Patent ID: 7720679
Filing Date: 2010-05-18
Classification: G10L

Abstract:
1. A speech recognition apparatus comprising: a microphone array comprising at least 3 microphones for measuring a profile of a base form sound from possible various sound source directions and a profile of a nondirectional background sound prior to recording a voice; a database for storing said profile of said base form sound from said possible various sound source directions and said profile of said nondirectional background sound measured prior to said recording of said voice; a sound source localization part for comparing a profile of the voice recorded by the microphone array with the profile of the base form sound from said possible various sound source directions and said profile of said nondirectional background sounds measured prior to said recording of said voice and stored in the database to estimate a sound source direction of the recorded voice; and a speech recognition part for executing speech recognition of voice data of a component of the sound source direction estimated by the sound source localization part.