2011年9月19日星期一

Voice Recognition And Response

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Voice recognition and voice response promise apt be the easiest usage of providing a user interface as data entrance and conversational computing, since lecture is the easiest, most natural means of person communication. Voice input and output of file have now convert technologically and economically possible as a variety of applications.

Optical scanning devices read txt or graphics and convert them into digital input for a computer. They include optical character recognition (OCR) equipment that can read special-purpose characters and codes. Optical scanning of pages of txt and graphics is primarily popular in desktop promulgating applications. Thus, optical scanning provides a method of straight input of data from source documents into a computer system. Optical Scanning. There are many types of optical readers, yet they always emplo photoelectric devices to scan the characters being read. Reflected light patterns of the data are converted into electronic impulses, which are then accepted as input into the computer system Devices can currently read many types of printing and graphics. Progress is continually being made in improving the reading competence of scanning equipment.

Optical scanning devices such for handheld wands are used to peruse data above goods tags and additional media. This frequently involves reading bar coding, a code namely utilizes bars to characterize symbols. Thus, Universal Product Code (UPC) bar coding on packs of food items and additional productions has become commonplace. For example, UPC bar coding is read by the automated checkout scanners found in numerous supermarkets. Supermarket scanners emit laser beams, which are reflected off a UPC bar code. The reflected picture is converted to electronic thrusts, which are sent to the in-store minicomputer, where they are matched with pricing information. Pricing information is returned to the terminus, visually displayed, and printed on a receipt.

Voice recognition systems diagnose and classify speech or vocal tract patterns and become them into digital codes for entry into a microcomputer system. Most voice recognition systems necessitate "education" the computer to recognize a limited vocabulary of criterion words for each user. Operators exercise the system to acknowledge their voices along repeating every word in the vocabulary about 10 periods. Trained systems regularly achieve a 99 percentage and word recognition rate. Speaker-independent voice recognition systems, which grant a computer to know a voice it has not listened before, are used in a limited digit of applications.

Voice response devices range from mainframe audio-response elements to voice-messaging minicomputers to speech synthesizer microprocessors. Speech microprocessors can be found in toys, computers, utensils, cars, and a variety of other purchaser, advertisement, and industrial products. Voice-messaging minicomputer and mainframe audio response units use voice-response software to verbally guide one operator through the steps of a task in many kinds of activities. They may likewise allow computers to respond to verbal and touch-tone input over the tel. Examples of applications embody computerized telephone call switching, telemarketing surveys, bank pay-by-phone bill-paying services, stock quotations services, university registration systems, and client credit and account balance inquiries.

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Voice recognition devices are used in go positions where operators need to execute data entry without using their hands to opener in data or directions, or where it would Cartier Replica cater faster and more accurate input. For example, voice recognition systems are being used by manufacturers for the inspection, inventory, and quality control of a variety of products, and by airlines and bundle delivery companies for voice-directed arranging of luggage and parcels. Voice recognition is also available fjust aboutme microcomputer software archives for voice input of data and commands. However, voice input is anticipated to become very fashionable for most word processing applications in the next few annuals.

OCR-based optical scanning systems are used extensively in the credit card wink Tag Heuer Replica operations of credit card companies, banks, and oil companies. They are also used to process! Utility bills, insurance premiums, airline tickets, and money enroll machine tapes. QCF scanners are used to automatically sort send, score tests, and process a broad variety of forms ii affair and government.

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