Efficient Three-stage Pitch Estimation for Packet Loss Concealment

被引:0
|
作者
Sun, Xuejing [1 ]
Gadre, Sameer [1 ]
机构
[1] Cambridge Silicon Radio, Auburn Hills, MI 48326 USA
关键词
packet loss concealment; pitch; low complexity; Bluetooth;
D O I
暂无
中图分类号
TP18 [人工智能理论];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ;
摘要
This paper presents a low-complexity pitch estimation algorithm for packet loss concealment. The algorithm divides the pitch estimation into three stages with each additional stage providing further accuracy. Compared with a system based on G.711 Appendix I, the proposed algorithm requires approximately 32 percent fewer cycles on a DSP processor integrated in a Bluetooth chip. Furthermore, objective evaluation of the voice quality using PESQ showed the algorithm yields substantially higher scores.
引用
收藏
页码:633 / 636
页数:4
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