Patent ID: 7016836
Filing Date: 2006-03-21
Classification: G10L

Abstract:
1. A speech recognition system comprising: a plurality of voice pickup means for picking up uttered voices; determination means for determining a speech signal suitable for speech recognition from speech signals output from said plurality of voice pickup means; and speech recognition means for performing speech recognition based on said speech signal determined by said determination means, wherein said determination means acquires an average S/N value and average voice power of each of said speech signals output from said plurality of voice pickup means and selects said speech signal whose average S/N value and average voice power are greater than respective predetermined threshold values as said speech signal suitable for speech recognition, and wherein said determination means determines a candidate order of those speech signals whose average S/N values and average voice powers are greater than said respective predetermined threshold values and which are candidates for said speech signal suitable for speech recognition, in accordance with said average S/N values and average voice powers; and said speech recognition means sequentially executes speech recognition on said candidates in accordance with said candidate order from a highest candidate to a lower one.