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  • Research Article
  • Open Access

Parametric Coding of Stereo Audio

  • 1Email author,
  • 1,
  • 1, 2 and
  • 3
EURASIP Journal on Advances in Signal Processing20052005:561917

  • Received: 27 January 2004
  • Published:


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 and phrases

  • parametric stereo
  • audio coding
  • perceptual audio coding
  • stereo coding

Authors’ Affiliations

Digital Signal Processing Group, Philips Research Laboratories, Eindhoven, 5656 AA, The Netherlands
Department of Technology Management, Eindhoven University of Technology, Eindhoven, 5656 AA, The Netherlands
Philips Digital Systems Laboratories, Eindhoven, 5616 LW, The Netherlands


© Jeroen Breebaart et al. 2005

This article is published under license to BioMed Central Ltd. 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.