Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/61952
Title: Comparison of pitch prediction and adaptation algorithms in forward and backward adaptive CELP systems
Authors: Chen, H.
Wong, W.C. 
Ko, C.C. 
Issue Date: Aug-1993
Source: Chen, H.,Wong, W.C.,Ko, C.C. (1993-08). Comparison of pitch prediction and adaptation algorithms in forward and backward adaptive CELP systems. IEE Proceedings, Part I: Communications, Speech and Vision 140 (4) : 240-245. ScholarBank@NUS Repository.
Abstract: The paper examines several pitch estimation and adaptation algorithms in forward and backward adaptive CELP systems. The authors compare open-loop and closed-loop pitch estimation structures, the use of integer and non-integer delay pitch prediction, and the implementation of block adaptive and sample recursive pitch tracking algorithms. Forward adaptive systems are found to perform better with a closed-loop structure in conjunction of non-integer delay pitch prediction. However, temporal and noise feedback problems suggest that open-loop structures with hybrid pitch tracking are better suited for backward adaptive systems.
Source Title: IEE Proceedings, Part I: Communications, Speech and Vision
URI: http://scholarbank.nus.edu.sg/handle/10635/61952
ISSN: 09563776
Appears in Collections:Staff Publications

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