%0 Journal Article
%T DSP Implementation of an Improved DHMM Algorithm<br>一种改进的DHMM语音识别算法的DSP实现
%A WANG Wei-Qiang
%A <br>王维强
%J 计算机系统应用
%D 2012
%I 
%X This paper analysed and contrasted multi-algorithms about DHMM （Discrete Hidden Markov Models）, based on which it designed an improved DHMM algorithm, and then, applied it to the embedded speech recognition system. This system was realization of speaker-independent＇s isolated word recognition. The flatform of this system was centered ADSP-BF531. And it was expanded by big capacity SDRAM ＆ ROM. This system has many merits, e.g. small volume, high speedand, high reliability, high robustness and high expansibility, etc. It is very convenient for some special situations and has much market potential. The experiment confirms that its speech recognition accuracy reaches 94 percent for speaker-independent and small vocabulary. This paper introduced the improved HMM algorithm, hardware design and its application effect.
%K speech recognition
%K DHMM
%K characteristic pattern
%K vector quantization
%K speaker-independent
%K isolated word<br>语音识别
%K DHMM
%K 特征图案
%K 矢量量化
%K 非特定人
%K 孤立词
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=D4F6864C950C88FFCE5B6C948A639E39&aid=2F008F04A30914BAD74986E63222D529&yid=99E9153A83D4CB11&vid=659D3B06EBF534A7&iid=F3090AE9B60B7ED1&sid=7F5DDA4924737DF5&eid=F53C1B1C0260D259&journal_id=1003-3254&journal_name=计算机系统应用&referenced_num=0&reference_num=13