基于ARM嵌入式语音识别系统研究

Research of Embedded Sound Identification System Based on ARM

在分析语音识别原理的基础上,设计了一个基于ARM微控制器的语音识别子系统,用于嵌入式系统中的语音识别。该语音识别子系统由ARM处理器和UDA1341专用语音芯片为核心,配合其它功能电路,能够独立完成语音识别的工作。ARM芯片作为系统的控制芯片,上位机负责对语音信号的隐马尔可夫模型建立,从而使得嵌入式系统的语音识别更为方便简捷,并且该子系统具有一定的通用性和可剪裁性。结果表明,该系统设计合理可行,具有语音识别效果好、准确性高等优点。

A sound identification subsystem based on ARM Micro Controller, was designed for embedded systems. This sound identification subsystem, taking ARM processor and UDAI341 as its core, can accomplish sound identification independently by collaborating with some other function circuits. ARM chip as the system control cblp and the upper computer is responsible for setting up the HMM of sound signal, thus make the embedded sound identification system more convenient and simpler. The subsystem is also generalizable and cuttable. The result indicates that the design of this system is practical and advantageous in the sound identification and high degree of accuracy.