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Convention Paper

Why Direct Stream Digital (DSD) is the best choice as a digital audio format.

Authors: Nuijten, Peter; Reefman, Derk

AES Convention 110 · Paper 5396 · May 2001

Abstract

In this paper, an overview of Direct Stream Digital (DSD) signal processing is given. It is shown that 1-bit DSD signals can be dithered properly, so the resulting dithered DSD stream does not contain audible artifacts in a band from 0-100~kHz. It is also shown that signal processing can be done best in a high rate, multi-bit domain. Arguments are given that the minimal frequency span needed to comply with the human auditory system is roughly 0-300~kHz. Following the signal processing, final conversion to DSD is made. It is demonstrated that Super Audio CD (SACD) is a very efficient consumer format: it is the format which, while maintaining all necessary psycho-acoustical characteristics such has high band width, filtering with wide transition bands etc, uses the least bits from the disk; hence offering the longest playing time.

Details

Published in
AES Convention 110
AES Convention
110
Paper number
5396
Publication date
May 6, 2001
Session subject
Signal Processing for Audio
Affiliation
Audio Research Group, University of Waterloo, Ontario, Canada (See document for exact affiliation information.)
Type
Convention Paper