Considerations on the Reverberation Times of Concert Halls
1960; Acoustical Society of America; Volume: 32; Issue: 11_Supplement Linguagem: Inglês
10.1121/1.1936240
ISSN1520-9024
Autores Tópico(s)Music and Audio Processing
ResumoMeasurements of the reverberation times in Severance Hall at Cleveland during the past several years have provided sufficient data to give an insight into certain problems related to reverberation times, especially in halls designed primarily for symphony orchestras. In the course of recent extensive changes in the hall [R. S. Shankland and E. A. Flynn, J. Acoust. Soc. Am. 31, 866 (1959)] large areas of heavy lined carpet have been removed and replaced by vinyl tile. The areas changed include aisles, promenade areas, stairs, and areas under upholstered seats and in the boxes. Analysis of the reverberation time data [H. L. Ormestad, R. S. Shankland, and A. H. Benade, J. Acoust. Soc. Am. 32, 371 (1960)] taken over a wide-frequency range makes it possible to show in general terms the effect of these areas on the sound absorption in a hall, specifically in and near areas occupied by the audience. Another major change in Severance Hall was the construction of a heavy and acoustically tight wooden stage shell to replace one of light construction. Studies of the acoustical behavior of the hall both before and after this modification permit an estimate to be made of the effect of such a structure on reverberation times. especially at low frequencies.
Referência(s)