Methods for forming reference voice patterns, and methods for co

Details Methods for forming reference voice patterns, and methods for co Methods for forming reference voice patterns, and methods for co

1990-01-05

1991-07-16

Harkcom, Gary V.

Electrical audio signal processing systems and devices

One-way audio signal program distribution

Public address system

G10L 506

Patent

active

050330896

ABSTRACT:
A method for forming a reference voice pattern to be stored in a library for use in identifying an unknown input sound. The method comprises the steps of inputting a first sound pronounced for a particular letter combination by a speaker to form a first voice pattern, the first voice pattern represented by a sound energy level as a function of time; examining the first voice pattern to determine whether or not an intermediate voiceless interval is present within a predetermined time period at least from either a beginning or terminating end of the first voice pattern; repeating the inputting and examining steps for a second sound; combining the first and second voice patterns to define the reference voice pattern, wherein, if either of the first and second voice patterns has a voiced portion in the predetermined time period and the other of the first and second voice patterns does not have a corresponding voiced portion in the predetermined time period, the combining step comprises adding the voiced portion to said other of the first and second voice patterns.

REFERENCES:
patent: Re32172 (1986-06-01), Johnston et al.
patent: 4696041 (1987-09-01), Sakata
patent: 4720802 (1988-01-01), Damoulakis et al.
patent: 4731845 (1988-03-01), Matsuki et al.
patent: 4751737 (1988-06-01), Gerson et al.
patent: 4802224 (1989-01-01), Shiraki
patent: 4827519 (1989-05-01), Fujimoto et al.

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