05-11-2012, 05:30 PM
Speech Recognition Technologies
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SCOPE OF THE PROJECT
Health care
In the health care domain, even in the wake of improving speech recognition technologies, medical transcriptionists (MTs) have not yet become obsolete. The servicesprovided may be redistributed rather than replaced. Speech recognition is used to enabledeaf people to understand the spoken word via speech to text conversion, which is veryhelpful.
Military
Substantial efforts have been devoted in the last decade to the test and evaluation of speech recognition in fighter aircraft. Of particular note are the U.S. program in speechrecognition for the Advanced Fighter Technology Integration (AFTI)/F-16 aircraft (F-16VISTA), the program in France on installing speech recognition systems on Mirageaircraft, and programs in the UK dealing with a variety of aircraft platforms. In theseprograms, speech recognizers have been operated successfully in fighter aircraft withapplications including: setting radio frequencies, commanding an autopilot system,setting steer-point coordinates and weapons release parameters, and controlling flightdisplays. Generally, only very limited, constrained vocabularies have been usedsuccessfully, and a major effort has been devoted to integration of the speech recognizer with the avionics system.
Telephony and other domains
ASR in the field of telephony is now commonplace and in the field of computer gamingand simulation is becoming more widespread. Despite the high level of integration withword processing in general personal computing, however, ASR in the field of documentproduction has not seen the expected increases in use.The improvement of mobileprocessor speeds made feasible the speech-enabled Symbian and Windows MobileSmartphones. Speech is used mostly as a part of User Interface, for creating pre-definedor custom speech commands. Leading software vendors in this field are: MicrosoftCorporation (Microsoft Voice Command), Nuance Communications (Nuance VoiceControl), Vito Technology (VITO Voice2Go), Speereo Software (Speereo VoiceTranslator) and SVOX.
People with disabilities
People with disabilities can benefit from speech recognition programs. Speechrecognition is especially useful for people who have difficulty using their hands, rangingfrom mild repetitive stress injuries to involved disabilities that preclude usingconventional computer input devices. In fact, people who used the keyboard a lot anddeveloped RSI became an urgent early market for speech recognition. Speechrecognition is used in deaf telephony, such as voicemail to text, relay services, andcaptioned telephone. Individuals with learning disabilities who have problems withthought-to-paper communication (essentially they think of an idea but it is processedincorrectly causing it to end up differently on paper) can benefit from the software