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Conference Paper

Improved Lossless Coding of 1-Bit Audio Signals

Authors: Breukers, Fons; Oomen, Werner; van der Vleuten, René; van der Kerkhof, Leon

AES Conference: UK 14th Conference: Audio - The Second Century · Paper ASC-14 · June 1999

Abstract

A new recording method for audio signals, employing 1-bit oversampling sigma-delta modulation (bit-stream or DSD), has recently been proposed. To reduce the required storage capacity, a lossless coding scheme as described in [1] can be applied. This scheme results in a lossless coding gain, which varies on a frame basis, thus implying a variable bit rate. In some applications, it is important to have a constant bit rate and consequently buffering is required. In this paper, methods are presented for doing this. Furthermore, alternative lossless coding schemes employing adaptive or linear prediction and 'arithmetic coding' are presented. It is demonstrated that at the expense of coder complexity, the coding gain can be drastically improved.

Details

Published in
AES Conference: UK 14th Conference: Audio - The Second Century
Paper number
ASC-14
Publication date
June 6, 1999
Session subject
Audio - The Second Century
Affiliation
Philips Research, Eindhoven, The Netherlands ; Philips Consumer Electronics, Eindhoven, The Netherlands (See document for exact affiliation information.)
Type
Conference Paper