摘要
选用语音信号特征参数LPCC、Mel谱、Bark谱以及时域点对点欧氏距离四组参数,通过比较原始信号与经过编码解码后的信号之间的欧氏距离,反映了两组信号的相似程度,对ITU-T Rec.G.722.1、G.722.2和Speex Codec三种语音编码方案作出了客观评价,同时对三种方案的编解码计算量进行了评估,为语音编码研究领域研究者提供参考和借鉴。
This paper maked objective evaluation of speech coding schemes ITU-T Rec. G. 722.1, G. 722.2 and Speex Codec by calculating Euclidean distance of LPCC, Mel spectrum, Bark spectrum and a time domain point-to-point parameter between the original signal and the decoded signal. Calculation on processors was also assessed. We hope our work can provide reference for related people on related fields.
出处
《计算机应用》
CSCD
北大核心
2014年第A01期265-267,共3页
journal of Computer Applications
关键词
语音编码方案
客观评价
特征参数
计算量评估
speech coding scheme
objective evaluation
characteristic parameter
calculation assessment