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Convention Paper

Controlled Subjective Assessments of 2-to-5-Channel Surround Sound Processing Algorithms

Authors: Rumsey, Francis

AES Convention 104 · Paper 4654 · May 1998

Abstract

'Surround synthesis' algorithms are designed to process ordinary 2-channel stereo signals for reproduction over a larger number of loudspeakers, delivering enhanced spatial characteristics. A series of controlled subjective tests was carried out to determine the front imaging and spatial impression qualities of processed material, using conventional unmatrixed 2-channel program material as a source. Compatibility with the 2-channel original was assessed and listener preference was established. Results suggest that in general the front image quality is reduced and the spatial impression slightly improved by processing, and that expert listeners tend to prefer unprocessed material to that which has been processed.

Details

Published in
AES Convention 104
AES Convention
104
Paper number
4654
Publication date
May 6, 1998
Session subject
Multichannel Sound Systems
Affiliation
University of Surrey, Guildford, UK (See document for exact affiliation information.)
Type
Convention Paper