Panasonic WX-LA20 User manual

Sound Field Amplification: An Innovative

Educational Intervention for Mainstreamed

Learning Disabled Students (Summary)

F.E. Glassford, M.S., Helen Ray, Lewis S. Sarff, Ph.D.

The Directive Teacher, pp. 18-20 Summer/Fall 1984

Otitis Media (OM) typically causes a conductive hearing loss of 26 dB and may

persist from a few days to indefinitely. Students with OM are more academically

at risk due to muffled and inconsistent verbal signals in poor acoustically

designed classrooms and noisy environments. Due to high classroom noise

levels (40 to 50 dB), plural endings, low energy sounds and voiceless

consonants are masked.

18 research studies focused on the prevalence of OM in learning disability (LD)

students.

• OM is reported to be twice as common in learning disability (LD) population.

• One in four elementary LD students experience OM.

• Medical management helps to negate the detrimental effects of OM

• Children with OM may be at risk for delays in auditory, language and academic

skills

Children with OM suffer from:

• Depressed receptive abilities

• Omission of low intensity words in conversational speech

• Lack of rehearsed phrases

• Failure to respond to low intensity sounds

• Diffi culty with syntax, auditory processing and abstract reasoning

• Poor expressive speech

Project MARRS studied the incidence and impact of sound field amplification on

students with minimal hearing loss. The study included 1000 students ranging

Continued….

…cont’d

from 3rd to 6th grade in four elementary schools. The data suggests a cumulative

effect of minimal hearing loss on academic achievement and that many of

these students would qualify for services that LD students receive.

Two instructional techniques were applied in the study: teacher voice

amplification and small group instruction. In each of the four schools, one

classroom in each grade was equipped with equipment to amplify the teacher’s

voice. The teacher wore a lightweight wireless microphone that projected a

consistent signal approximately 10 dB above classroom noise levels. The

remaining students were in non-amplified classrooms and received supplemental

instruction individually or in small groups.

All grade levels that received sound field amplification significantly increased

SRA academic achievement test standard scores. This change was equal to or

greater than the scores obtained from resource room instruction. The following

reasons prove sound field amplification to be more cost effective:

1. Staff utilization (requiring fewer personnel to achieve academic gains).

2. Lower initial and continuing instructional costs.

3. More legally defensible when considered within the context of the least

restrictive environment mandates.

classroomaudio@us.panasonic.com

877.268.7215

Other manuals for WX-LA20

13

This manual suits for next models

3

Table of contents

Other Panasonic Accessories manuals

Panasonic

Panasonic MA22D28 User manual

Panasonic

Panasonic Digital Fiber Sensor FX-301 User manual

Panasonic

Panasonic KX-HNS107C User manual

Panasonic

Panasonic MA24D50 User manual

Panasonic

Panasonic HL-C2 Series User manual

Panasonic

Panasonic AJ-YA901 User manual

Panasonic

Panasonic HL-G1 Series User manual

Panasonic

Panasonic CX-400 Series User manual

Panasonic

Panasonic GP-X SERIES User manual

Panasonic

Panasonic PM-25 Series User manual

Panasonic

Panasonic HL-C203B User manual

Panasonic

Panasonic EE23 User manual

Panasonic

Panasonic MA3J7420G User manual

Panasonic

Panasonic MA3Z792D User manual

Panasonic

Panasonic TH-50PB2E User manual

Panasonic

Panasonic S-Link SL-PCAT User manual

Panasonic

Panasonic MA3X786 (MA786) User manual

Panasonic

Panasonic MA3S133 (MA133) User manual

Panasonic

Panasonic KX-HNS101 User manual

Panasonic

Panasonic WJ-PB85R08 User manual

Panasonic

Panasonic MN34120PAJ User manual

Panasonic

Panasonic EX-Z Series User manual

Panasonic

Panasonic GP-X SERIES User manual

Panasonic

Panasonic EX-10 Series User manual

Popular Accessories manuals by other brands

Hillco

Hillco 2810 Operator's manual

Siemens

Siemens QSA2700D Basic documentation

Contours

Contours ZY024 manual

Saivod

Saivod VS621 manual

Virtuox

Virtuox VirtuCLEAN 2.0 user manual

SCE

SCE ENVIRO-THERM SCE-TE170B24VSS user manual

Z-Wave

Z-Wave HSD-200Z user manual

turck

turck FMX-IM-2UPLI63FX quick start guide

Decagon Devices

Decagon Devices 10HS manual

UPPAbaby

UPPAbaby Cup Holder user manual

Elko

Elko SmartSensor Leakage Wireless manual

Grizzly

Grizzly H8371 instructions

IFM Electronic

IFM Electronic Efector 250 Series Brief instructions

DigiDesign

DigiDesign 888/24 I/O installation guide

PROZIS

PROZIS QUAY user manual

patagonia

patagonia PSI Vest user manual

SFC Energy

SFC Energy EFOY GO! manual

Axminster

Axminster Tooling Stylus Tip Ballpoint Pen Kit instruction manual