comparison of some of the already proposed reference curves and adaptation terms found in literature to the results of subjective rating of three different floor configurations: concrete masonry structure, cross-laminated timber, and a lightweight timber structure. A subjective evaluation was made by matching the perceived loudness of sounds coming through the floors with identical Ln, w + CI, 50−2500 values. The comparison of single-number quantities to the results of the listening test was not able to produce a match. An approach to finding the optimal reference curve for matching the listening test results is also presented in the paper. The results of the curve-matching algorithm showed that its best fitting solutions were not able to coincide with the listening test results, which indicates that alternative methods to the shifting of the reference curve should be explored. Insights to an alternative approach to finding a satisfying adaptation term is also mentioned.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

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