Deaf Technology :: essays research papers

-TTYTTYs (also called Telecommunication Devices for the deafen (TDD) and text teleph wholenesss) are used for two-way text confabulation oer a telephone line. They are the primary tool used by deaf people (and some hard of hearing people) for telephone conversation. different visual telecommunications technologies and services, such as Internet chat and messaging, email, e-paging, and fax and e-mail are also used in telecommunications by people who are deaf or hard of hearing. -TRSTelecommunications relay services (TRS) provide parting telephone exploiters and people who are deaf, hard of hearing, or lyric-disabled to communicate oer a regular telephone line. TRS is mandated by the Americans with Disabilities Act and is regulated by the Federal Communications Commission.There have been many new improvements in TRS in the last several years. These improvements give exploiters choices that make TRS calls more earthy and functionally equivalent to voice telephone communication s.-Video relay servicevictimization a high-speed Internet connection or ISDN, a photograph connection is established a qualified sign language congresswoman relays the conversation with the voice telephone party.-CapTelCaptioned Telephone is a new product of Ultratec, creation tested in several states. CapTel is an innovative service in which the operators repeat the words of the hearing party into an automatic speech erudition system for rapid transcription. Voice and data are carried on one line so that the hard of hearing or deaf user can monitor the speech as well as recover the transcription. The CapTel phone is set up for dial through so that the user does not need to dial the relay service first.-ASR Automatic speech recognition is the most successful and accurate of these applications. It is currently making a use of a technique called shadowing or sometimes called voicewriting. sooner than have the speakers speech steerly transcribed by the system, a hearing person w hose speech is well-trained to an ASR system repeats the words being spoken. This technique can greatly improve the accuracy of the system compared to direct ASR transcription of speech while that speaker is engaged in conversation or lecturing to a group of people.