Abstract: During the development of communication technology, there has been much research on acoustics. In recent years, many new problems have appeared in this interdisciplinary science, including the very important question of how to embed artificial intelligence and a knowledge base into the communication system. Accordingly, the physical, biological and psychological processes of acoustical signal perception and understanding by human beings have to be studied. To realize state-of-the-art communication and information technology, more effort should be devoted to this field in China.