Please use this identifier to cite or link to this item: https://hdl.handle.net/10216/567
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dc.creatorAntónio Pedro O. Carvalho
dc.date.accessioned2022-09-10T09:37:32Z-
dc.date.available2022-09-10T09:37:32Z-
dc.date.issued1994
dc.identifier.othersigarra:56298
dc.identifier.urihttps://hdl.handle.net/10216/567-
dc.description.abstractThis study reports on acoustical field measurements made in a major survey of 41 Catholic churches in Portugal built in the last fourteen centuries. Binaural measurements were taken in each church using a dual channel real time frequency analyzer to calculate the coherence values between the signals at both ears in 1/3 octave frequency bands. From the coherence values a new binaural acoustical measure was developed and called BACH (Binaural Acoustical CoHerence). Monaural acoustical measurements were also taken at several source/receiver locations using the impulse response method. BACH was shown to be an orthogonal parameter in statistical tests with nine other monaural acoustical measures (RT, EDT, C80, D, TS, L, BR_RT, BR_L and RASTI) and fifteen architectural parameters. Information was collected regarding the quality of music in each church. ANOVA tests were performed to examine the significance of the differences among the groups of equal subjective quality ratings. The author wanted to test the hypothesis that this new binaural acoustical measure can be useful in estimating the general subjective quality of churches regarding music. A linear correlation coefficient near 0.7 was found between the BACH and the subjective quality ratings that supported the stated hypothesis. This is exploratory research and developments are being tested to improve the model.
dc.language.isoeng
dc.relation.ispartof128th ASA Meeting
dc.rightsrestrictedAccess
dc.rights.urihttps://creativecommons.org/licenses/by-nc/4.0/
dc.subjectAcústica, Engenharia civil
dc.subjectAcoustics, Civil engineering
dc.titleBACH, a new binaural room acoustical measure
dc.typeArtigo em Livro de Atas de Conferência Internacional
dc.contributor.uportoFaculdade de Engenharia
dc.subject.fosCiências da engenharia e tecnologias::Engenharia civil
dc.subject.fosEngineering and technology::Civil engineering
Appears in Collections:FEUP - Artigo em Livro de Atas de Conferência Internacional

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