A variety of topics are discussed with regard to the application of dither to a digital audio system. Basic schemes are outlined and suitable types of dither noise are considered. Graphs are presented for analog dither of rectangular and Gaussian probability density functions which illustrate linearization of the quantizer staircase, noise modulation, and total noise. Digital dither is introduced, and it is urged that proper redithering ought to be applied whenever the audio signal is digitally manipulated.

Authors: Vanderkooy, John; Lipshitz, Stanley P.
Affiliation: Guelph-Waterloo Program for Graduate Work in Physics and Audio Research Group, University of Waterloo, Waterloo, Ont. N2L 3Gl, Canada
JAES Volume 35 Issue 12 pp. 966-975; December 1987
Publication Date: December 1, 1987

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