Variable frame rate parameter encoding via adaptive frame selection using dynamic programming
- 23 December 2002
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 1 (15206149) , 271-274
- https://doi.org/10.1109/icassp.1996.540410
Abstract
This paper presents a block-coded VFR strategy that removes the familiar "anchor frame" constraint in favor of a generalized delayed decision analysis. This approach is referred to as adaptive frame selection using dynamic programming (AFS/DP). The AFS/DP algorithm determines optimal breakpoint locations using a perceptually-based performance measure, accommodates fixed bit-rate operation, and operates with fixed delay and low complexity. The AFS/DP algorithm has been implemented in the context of the MELP vocoder at 2400 bits/sec, and has demonstrated comparable performance to block VFR methods, with lower coder delay.Keywords
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