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.
This article is part of the series Anthropomorphic Processing of Audio and Speech.
Parametric Coding of Stereo Audio
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
EURASIP Journal on Advances in Signal Processing 2005, 2005:561917 doi:10.1155/ASP.2005.1305
The electronic version of this article is the complete one and can be found online at: http://asp.eurasipjournals.com/content/2005/9/561917
Received: | 27 January 2004 |
Revisions received: | 22 July 2004 |
Published: | 21 June 2005 |
© 2005 Breebaart et al.
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