DSD is a 1-bit coding scheme based upon sigma-delta modulation. In the commercial realization of this technology exploiting DVD optical disc storage, six discrete channels are accommodated each with a constant bit rate of 2.8224 Mb/s, a specification that cannot be changed within the context of the SACD release format. However, a method of embedding additional data in the DSD bitstream is shown to be feasible with the aim of increasing the number of channels to twelve. The technique retains full compatibility with SACD and only requires modest processing to decode an additional six channels.

Author: Hawksford, Malcolm J.
Affiliation: University of Essex, Department of Electronic Systems Engineering, Colchester, Essex, UK
AES Convention: 117 (October 2004) Paper Number: 6297
Publication Date: October 1, 2004 Import into BibTeX
Subject: High Resolution Audio
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=12954

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