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ERIC Number: EJ951023
Record Type: Journal
Publication Date: 2011-Oct
Pages: 13
Abstractor: As Provided
Reference Count: N/A
ISSN: ISSN-0161-1461
The Use of Sound-Field Amplification Devices in Different Types of Classrooms
Wilson, Wayne J.; Marinac, Julie; Pitty, Kathryn; Burrows, Carolyn
Language, Speech, and Hearing Services in Schools, v42 n4 p395-407 Oct 2011
Purpose: The purpose of this study was to determine if sound-field amplification (SFA) devices affected student performance in 3 different types of classrooms. Method: The classroom performance of 147 children (77 males, 70 females, ages 8;2 [years;months] plus or minus 5 months) was measured at the beginning and end of the second semester of their third year in 1 of 4 primary schools in Brisbane, Australia. Each school contained 2 participating classrooms, 1 with and 1 without an SFA device. Results: The SFA devices contributed to small but significant improvements in student listening (p less than 0.01) and auditory analysis (p less than 0.05) skills, but only in the school where the participating classrooms were in a brick building (vs. a demountable building) with neighboring classrooms separated by solid walls (vs. open spaces). The classrooms in this school showed the lowest background noise measures (47-50 dB 1 hr, A weighted) and the second lowest reverberation times (0.87-0.91 s) overall, although these values still exceeded the maximums recommended by American National Standards Institute S12.60-2002 (2002). Conclusion: These results suggest that any potential benefits of SFA devices are more likely to be realized in classrooms with better acoustics.
American Speech-Language-Hearing Association (ASHA). 10801 Rockville Pike, Rockville, MD 20852. Tel: 800-638-8255; Fax: 301-571-0457; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Research
Education Level: Elementary Education; Primary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Location: Australia