Acoustics of Mudejar-Gothic churches
- Autores: Sara Girón Borrero, Teófilo Zamarreño García, Miguel Galindo del Pozo
- Localización: Proceedings of the ISRA 2007 Seville, Vol. 2, 2008 (Poster Session Communications), ISBN 9788469082676
- Idioma: inglés
- Enlaces
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Resumen
This paper summarizes a complete description of the acoustical behaviour of 12 Mudejar-Gothic churches located in the city of Seville in southern Spain. The study covers objective monaural parameters based both on acoustic energy and intelligibility descriptors derived from the modulation transfer function. Impulse response analysis through a maximum-length sequence measurement system has been used to produce octave-band filtered results. The parameters have been spectrally averaged in accordance with the most extended criteria in auditoria in order to consider acoustic quality. Their average values have been studied as a function of source-receiver distance within the churches and they have been interpreted through the ì model. This semi-empirical model supposes that early reflected energy suffers an attenuation, with respect to the classic diffuse theory, that is dependent on source-receiver distance and on a coefficient ì deduced by non-linear regression in order to maximise the correlation between the experimental values of C80 parameter in the churches.
