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Open Access

Parametric Coding of Stereo Audio

  • Jeroen Breebaart1Email author,
  • Steven van de Par1,
  • Armin Kohlrausch1, 2 and
  • Erik Schuijers3
EURASIP Journal on Advances in Signal Processing20052005:561917

Received: 27 January 2004

Published: 21 June 2005


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 stereoaudio codingperceptual audio codingstereo coding

Authors’ Affiliations

Digital Signal Processing Group, Philips Research Laboratories, Eindhoven, The Netherlands
Department of Technology Management, Eindhoven University of Technology, Eindhoven, The Netherlands
Philips Digital Systems Laboratories, Eindhoven, 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.