Annoyance evaluation of impact sounds on timber floors in different listening test setups

초록

In multi-residential buildings, impact noise from neighbors is one major cause of annoyance complaints affecting residents' quality of life. However, human perception of impact sounds is sometimes overlooked in standardized evaluation procedures in national building codes. Particularly for lightweight building constructions with timber floors, established single number metrics show poor correlation with residents' perceived annoyance of impact noise. Within this scope, a listening study was carried out as part of a collaborative research project between Canada, Korea and Germany. Participants rated the perceived annoyance of different impact sounds (ball drops, footsteps, taps) on various timber floor-ceiling assemblies. The effects of audio playback method and of visual stimuli on the perceived annoyance of impact sounds were investigated in three different experimental lab settings: a headphone test, an Ambisonics loudspeaker array and with a virtual living room presented via virtual reality glasses. Results showed an offset in annoyance ratings among experimental conditions, which can be explained by loudness mismatch and cognitive load theory. However, relative annoyance judgements of impact sources and floor-ceiling assemblies remained similar in all three experimental settings. © ICA 2022.All rights reserved

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