Patent ID: 8078470

Claim:
A method for indicating emotional attitudes of a speaker according to voice tone, said method comprising: a. obtaining a database comprising reference tones and reference emotional attitudes corresponding to each of said reference tones; b. pronouncing at least one word by a speaker for the duration of a sample period; c. recording said at least one word so as to obtain a signal representing sound volume as a function of frequency for said sample period; d. processing said signal so as to obtain voice characteristics of said speaker, wherein said processing includes determining a Function A, said Function A being defined as the average or maximum sound volume as a function of sound frequency, from within a range of frequencies measured in said sampled period, and wherein said processing further includes determining a Function B, said Function B defined as the averaging, or maximizing of said function A over said range of frequencies and dyadic multiples thereof; e. comparing said voice characteristics to said reference tones so as to indicate at least one of said reference emotional attitudes.