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|Title:||Comparison of pitch prediction and adaptation algorithms in forward and backward adaptive CELP systems|
|Citation:||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|
|Appears in Collections:||Staff Publications|
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