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Panasonic WX-LA20 Manual page 2

Classroom acoustics
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...cont'd
classroom acoustics, close SLD should be utilized whenever possible. One way
to improve SLD is to use small group instruction over traditional seating
arrangements.
3. Utilization of classroom amplification
The implementation of classroom amplification can decrease SLD and
significantly affect speech perception. The Mainstream Amplification Resource
Room Study (MARRS, 1981) demonstrated drastic improvements in academic
achievement when students received amplified instruction.
By increasing the teacher's voice by approximately 10 dB and providing a
uniform sound field throughout the classroom, students display perceptual and
psycho-educational improvements.
The large body of acoustic research in classrooms supports the need for good
acoustics in teaching environments. Several strategies can alleviate the
damaging effects of poor acoustics, one of which includes sound field
amplification. By adopting these solutions and strategies, it will be in the best
interest of the students.
Classroomaudio@us.panasonic.com
877.268.7215

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