Perceived noises in your residence: which one annoys the most?
* Presenting author
The Brazilian standard NBR 15575 establishes performance criteria for residential buildings, including acoustic performance requirements for airborne sound insulation of internal walls, facades and floors, as well as for impact sound level of floors. The standard also specifies non-mandatory sound pressure levels in the dwelling from service equipment for informative purposes. This study aims to investigate which type of noise source is the most uncomfortable for Brazilian dwellings occupants. In order to reach the proposed objective, a preliminary questionnaire for collecting sound source descriptors was carried out. This step aims to gather free-form descriptive words of the sound sources from subjects that are not familiarized with acoustic terms. After the annotation analysis, a questionnaire was applied using a ranking scale. The selected descriptive words were also correlated to the noise sources mentioned in the standard. It is expected that this work may give input to the ABNT NBR 15575 systematic revision, that kicked off in 2018.