Joint Optimization Algorithm of Multi-parameter Codebook Size Based on Superframe Mode

摘要：

An algorithm based on superframe mode has been proposed to jointly optimize the multi-parameter codebook sizes in research of 0.3Kb/s speech coding algorithm based on MELP.Codebook sizes for Pitch,Line Spectrum Frequency (LSF) and Short term energy in various superframe modes are optimized together depending on the bits to quantize them.Simulation results showed that the proposed algorithm greatly reduced the quantization error of the parameters while enhancing the reconstructed speech quality compared with the classic algorithm without jointly optimizing the codebook sizes.

作者: XU Ming LI Ye CUI Huijuan TANG Kun

作者单位: State Key Laboratory of Microwave and Digital Communication,Department of Electronic Engineering,Tsinghua University,Beijing 100084,China

会议类型: 国际会议

会议名称: 9th International Conference on Signal Processing(第九届国际信号处理学术会议)(ICSP08)

会议地点: 北京

会议语种:英文

在线出版日期: 2008-10-26（万方平台首次上网日期，不代表论文的发表时间）