Always, the processing of the audio frequency signal is mainly concentrated on speech processing, such as speech recognition and talks identify etc.
一直以来，音频信号的处理主要集中于语音识别、说话者识别等语音处理方面的研究。
Based on creating recognition algorithm of audio frequency and video frequency, the recognition method in accordance with HMM is constructed.
在建立音、视频识别算法的基础上，构造出符合HMM的识别方法。
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