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Final technical rept.,
THRESHOLD TECHNOLOGY INC DELRAN N J
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This report describes the design, principles of operation and performance characteristics of an Advanced Development Model of a limited-vocabulary voice recognition system. This system is intended to demonstrate the use of voice data entry in cartographic applications such as the processing of Digital Radar Landmass Simulator DRLMS data and the preparation of Flight Information Publications FLIPS data. Three separate operating computer programs were supplied for system demonstrations. The first program, the DRLMS Fixed Node program, is designed to simulate the manner in which voice could be used to input DRLMS FAC data to a cartographic computer. The second program simulates a possible mode of inputting data for the construction of FLIPS terminal charts. The program is a variable node program with a total vocabulary size of 500 words. This structure of this program allows recognition of a maximum of 100 words in any node of a maximum of 30 nodes. Node structures may be easily changed. The cartographic word recognition system is based upon the Threshold Technology Inc. TTI commercial VIP-100 isolated-word recognition system. Performance tests conducted at TTI disclosed an average system word recognition accuracy of 99 for talkers experienced with word recognition systems.
APPROVED FOR PUBLIC RELEASE