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Quantizers are generally designed either for fixed-rate coding or variable-rate coding. Under common conditions, variable-rate quantization leads to the same mean distortion for all quantization cells whereas fixed-rate is associated with a fixed bit allocation for each quantization operation. We show that both are special cases of the solution of a more general constraint that facilitates a practical trade-off between mean rate and rate outliers and mean distortion and outliers in distortion.doi:10.1109/icassp.2011.5947286 dblp:conf/icassp/KleijnK11 fatcat:64hp6rwgx5czdataowxo3cbisi