Patent ID: 6032115
Filing Date: 2000-02-29
Classification: G10L

Abstract:
A sound recognition apparatus, comprising:an input-means for simultaneously inputting speech through a basic microphone of known frequency characteristics and an input microphone of unknown frequency characteristics, the basic microphone being different from a dictionary data microphone of known frequency characteristics which collected data for previously creating a recognition dictionary;an analysis means for respectively analyzing the frequency of the input speech through the basic microphone and the input microphone;a frequency characteristics measurement means for calculating as a first difference data, the difference between the frequencies of the input speech of the basic microphone and the input microphone, and for calculating frequency characteristics of the input microphone according to the first difference data and the frequency characteristics of the basic microphone;a frequency characteristics correction means for calculating as a second difference data, the difference between the frequency characteristics of the input microphone and the known frequency characteristics of the dictionary data microphone which collects data for creating a recognition dictionary, and for correcting input speech to be recognized through the input microphone as speech data of the frequency characteristics of the dictionary data microphone according to the second difference data; anda recognition means for recognizing corrected speech data by referring to the recognition dictionary storing data previously created through the dictionary data microphone.