Proceedings of the 2000 IEEE Workshop on Speech Coding, Delavan, Wisconsin, September 17-20, 2000.
Results on Reverse Water-Filling, SNR, and Log-Spectral Error in Codebook-Based Coding
doi: 10.1109/SCFT.2000.878387Cite This Publication
Stephen D. Voran, “Results on Reverse Water-Filling, SNR, and Log-Spectral Error in Codebook-Based Coding,” in Proceedings of the 2000 IEEE Workshop on Speech Coding Delavan, Wisconsin, September 17-20, 2000..
Stephen D. Voran 
Abstract: This paper identifies optimum levels of reverse water-filling for codebook-based coding of noise and speech signals. We find that there is little to be gained from optimizing an effective rate parameter. We identify trade-offs between SNR and log-spectral error. We show that the use of a gain factor compares favorably with reverse water-filling in some situations.
Keywords: signal processing; signal-to-noise ratio; speech coding; bit rate; speech enhancement; Density measurement; Distortion measurement; Subspace constraints; Vectors; noise levels
For technical information concerning this report, contact:
Stephen D. Voran
Institute for Telecommunication Sciences
(303) 497-3839
svoran@ntia.gov
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