Perception of combined indoor noise sources in lightweight buildings

Frescura, A and Lee, PJ ORCID: 0000-0002-0328-9175 (2019) Perception of combined indoor noise sources in lightweight buildings. In: International Congress on Acoustics, 2019-9-9 - 2019-9-13, Aachen.

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Abstract

Contrary to community noise field, the combined effect of multiple noise sources on annoyance have not been investigated in building acoustics. Therefore, the present study aims to quantify the total annoyance and emotional reaction caused by indoor noises from the upstairs and next-door neighbours. Footstep sounds were recorded in a laboratory equipped with a timber joists floor in different configurations. Listening tests were then performed to assess the relationship between psychological variables (annoyance, arousal, and valence), physiological measurements (fEMG, EDA, heart rate and respiration rate) and sound stimuli in several scenarios. In the first part, the perception of individual impact and airborne noise was evaluated considering the sound insulation performances of different wall and floor structures. The participants were also asked to evaluate the total annoyance, arousal and valence in the second part when impact and airborne sound sources were presented at the same time. Annoyance ratings for both single and combined noise sources were mainly affected by the sound pressure level; however, sharpness also contributed to the annoyance ratings. It was also observed that the annoyance ratings of the combined noise sources were influenced by the sound insulation performances of the wall and floor. The findings of this study would be helpful to understand how we perceive the combination of noise sources we are usually exposed in timber houses.

Item Type:	Conference or Workshop Item (Unspecified)
Depositing User:	Symplectic Admin
Date Deposited:	03 Feb 2021 09:41
Last Modified:	18 Jan 2023 23:01
DOI:	10.18154/RWTH-CONV-239098
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3114952