1. Practical AT session 3” WP4-D4.2. Prepared by: Shams Eldin Mohamed Ahmed Hassan Hearing Disability and Kurzweil 1000.

2. A genda Hearing Disability. Types of Hearing Loss FM Transmitter from Phonak. Kurzweil 1000 Windows Version 13.

3. Hearing Disability The idea that a person who was deaf could achieve a notable or distinguished status was not common, Abbé Charles-Michel de l'Épée founded the world's first public school for deaf students in Paris at the beginning of the 18 th century. He was one of the first advocates for using sign language in deaf education. Then The local Deaf communities insisted on maintaining their own Paris sign language. The success of the Paris school spawned similar schools throughout Europe and the New World.

4. 2.Hearing Disability Hearing loss, deafness, hard of hearing, or hearing impairment. Is a partial or total inability to hear. In children it may affect the development of language and can cause work related difficulties for adults. Factors that causes hearing loss. 1.Genetics 2.Age 3.exposure to noise 4.illness 5.chemicals and physical trauma

5. Basic Facts About Hearing Loss The World Health Organization recommends that young people limit the use of personal audio player to one hour a day in an effort to limit exposure to noise. About 20 percent of adults in the United States, 48 million, report some degree of hearing loss. At age 65, one out of three people has a hearing loss.

6. Basic Facts About Hearing Loss 60 percent of the people with hearing loss are either in the work force or in educational settings. About 2-3 of every 1,000 children are hard of hearing or deaf Estimated that 30 school children per 1,000 have a hearing loss.

7. Types of Hearing Loss 1.Degree of Hearing Loss The numbers are representative of the patient's hearing loss range in decibels (dB HL). Degree of hearing lossHearing loss range (dB HL) Normal–10 to 15 Slight16 to 25 Mild26 to 40 Moderate41 to 55 Moderately severe56 to 70 Severe71 to 90 Profound91+

8. 2.Configuration of Hearing Loss Refers to the degree and pattern of hearing loss across frequencies (tones), as illustrated in a graph called an audiogram. A hearing loss that only affects the high tones would be described as a high- frequency loss. Its configuration would show good hearing in the low tones and poor hearing in the high tones. If only the low frequencies are affected, the configuration would show poorer hearing for low tones and better hearing for high tones. Some hearing loss configurations are flat, indicating the same amount of hearing loss for low and high tones. Types of Hearing Loss

9. 2.How do we hear things? Sound waves enter the ear Go down the ear canal (auditory) And hit the eardrum, which vibrates The vibrations from the eardrum pass to the three ossicles (bones called the malleus (hammer), incus (anvil) and stapes) in the middle ear. These occicles amplify the vibrations, which are then picked up by small hair-like cells in the cochlea; they move as the vibrations hit them. The movement data is sent through the auditory never to the brain. The brain processes the data, which we interpret as sound.

10. Assistive Technology Unlike the situation years ago, nowadays just about everyone with any type or degree of hearing loss can be helped with some kind of hearing assistive technology– whether it be hearing aids, cochlear implants, other implantable devices, assistive listening devices, or captioning. Hearing Aids The most common devices. Audio loops (or hearing loop). FM Infrared systems

11. Assistive Technology audio or hearing loop is a wire that circles a room and is connected to the sound system. The loop transmits the sound electromagnetically. The electromagnetic signal is then picked up by the telecoil in the hearing aid or cochlear implant. No additional receiver or equipment is needed. Using a telecoil and hearing loop together is seamless, cost-effective, unobtrusive, and you don’t have to seek out and obtain special extra equipment.

12. Assistive Technology Infrared system uses invisible light beams to carry sound from the source to a personal receiver. http://soundinduction.co.uk/pages/infrared-hearing-systems/ (The sound source must be in the line of sight.) Different types of attachments may be connected to the personal receiver such as a neckloop or a behind-the- ear silhouette inductor. The telecoil then picks up sound from the receiver via the attachment. FM system works similarly, but sound is conveyed though radio waves to a personal receiver.

13. Roger Inspiro This wireless teacher microphone is the core component of any Roger system for education. It features two wearable microphone options, simplified menus and customizable soft keys. Maximum Performance improvement of up to 54% over other FM and digital systems and 35% over Dynamic FM technology. Roger Receivers Roger Receivers are a solution for every listener.

14. Kurzweil 1000 Kurzweil 1000 makes printed or electronic text accessible to people with blindness and visual impairments Founded in 1996 by Kurzweil Educational Systems. The company supplies two principal software products 1. Kurzweil 1000 2. Kurzweil 3000 Through its OCR and text to speech features, users can scan print materials. Kurzweil 1000 combines traditional reading machine technologies such as scanning, image processing, and text-to-speech with communication and productivity tools. Gives the Ability to Write and Edit Documents Features for note taking, summarizing content, and outlining text Save Time and Gain Independence

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