Speech recognition model training device, speech recognition model training method, and speech recognition model training program

A speech recognition model training method comprising:

• performing machine learning using text data of a target domain and synthesized speech data related to the text data of the target domain and generating a pre-trained model;
• and
• performing machine learning on the pre-trained model using text data of a second domain different from the target domain and natural speech data related to the text data of the second domain and generating a speech recognition model of the target domain.

A non-transitory computer-readable recording medium stored with a speech recognition model training program for causing a computer to execute:

• a pre-training process of performing machine learning using text data of a target domain and synthesized speech data related to the text data of the target domain and generating a pre-trained model;
• and
• an additional training process of further performing machine learning on the pre-trained model using text data of a second domain different from the target domain and natural speech data related to the text data of the second domain and generating a speech recognition model of the target domain.