期刊論文
Classrooms for children with developmental disabilities: Sound-field and public address amplification systems compared
- Classrooms for children with developmental disabilities: Sound-field and public address amplification systems compared
- International Journal of Disability, Development and Education, 53(3), 287-299, 2006
- Routledge
- 2006
-
- Hong Kong
-
- 1997.7 onwards
-
- 小學教育
- Background noise poses adverse effects on speech sounds and affects student learning, especially for children with developmental disabilities. Sound-field and public address amplification systems can help to solve this problem by amplifying speech sounds relative to background noise. This study surveyed school classrooms for children with special needs, and compared the performance of a sound-field and a portable public address system in classroom environments. Unoccupied room noise levels and reverberation times were measured in eight classrooms at four Hong Kong schools for children with special needs. Speech levels in each classroom were measured under three conditions: without amplification, with public address system amplification, and with sound-field amplification. Speech-to-noise ratios were calculated for each condition. Noise and unamplified speech-to-noise ratio values exceeded recommended acoustic standards in all classrooms. When sound-field and public address amplification systems were installed, speech-to-noise ratios improved considerably. When either amplification system was used, a uniform sound-field resulted. The applicability of both types of amplification system and their relative merits in special education classrooms are discussed.[Copyright of International Journal of Disability, Development and Education is the property of Routledge. Full article may be available at the publisher's website: http://dx.doi.org/10.1080/10349120600847508]
-
- 英文
- 期刊論文
-
- 1034912X
- https://bibliography.lib.eduhk.hk/tc/bibs/e75e2819
- 2010-09-06
最近的期刊論文
Modelling trait and state willingness to communicate in a second language: An experience sampling approach期刊論文
Teaching national identity in post-handover Hong Kong: Pedagogical discourse and re-contextualization in the curriculum期刊論文
Paradoxes in intercultural communication, acculturation strategies and adaptation outcomes: International students in Hong Kong期刊論文
The efficacy of the Peace Ambassador Project: Promoting children's emotional intelligence to address aggression in the early childhood classroom期刊論文
Brokering school improvement through a school–university partnership: A longitudinal social network analysis of middle leadership development期刊論文
L2 English listeners’ perceived comprehensibility and attitudes towards speech produced by L3 English learners from China期刊論文
School students’ aspirations for STEM careers: The influence of self-concept, parental expectations, career outcome expectations, and perceptions of STEM professionals期刊論文
Fundamental movement skills in Hong Kong kindergartens: A grade-level analysis期刊論文