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2005
Conference Paper
Titel
Spatial audio coding - status and recent advances in parametric multi-channel audio coding
Abstract
Spatial audio coding is the most recent parametric extension to waveform coding. This paper describes the ideas behind this technique, starting with a brief review of the basic concept of using parametric tools for waveform coder enhancement followed by a more detailed description of spatial audio coding, outlining its relation to existing schemes for reproduction of multi-channel audio via transmission of non-multi-channel material. Furthermore the evolution of traditional techniques for joint stereo coding towards spatial audio coding for multi channel audio will be summarized. The paper provides some performance data of this type of technology and describes first commercial applications. Ongoing activities of the ISO/MPEG standardization group in this field will be reported.