An analysis of subtractively and nonsubtractively dithered quantizing systems, with and without noise-shaping error feedback, is presented. Detailed comparison of their relative advantages and disadvantages is made, including their inherent signal-to-noise ratios and the requirement for knowledge of the dither signal at the output of subtractive systems. A practical discussion of the implications is presented as well as the most thoroughgoing mathematical analysis of either system which currently exists.
Author:
Wannamaker, Robert A.
Affiliation:
University of Waterloo, Waterloo, Ontario, Canada
AES Convention:
97 (November 1994)
Paper Number:
3920
Publication Date:
November 1, 1994
Subject:
DSP—Analog to Digital, Digital to Analog
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