DEVICE AND METHOD FOR CONTROL BY SPEECH RECOGNITION, CONTROLLED SYSTEM UNIT, SYSTEM FOR USING CONTROL BY SPEECH RECOGNITION AND STORAGE MEDIUM RECORDING PROGRAM FOR CONTROL BY SPEECH RECOGNITION

摘要

PROBLEM TO BE SOLVED: To improve recognition performance by performing a recognition with the suitable number of phrases corresponding to the operating state of a controlled system. SOLUTION: When the state of a power source is changed at an audio source unit 21, information concerning how the state changes is transmitted from an operating state output part 211 through a communication line 23. It is judged from the received information by a dictionary switching control part 224 how the state of the power source is changed and when the power source of the audio source unit 21 is changed to off, a recognition dictionary to be used for recognizing phrases is switched to a recognition dictionary 222 storing only the words required when the power source is off but when the power source of the audio source unit 21 is changed to on, the recognition dictionary to be used for recognizing phrases is switched to a recognition dictionary 223 storing only the words required when the power source is on.