Gram-Schmidt-based downmixer and decorrelator in the MPEG Surround coding

Der Pei Chen*, Hsu-Feng Hsiao, Han Wen Hsu, Chi Min Liu

*Corresponding author for this work

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

2 Scopus citations

Abstract

MPEG Surround (MPS) coding is an efficient method for multichannel audio coding. In an MPS encoder, downmixing from multichannel signals into a less number of channels is an efficient way to achieve high compression rate. In decoder, an upmixing module combining with the decorrelator is the key module to reconstruct the multichannel signals. This paper considers the design of the downmixer and the decorrelator with the assistance of the Gram-Schmidt orthogonal process. The performance of the proposed downmixer and decorrelator is verified through objective and subjective quality measure.

Original languageEnglish
Title of host publication128th Audio Engineering Society Convention 2010
Pages1945-1951
Number of pages7
StatePublished - 1 Dec 2010
Event128th Audio Engineering Society Convention 2010 - London, United Kingdom
Duration: 22 May 201025 May 2010

Publication series

Name128th Audio Engineering Society Convention 2010
Volume3

Conference

Conference128th Audio Engineering Society Convention 2010
CountryUnited Kingdom
CityLondon
Period22/05/1025/05/10

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