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Journal Article

Hierarchical Bandwidth Limitation of Surround Sound—Part II: Optimization of Bandwidth Allocation Strategy

Authors: Jiao, Yu; Zielinski, Slawomir; Rumsey, Francis

Journal of the Audio Engineering Society · Volume 57 · Issue 1/2 · pp. 5–15 · January 2009

Abstract

A technique for band limiting a multichannel surround sound, previously described, requires an optimization strategy based on subjective testing. In this technique, the 5 channels are transformed into a hierarchical domain where each transformed signal is assigned some percentage of the available bandwidth. Two cases with total bandwidth of 40 and 60 kHz were tested using a wide range of audio samples, and the resulting audio quality on a 100-point scale was rated at 87 and 93, respectively. This technique was superior to traditional bandwidth-limiting algorithms.

Details

Publication
Journal of the Audio Engineering Society
Volume
57
Issue
1/2
Pages
5–15
Publication date
January 6, 2009
Affiliation
Institute of Sound Recording, University of Surrey (See document for exact affiliation information.)
Type
Journal Article