Overview of the Speech Recognition Technology

As a cross-disciplinary, speech recognition is based on the voice as the research object. Speech recognition allows the machine to turn the speech signal into text or commands through the process of identification and understanding, and also makes the function of natural voice communication. Speech recognition involves many fields of physiology, psychology, linguistics, computer science and signal processing, and is even related to the person's body language, and its ultimate goal is to achieve natural language communication between man and machine. The speech recognition technology is gradually becoming the key technology of the IT man-machine interface
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.The paper describes the development of speech recognition technology and its basic principles, methods, reviewed the classification of speech recognition systems and voice recognition technology, analyzed the problems faced by the speech recognition.