This paper presents a new paradigm for spatial audio teleconferencing that exploits the corpuscular nature of general audio parametric coding for low bit-rate audio compression. The paradigm consists of several processing tools. The spatial aspect is enacted by a dynamic rendition tool that optimizes placement of speech sources within the soundscape; the temporal aspects of a phoneme protection tool misalign corruptive and vulnerable speech elements in a multitalking environment. A novel means of echo suppression eliminates the need for adaptive filtering and real-time echo cancellation, which is difficult for multichannel audio.

Authors: James, B. St.; Hawksford, M. O. J.
Affiliation: Department of Computing and Electronic Systems, University of Essex, Colchester, CO4 3SQ, UK
JAES Volume 56 Issue 10 pp. 823-843; October 2008
Publication Date: November 10, 2008

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