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Review of collected data for the experimental checking of a new reverberation time formula (Abstract/Comunicazione in rivista)

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Review of collected data for the experimental checking of a new reverberation time formula (Abstract/Comunicazione in rivista) (literal)

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Alternative label

Domenico Stanzial (1), E. Carletti (2), G. Brambilla (3), and P. Fausti (4) (1993)
Review of collected data for the experimental checking of a new reverberation time formula
(literal)

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Domenico Stanzial (1), E. Carletti (2), G. Brambilla (3), and P. Fausti (4) (literal)

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PACS 43.55.Br Room acoustics: theory and experiment; reverberation, normal modes, diffusion, transient and steady-state response (literal)

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(1) Natl. Res. Council of Italy, Cemoter Inst., Via Canal Bianco 28, I-44044 Cassana, Ferrara, Italy (2) Cemoter. Inst. Ferrara, Italy (3) Natl. Res. Council of Italy, Inst. of Acoust. ''O. M. Corbino'' (4) Ferrara University (literal)

Titolo

Review of collected data for the experimental checking of a new reverberation time formula (literal)

Abstract

The experimental checking of a new reverberation time equation proposed by D. Stanzial in a recent paper [D. Stanzial, ''A heuristic approach to reverberation time in acoustics, based on energy transfer,'' submitted to J. Acoust. Soc. Am. (1992)] has been carried out in rooms of different size and different acoustic absorption characteristics. Although not rigorously true in a general acoustic field situation, the experimental checking of the new formula has been accomplished ''in a standard way'' using the measurement of the T60 reverberation time directly obtained as the decay time of the squared acoustic pressure. On the right side of the reverberation time formula, T60=?{-0.166[1/ln(1-?)]+0.012[ln(?)/ln(1-?)]-0.012}, the local acoustic absorption coefficient ? has been determined, for each testing room, from active and reactive sound intensity measurements. A review of the collected data as well as a first analysis of the experimental checking are reported here. (literal)

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