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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

https://doi.org/10.1155/ASP.2005.1305

  • Received: 27 January 2004
  • Published:

Abstract

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

(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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