Dialogue learning apparatus, response audio generation apparatus, dialogue learning method, response audio generation method and program

A dialogue learning method executed by a dialogue learning device, comprising:

• acquiring dialogue data including a dialogue context indicating text of a dialogue and speech data of a response sentence of the dialogue;
• calculating an acoustic feature value on the basis of the speech data;
• and
• learning a dialogue generation model for generating a dialogue on the basis of the dialogue context and data indicating the calculated acoustic feature value.

A response speech generation method executed by a response speech generation device, comprising:

• acquiring a dialogue context indicating text of a dialogue;
• calculating a quantized acoustic feature value on the basis of the dialogue context using a dialogue generation model for generating a dialogue;
• and
• generating speech data indicating a response sentence on the basis of data indicating the quantized acoustic feature value.