Parametric coding of stereo audio

  • Authors:
  • Jeroen Breebaart;Steven van de Par;Armin Kohlrausch;Erik Schuijers

  • Affiliations:
  • Digital Signal Processing Group, Philips Research Laboratories, Eindhoven, The Netherlands;Digital Signal Processing Group, Philips Research Laboratories, Eindhoven, The Netherlands;Digital Signal Processing Group, Philips Research Laboratories, Eindhoven, The Netherlands and Department of Technology Management, Eindhoven University of Technology, Eindhoven, The Netherlands;Philips Digital Systems Laboratories, Eindhoven, The Netherlands

  • Venue:
  • EURASIP Journal on Applied Signal Processing
  • Year:
  • 2005

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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.