中文摘要：

语音情感识别是近年来新兴的研究课题之一，特征参数的提取直接影响到最终的识别效率，特征降维可以提取出最能区分不同情感的特征参数。提出了特征参数在语音情感识别中的重要性，介绍了语音情感识别系统的基本组成，重点对特征参数的研究现状进行了综述，阐述了目前应用于情感识别的特征降维常用方法，并对其进行了分析比较。展望了语音情感识别的可能发展趋势。

英文摘要：

Speech emotion recognition is one of the new research projects, the extraction of feature parameters extraction influence the final recognition-rate efficiency directly, dimension reduction can extract the most distinguishing feature parameters of different emotions. The importance of feature parameters in speech emotion recognition is point out. The system of speech emotion recognition is introduced. The common methods of feature parameters is detailed. The common methods of dimension reduction which are used in emotion recognition are compared and analyzed. The development of speech emotion recognition in the future are prospected.