Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/16194
Title: Reverberation times and speech transmission indices in classrooms
Authors: Tang, SK 
Yeung, MH
Issue Date: 2006
Publisher: Academic Press
Source: Journal of sound and vibration, 2006, v. 294, no. 3, p. 596-607 How to cite?
Journal: Journal of sound and vibration 
Abstract: Octave band reverberation times, background noise levels and speech transmission indices measurements were carried out in eighteen government subsidized primary and secondary schools in Hong Kong. Various normal classroom operation conditions were considered. Results illustrate that strong correlation exists between the reverberation times and the speech transmission indices regardless of the background noise levels and their NC values in the present study. The arithmetic average of the reverberation times in the 250 Hz to 4 Hz octave bands and the 1 kHz octave band reverberation time are found to be more important in the correlation in general. These findings provide a convenient mean for speech transmission design in classrooms.
URI: http://hdl.handle.net/10397/16194
ISSN: 0022-460X
EISSN: 1095-8568
DOI: 10.1016/j.jsv.2005.11.027
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