Voice recognition device, voice recognition method, and voice recognition program

摘要

A voice recognition device, a voice recognition method and a voice recognition program capable of appropriately restricting recognition objects based on voice input from a user to recognize the input voice with accuracy are provided. The voice recognition device includes a first voice recognition processing unit for executing processing of assigning weights of a first ratio to a sound score and a language score calculated for the input voice and recognizing the voice using the obtained scores to determine a type of a domain representing the control object based on a result of the processing, and a second voice recognition processing unit, using the domain of the determined type as a recognition object, for executing processing of assigning weights of a second ratio to the sound score and the language score calculated for the input voice, the weight on the sound score being greater in the second ratio than in the first ratio, and recognizing the voice using the obtained scores to determine the control content of the control object based on a result of the processing.