Assistive Technology for hearing and vision impairments

張志仲 副教授Jyh-Jong Chang

Email: jjchang@kmu.edu.twOffice: CS505

Tel: 2644Webpage: http://app.rm.kmu.edu.tw/chang/

Hearing and vision impairments

Hearing impairments Harding of hearing Loss of hearing

Vision impairments Visual field, contrast and color, light,

acuity Blind

Basic solutions for sensory impairment

Augmentation Microphone for hearing augmentation Magnifier for visual augmentation

Replacement Hearing problems

Visual and tactile as replacement Visual problems Hearing and tactile as replacement

AT in hearing impairments Alerting Devices and alarm

Visual Tactual Auditory

Amplification (hearing aids) Behind-The-Ear In-The-Ear Canal Aid Completely-In-the-Canal (CIC)

Assistive Listening Electronic devices used along with or instea

d of hearing aids to overcome problems of background noise and distance from the speaker

FM System Infra-red System Personal Amplifier

Telecommunications Fax machine Wireless Pagers / PDAs Text messaging CapTel Video Telephone Video Relay

Computers Computer Aided Real-time Translation Video Telephone

Television Telecaption Decoders Decoder Chips

Clocks and Wake Up Alarm Systems

Sonic Shake for Travel

Sonic Boom Alarm Clock with bed shaker

AlertMaster 6000 Alert Wireless Doorbell and Telephone Signaler

Clocks and Wake Up Alarm Systems

Sonic Shake for Travel

Sonic Boom Alarm Clock with bed shaker

AlertMaster 6000 Alert Wireless Doorbell and Telephone Signaler

Wireless TTY’s

Assistive Listening Devices

How Video Relay Works

A surgically implanted multi-channel electrode housed within the cochlea

For clients with severe to profound bilateral hearing loss with poor speech understanding

Extensive aural rehabilitation may be needed after surgery

Cochlear Implant

Hearing ear dog

Increase daily living functions, social interactions and communications

AT for visual impairments

Non-technical Solutions Organisation of the home (inside and outsid

e) Improved natural and artificial lighting Improved use of colour contrasts Elimination of hazards Organising and labelling items

Accessible printed material Large print Braille and Moon

Braille uses a raised six-dot system to represent letters and Moon uses a raised graphical representation of letters

Talking books and magazines Electronic books and newspapers

Personal assistive devices Devices for improving vision

Field expenders Telescope Eye glasses

Devices for reading Typoscope Enlarging photocopiers Magnifiers

PC with speech synthesis CCTV: Closed circuit TV –

Electronic reading machines Optical character reade

rs (OCRs) scan and translate printed text into a text file that can be read by a built-in speech synthesiser or used on a computer

Devices for writing Writing on paper Writing (typing) by computer Writing in Braille Making audio notes and letters

Devices for mobility /walking Canes and walking sticks More high-tech aids have recently begun to

be developed such as satellitebased orientation and navigation systems to support blind pedestrians.

Device for recreations TV audio description

Summary

AT for hearing impairments AT for Visual impairments

Augmentation vs. replacement