Stability of the synthesis filter in stereo linear prediction

A. Biswas, T.P.J. Selten, A.C. Brinker, den

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Abstract

A scheme for stereo audio coding is proposed consisting of a 2-channel linear prediction stage in combination with a single rotator. It is argued that it combines different attractive features of existing stereo coding mechanisms. It is experimentally shown that for unequal orders of auto- and cross-predictors, the stability of the synthesis system cannot always be guaranteed. For equal orders, the Block-Levinson algorithm is applicable, which is the basis for the proof of the stability of the synthesis filter. It is shown that the forward and the backward error signal vectors appearing in a 2-channel lattice filter implementation are coupled via a 2-channel allpass filter. This latter finding can be used as the basis for an alternative proof of the stability of the synthesis system.
Original languageEnglish
Title of host publicationProceedings of the 15th ProRISC, Annual Workshop on Circuits, Systems and Signal Processing (ProRISC 2004) 25 - 26 November 2004, Veldhoven, the Netherlands
Place of PublicationUtrecht, the Netherlands
PublisherSTW Technology Foundation
Pages230-237
ISBN (Print)90-73461-43-X
Publication statusPublished - 2004
Event2004 Annual Workshop on Circuits, Systems and Signal Processing (ProRISC 2004) - Veldhoven, Netherlands
Duration: 25 Nov 200426 Nov 2004

Conference

Conference2004 Annual Workshop on Circuits, Systems and Signal Processing (ProRISC 2004)
Abbreviated titleProRISC 2004
CountryNetherlands
CityVeldhoven
Period25/11/0426/11/04

Cite this

Biswas, A., Selten, T. P. J., & Brinker, den, A. C. (2004). Stability of the synthesis filter in stereo linear prediction. In Proceedings of the 15th ProRISC, Annual Workshop on Circuits, Systems and Signal Processing (ProRISC 2004) 25 - 26 November 2004, Veldhoven, the Netherlands (pp. 230-237). STW Technology Foundation.