On April 13th, iFLYTEK (002230) published a patent entitled "A dialect voice conversion method, device, equipment and storage medium", the application date was December 2020, and the publication number was CN112652309A. According to the patent summary of the company, the dialect voice conversion method provided in this application can convert the source dialect voice of the target speaker into the target dialect voice that meets the speaking characteristics of the target speaker.

The patent also details the method of establishing a dialect training model. According to the official statement, since the target dialect voice is synthesized based on the target speaker's information, the synthesized target dialect voice has the speaking characteristics of the target speaker.