关键词：通信;语音识别;声音认证
摘 要：Speech is possibly the most efficient way humans can communicate with a machine. If acoustic waves could perfectly map to words, a variety of exciting applications could be realized. However, speech recognition is difficult in reality. One reason is that there is much variability in people’s voices. In addition, many applications of speech-recognition require voice authentication or speaker-recognition in order to be practically useful. Speaker identification systems can account for voice variability, and also can provide voice authentication, and hence are an interesting area of research.