Lipshitz, S.P., and R.A. Wannamaker, "Dithered Noise Shapers and Recursive
Digital Filters," presented at the 94th Convention of the Audio Engineering
Society, Berlin, Germany, 1993 Mar.
The question of which spectrally shaped dither signals are appropriate
for use in quantizing systems, with and without noise shaping error
feedback, or in recursive digital filters using dithered quantization
at the output, is addressed. It is shown that dithers which are
acceptable without feedback present may be unacceptable if feedback
is introduced. In each case, certain broad classes of
dither generators are shown to be appropriate for audio applications.