Deaf Technology :: essays research papers

-TTYTTYs (also called Telecommunication Devices for the Deaf (TDD) and text surrounds) are used for bipartisan text conversation over a telephone line. They are the basal tool used by deaf people (and some profound of earshot people) for telephone conversation. Other visual telecommunications technologies and services, such as meshwork chat and messaging, email, e-paging, and fax and e-mail are also used in telecommunications by people who are deaf or concentrated of hearing. -TRSTelecommunications pass services (TRS) provide voice telephone users and people who are deaf, hard of hearing, or diction-disabled to communicate over a regular telephone line. TRS is mandated by the Americans with Disabilities Act and is regulated by the Federal Communications Commission.There cod been many new mitigatements in TRS in the last some(prenominal) years. These improvements name users choices that make TRS calls more natural and functionally equivalent to voice telephone communicat ions.-Video relay serviceUsing a high-speed Internet liaison or ISDN, a video connection is established a qualified sign language interpreter relays the conversation with the voice telephone political party.-CapTelCaptioned mobilize is a new product of Ultratec, being tested in several states. CapTel is an innovative service in which the operators repeat the words of the hearing party into an automatic dustup recognition system for rapid transcription. Voice and entropy are carried on one line so that the hard of hearing or deaf user can monitor the speech as well as see the transcription. The CapTel phone is set up for telephone dial through so that the user does not need to dial the relay service first.-ASR Automatic speech recognition is the most successful and unblemished of these applications. It is currently making a use of a technique called shadow or sometimes called voicewriting. Rather than have the vocalisers speech directly transcribed by the system, a hearing p erson whose 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 multitude of people.