Learning Centre

Noise Level in Indoor Sports Facilities and Factors Affecting the Acoustic Environment

 |  Login

Show simple item record

dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.advisor Lokki, Tapio
dc.contributor.author Del Brenna, Gabriele
dc.date.accessioned 2021-08-29T17:09:55Z
dc.date.available 2021-08-29T17:09:55Z
dc.date.issued 2021-08-24
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/109323
dc.description.abstract Poor acoustic environments coupled with excessive noise levels in indoor sports facilities can lead to annoyance and miscommunication between occupants or can potentially cause negative long-term effects on auditory health. In this thesis, 18 sports halls across 14 different facilities in the Helsinki metro area were measured with respect to three acoustic parameters (reverberation time, Speech Transmission Index (STI), and weighted noise level) in order to determine the quality of their respective acoustic environments, and whether adherence to current regulation was maintained. The work is part of the broader LIIKU project, which investigates the indoor air environment in the selected facilities. Regulations currently use reverberation time almost exclusively as the parameter determining the quality of an acoustic environment. Measurements were split into empty room impulse response measurements and occupied room noise level measurements. Procedures were kept as similar as possible to minimize the amount of variables affecting results. The results showed that less than half of the halls meet current regulation limit values. However, certain halls that do not meet limits exhibit better STI results that some halls that do, indicating potentially acceptable acoustic environments. Noise level measurements were heavily affected by the Covid-19 pandemic due to restrictions on the capacity of indoor facilities. These results are therefore not representative of an everyday situation. Current Finnish regulations have been shown to not be adequate in determining a good acoustic environment, as reverberation time is not the sole factor. STI should be also included in new regulations, multiple sets of limit values should be established to account for the wide variety of sports hall types, and steps should be taken to improve the acoustic qualities of the halls that vastly exceed the limit values. en
dc.format.extent 64
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.title Noise Level in Indoor Sports Facilities and Factors Affecting the Acoustic Environment en
dc.type G2 Pro gradu, diplomityö fi
dc.contributor.school Sähkötekniikan korkeakoulu fi
dc.subject.keyword acoustics en
dc.subject.keyword noise en
dc.subject.keyword reverberation en
dc.subject.keyword indoor environment quality en
dc.subject.keyword acoustic quality en
dc.subject.keyword STI en
dc.identifier.urn URN:NBN:fi:aalto-202108298559
dc.programme.major Acoustics and Audio Technology fi
dc.programme.mcode ELEC3030 fi
dc.type.ontasot Master's thesis en
dc.type.ontasot Diplomityö fi
dc.contributor.supervisor Salonen, Heidi
dc.programme CCIS - Master’s Programme in Computer, Communication and Information Sciences (TS2013) fi
dc.location P1 fi
local.aalto.electroniconly yes
local.aalto.openaccess yes

Files in this item

This item appears in the following Collection(s)

Show simple item record

Search archive

Advanced Search

article-iconSubmit a publication