This article is part of the series Anthropomorphic Processing of Audio and Speech.

Open Access Research Article

Parametric Coding of Stereo Audio

Jeroen Breebaart1*, Steven van de Par1, Armin Kohlrausch12 and Erik Schuijers3

Author Affiliations

1 Digital Signal Processing Group, Philips Research Laboratories, Eindhoven 5656 AA, The Netherlands

2 Department of Technology Management, Eindhoven University of Technology, Eindhoven 5656 AA, The Netherlands

3 Philips Digital Systems Laboratories, Eindhoven 5616 LW, The Netherlands

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EURASIP Journal on Advances in Signal Processing 2005, 2005:561917  doi:10.1155/ASP.2005.1305


The electronic version of this article is the complete one and can be found online at: http://asp.eurasipjournals.com/content/2005/9/561917


Received: 27 January 2004
Revisions received: 22 July 2004
Published: 21 June 2005

© 2005 Breebaart et al.

This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Parametric-stereo coding is a technique to efficiently code a stereo audio signal as a monaural signal plus a small amount of parametric overhead to describe the stereo image. The stereo properties are analyzed, encoded, and reinstated in a decoder according to spatial psychoacoustical principles. The monaural signal can be encoded using any (conventional) audio coder. Experiments show that the parameterized description of spatial properties enables a highly efficient, high-quality stereo audio representation.

Keywords:
parametric stereo; audio coding; perceptual audio coding; stereo coding

Research Article