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Parametric Coding of Stereo Audio

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.

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Correspondence to Jeroen Breebaart.

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Open Access This article is distributed under the terms of the Creative Commons Attribution 2.0 International License ( https://creativecommons.org/licenses/by/2.0 ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Breebaart, J., van de Par, S., Kohlrausch, A. et al. Parametric Coding of Stereo Audio. EURASIP J. Adv. Signal Process. 2005, 561917 (2005). https://doi.org/10.1155/ASP.2005.1305

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Keywords and phrases

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