Method of training a speech recognition model of an extended language by speech in a source language

A method of training a speech recognition model of an extended language by speech in a source language, comprising:

• creating a phonetic reference table of the source language, wherein the phonetic reference table comprises a source language audio file and a source language phonetic transcription that correspond to each other;
• obtaining an extended language text file of the extended language;
• according to a mark instruction, marking the extended language text file with an extended language phonetic transcription so as to create a text reference table of the extended language;
• training an acoustic model of the extended language by the phonetic reference table of the source language and the text reference table of the extended language;
• and
• training a language model of the extended language by the extended language text file of the extended language;
• wherein the speech recognition model of the extended language comprises the acoustic model and the language model of the extended language.