TY - JOUR
T1 - Modeling a representative room to explore standard sound measurement methods for ASTM Impact Sound Rating testing
AU - Girdhar, Sunit
AU - Barnard, Andrew
AU - Blough, Jason
AU - LoVerde, John
AU - Dong, Wayland
N1 - Publisher Copyright:
© 2022 Acoustical Society of America.
PY - 2021/11/29
Y1 - 2021/11/29
N2 - ASTM ISR (Impact Sound Rating) test method suffers from non-reproducibility problems, especially in lower frequency bands in smaller rooms where the sound field is non-diffuse. The problem arises from the fact that Sound Pressure Level is measured in these rooms, which is dependent on the room dimensions if the sound field is non-diffuse due to low modal density. Currently, this non-diffusivity is ignored leading to non-reproducibility issues. In this work, we explore the ASTM standard discrete method, ISO discrete method, and the ISO corner method for sound measurement. We also explore the sound power computation using intensity measurements and the diagonal microphone measurement method. This initial work will be followed by exploring more simulation methods and real world testing on practical structures.
AB - ASTM ISR (Impact Sound Rating) test method suffers from non-reproducibility problems, especially in lower frequency bands in smaller rooms where the sound field is non-diffuse. The problem arises from the fact that Sound Pressure Level is measured in these rooms, which is dependent on the room dimensions if the sound field is non-diffuse due to low modal density. Currently, this non-diffusivity is ignored leading to non-reproducibility issues. In this work, we explore the ASTM standard discrete method, ISO discrete method, and the ISO corner method for sound measurement. We also explore the sound power computation using intensity measurements and the diagonal microphone measurement method. This initial work will be followed by exploring more simulation methods and real world testing on practical structures.
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U2 - 10.1121/2.0001536
DO - 10.1121/2.0001536
M3 - Conference article
AN - SCOPUS:85137114741
SN - 1939-800X
VL - 45
JO - Proceedings of Meetings on Acoustics
JF - Proceedings of Meetings on Acoustics
IS - 1
M1 - 015002
T2 - 181st Meeting of the Acoustical Society of America, ASA 2021
Y2 - 29 November 2021 through 3 December 2021
ER -