Speech dialogue device and speech dialogue method

A speech dialogue method in a speech dialogue device, comprising:

• recognizing, by a speech recognizer, uttered speech;
• selecting, by a response-mode selector, a mode of a response corresponding to a keyword included in a recognition result of the speech recognizer using a response-mode correspondence table defining a correspondence relationship between the keyword for instructing start of a speech dialogue and the mode of the response;
• starting, by a dialogue controller, the speech dialogue when the keyword is included in the recognition result of the speech recognizer,
• determining, by the dialogue controller, a response in accordance with a subsequent recognition result from the speech recognizer, and
• controlling, by the dialogue controller, a mode of the response in such a manner as to match the mode selected by the response-mode selector;
• and
• generating, by a speech output controller, speech data on a basis of the response and the mode that are controlled by the dialogue controller and outputting the speech data to a speaker,
• wherein the speech dialogue method further includes:
• recognizing, by the speech recognizer, the uttered speech using a local speech recognition dictionary in the speech dialogue device;
• and
• using and causing, by the speech recognizer, an external speech recognition server to recognize the uttered speech and obtaining a recognition result,
• selecting, by the response-mode selector, a local recognizer or a server recognizer that corresponds to the keyword using the response-mode correspondence table defining a correspondence relationship between the keyword and the local recognizer or the server recognizer, and
• switching, by the dialogue controller, to the local recognizer or the server recognizer selected by the response-mode selector and
• determining, by the dialogue controller, the response in accordance with a recognition result from the local recognizer or the server recognizer after the switching step.