Word structure similarity will closely relate to confusion in aural comprehension due to the phoenetic similarity. This paper is aiming at giving the tools for disparity analysis between two words notifing the word structure, and provides the operation procedure for the disparity format which is defined in this paper. Disparity between two words is expressed on the disparity coordinate, and word similarity and substitution error word pair can be analysed on the coordinate. New concept for the error analysis is also propesed and experimental results are demonstrated here.
This disparity analysis method will be useful for the voice communication's quality analysis and estimation in many field especialy in the voice input applications.