Voice recognition system and method that performs voice recognition regarding low frequency domain sound in standby mode

摘要

PURPOSE: A voice recognition system which recognizes voice to voice signal of low frequency area at wait state is provided to minimize power consumption. CONSTITUTION: A voice recognition system comprises: a codec unit(2) for converting an input sound signal into a digital signal; a clock unit(3) which provides clock pulse for operation of the codec unit; and a control unit(1) for performing sound recognition to sampling data. The control unit converts the frequency of clock pulse.