Relations between rapid speech transmission index (RASTI) and other acoustical and architectural measures in churches

• Tipo: Artigo em Revista Científica Internacional
• Data: 1999

Autores

António P. O. Carvalho (Autor) FEUP

Revista

Título: Applied Acoustics

Vol. 58 Nº 1

Páginas: 33-49

ISSN: 0003-682X

Editora: Elsevier

Indexação

ISI Web of Knowledge - 29 Citações

ISI Web of Science

Scopus - 36 Citações

INSPEC

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia civil

CORDIS: Ciências Físicas > Física > Acústica

Outras Informações

ID Authenticus: P-001-3BV

DOI: 10.1016/S0003-682X(98)00071-1

Abstract (EN): The use of RASTI in churches is studied and the relationships with acoustical and architectural parameters identified using a major survey of Catholic churches in Portugal. It was found that the vast majority of churches tested have RASTI values below 0.45 giving a poor rating in the quality of speech intelligibility. RASTI values within churches, can be reasonably predicted by the use of Center Time TS at 1000 Hz. Loudness (L) does not appear as an important characteristic regarding RASTI values supporting the idea that the intelligibility of speech, under reverberant conditions does not depend on Loudness. A prediction equation using three architectural parameters was calculated to estimate the average RASTI in churches. The effect of the architectural styles and the use of pulpits on RASTI values was also studied.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 17