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Fig. 3

image

A quantization example using the Gaussian-optimized least-squares quantization scheme with dithering to quantize a sinc function. 4-bit quantization and a single scaling factor were used. Left plot: result of encoding and decoding. Because the quantization is optimized for Gaussian distributed values, the quantization steps are smaller near zero. Central and right plot: average of 3 and 100 times encoding and decoding respectively.

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