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Title: An important, but forgotten acoustic issue in classrooms
Authors: Yeung, MH
Tang, SK 
Keywords: Indoor environment
Room acoustics
Speech intelligibility
Issue Date: 2004
Publisher: Hong Kong Institution of Engineers
Source: HKIE transactions, 2004, v. 11, no. 2, p. 13-18 How to cite?
Journal: HKIE transactions 
Abstract: In the present study, measurements of speech intelligibility are carried out in eighteen primary and secondary local schools in Hong Kong having standardised designs by using the impulse decay method. Background noise levels are also measured. This issue of speech intelligibility is important but seems to have been forgotten for years. Results show that the speech intelligibility in most of the classrooms surveyed is not really satisfactory. The laboratories require serious attention. The situation in general becomes slightly better if the windows are opened and the air conditioning systems are switched off. The current acoustical performance in the classrooms suggests that a more careful consideration of future school design is required.
ISSN: 1023-697X
EISSN: 2326-3733
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