A Pitch Detection Algorithm for Ultra-low-bit-rate Vocoder

摘要：

　　Piteh is one of the most important parameters to describe the speech characteristics.The paper proposed a new pitch detection algorithm for ultra-low-bit-rate vocoder based on dynamic programming as well as frequency-time domain analysis to eliminate the multi-half pitch errors.The algorithm detected the candidate pitches based on auto correlation function firstly and then utilized the dynamic programming and frequency-time domain analysis to get the final pitch.Simulation result showed that the algorithm had a better performance and could eliminate the multi-half pitch errors efficiently.

关键词： Pitch detection ultra-low-bit-rate dynamic programming frequency-time domain analysi

作者: Li Ye Jiang Jingsai Hao Qiuyun Fan Yanhong Ma Xiaofeng Guo Qiang

作者单位: Shandong Computer Science Center Shandong Provincial Key Laboratory of computer Network Jinan, China

会议类型: 国际会议

会议名称: 2012 2nd International Conference on Computer Application and System Modeling(2012第二届计算机应用与系统建模国际会议)(ICCASM-2012)

会议地点: 沈阳

会议语种:英文

页码: 706-709

在线出版日期: 2012-07-27（万方平台首次上网日期，不代表论文的发表时间）