An alternative method of digitizing music signals is presented. It relies on the techniques of spectral noise shaping and oversampling, which achieve theoretical and computed signal-to-quantization-noise ratios of 110-120 dB. This encoding scheme is based on high order delta-sigma modulation and is referred to as HLDSM A/D conversion. A hardware conversion of this system was developed measuring 80-dB SQNR and 0.007% total harmonic distortion. Potentially the HLDSM A/D converter offers noise and distortion performance superior to pulse-code modulation, a simpler hardware realization and reduced cost.

Authors: Darling, Timothy F.; Hawksford, Malcolm J.
Affiliations: University of California at Santa Barbara, Santa Barbara, CA ; University of Essex, Colchester, Essex, UK(See document for exact affiliation information.)
JAES Volume 38 Issue 12 pp. 924-943; December 1990
Publication Date: December 1, 1990 Import into BibTeX
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=6003

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