1. introduction to deafness
DESCRIPTION
National Deaf Children's Society (NDCS) - Deaf friendly teachers' training presentations: Introduction to deafnessTRANSCRIPT
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Presenter
Introduction to deafness
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• The ear
• Sound
• Degrees of deafness
• Types of deafness
• The impact of deafness
• Resources
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6
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Oticon: Hearing Centre Online
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•www.hearingcenteronline.com/ear2/shtml
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LO
W P
ITC
HL
OW
PIT
CH
HIG
H P
ITC
HH
IGH
PIT
CH
SOFTSOFT
LOUDLOUD
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Profound: > 96dB
Severe: 71 - 95 dB
Moderate: 41 - 70dB
Mild deafness:Mild deafness: Would hear a baby crying or music from a stereo but may be unable to hear whispered conversation.Moderate deafness:Moderate deafness:
Would hear a dog barking or telephone ringing but may be unable to hear a baby crying.
Severe deafness:Severe deafness: Would hear a chainsaw or drums being played but may be unable to hear a piano or a dog barking.
Profound deafness:Profound deafness: May hear a large lorry or aeroplane, would be unable to hear a telephone ringing.
Mild: 20 - 40dB
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–www.phonak.com/consumer/hearing/hearinglossdemo.htm
–www.cdc.gov/niosh/mining/topics/hearingloss/hlsoundslike.htm
–www.hear-it.org/forside.dsp?forside=yes&area=24
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