An Optimization Scheme for SVAC Audio Encoder

摘要：

　　Both audio signals and MEL-frequency cepstral coefficients are encoded in SVAC audio encoder.These two independent processing leads to structural redundancies for the encoder design.This paper proposes an optimization scheme using MEL-frequency cepstral coefficients to realize high-frequency reconstruction and removes Bandwidth Extension module of the original encoder.Simulation results prove that the new encoder has considerable improvement on structure, reconstructed high-frequency precision and coding quality.

关键词： SVAC audio encoder MEL-frequency ceptral coefficients bandwidth expansion linear predictive coding coefficients quality evaluation

作者: Ruo Shu Shibao Li Xin Pan

作者单位: China University of Petroleum, Computer and Communication Engineering Institute,Qingdao 266580, China

会议类型: 国际会议

会议名称: 8th International Conference on Intelligent Information Processing(2014年IFIP智能信息处理国际会议)

会议地点: 杭州

会议语种:英文

页码: 221-229

在线出版日期: 2014-10-01（万方平台首次上网日期，不代表论文的发表时间）