DocumentCode
179870
Title
Pitch enhancement motivated by rate-distortion theory
Author
Moussa, Obada Alhaj ; Minyue Li ; Kleijn, W. Bastiaan
Author_Institution
Electr. Eng., KTH - R. Inst. of Technol., Stockholm, Sweden
fYear
2014
fDate
4-9 May 2014
Firstpage
6299
Lastpage
6303
Abstract
A pitch enhancement filter is designed with the objective to approach the optimal rate-distortion trade-off. The filter shows significant perceptual benefits, restating that information-theoretical and perceptual criteria are usually consistent. The filter 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.
Keywords
audio coding; rate distortion theory; speech codecs; speech processing; AMR-WB standard; audio codecs; optimal rate-distortion trade-off; pitch enhancement filter; rate-distortion theory; reconstruction quality; Harmonic analysis; Noise; Quantization (signal); Rate-distortion; Speech; Speech enhancement; pitch enhancement; rate-distortion theory; speech quality;
fLanguage
English
Publisher
ieee
Conference_Titel
Acoustics, Speech and Signal Processing (ICASSP), 2014 IEEE International Conference on
Conference_Location
Florence
Type
conf
DOI
10.1109/ICASSP.2014.6854816
Filename
6854816
Link To Document