PITCH ENHANCEMENT MOTIVATED BY RATE-DISTORTION THEORY

被引:0
作者
Moussa, Obada Alhaj [1 ]
Li, Minyue [2 ]
Kleijn, W. Bastiaan [1 ,3 ]
机构
[1] KTH Royal Inst Technol, Stockholm, Sweden
[2] Google Sweden, Stockholm, Sweden
[3] Victoria Univ Wellington, Sch Engn & Comp Sci, Wellington, New Zealand
来源
2014 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING (ICASSP) | 2014年
关键词
pitch enhancement; rate-distortion theory; speech quality; SPEECH RECOGNITION;
D O I
暂无
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
A pitch enhancement lter is designed with the objective to approach the optimal rate-distortion trade-off. The lter shows significant perceptual benefits, restating that information-theoretical and perceptual criteria are usually consistent. The lter is easy to implement and can be used as a complement to existing audio codecs. Our experiments show that it can improve the reconstruction quality of the AMR-WB standard.
引用
收藏
页数:5
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