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Convention Paper

Subjective Evaluation of the Immersive Sound Field Rendition System and Recent Enhancements

Authors: Dubey, Chandresh; Annadana, Raghuram; Sinha, Deepen; Ferreira, Anibal

AES Convention 123 · Paper 7222 · October 2007

Abstract

Consumer audio applications such as satellite radio broadcasts, multi-channel audio streaming and playback systems coupled with the need to meet stringent bandwidth requirements are eliciting newer challenges in parametric multi-channel audio coding schemes. This paper describes the continuation of our research concerning the Immersive Soundfield Rendition (ISR) system. In particular we present detailed subjective result data benchmarking the ISR system in comparison to MPEG Surround and also characterizing the audio quality level at different sub-modes of the system. We also describe enhancements to various algorithmic components in particular the blind 2-to-5 channel upmixing algorithm and describe a novel scheme for providing enhanced stereo downmix at the receiver for improved decoding by conventional matrix decoding systems.

Details

Published in
AES Convention 123
AES Convention
123
Paper number
7222
Publication date
October 6, 2007
Session subject
Audio Coding
Affiliation
ATC Labs; University of Porto/ATC Labs (See document for exact affiliation information.)
Type
Convention Paper