Patent ID: 9002709
Filing Date: 2015-04-07
Classification: G10L

Abstract:
1. A voice recognition system, comprising: voice segmentation unit which calculates a voice feature value based on time-series input sound data, segmenting one of a section of voice of said time-series input sound data and a section of non-voice of said time-series input sound data by comparing a threshold value and said voice feature value, and determining one of said section and a section made by adding a margin of designated length before and after said original section as a first voice section; search unit which determines a section to be a target of a voice recognition as a second voice section based on a likelihood of voice and a likelihood of non-voice calculated based on a voice recognition feature value; parameter updating unit which updates at least one of said threshold value and said margin used upon said voice segmentation unit determining the first voice section according to a difference between length of said first voice section and length of said corresponding second voice section; and said voice segmentation unit which determines the first voice section using one of the threshold value and the margin updated by said parameter updating unit.