The MPEG-4 standard provides a complete framework for hybrid coding of natural and structured sound information that permits the description of complete spatial environments by a low amount of data. A new platform, based on a virtual DSP, has been developed to optimize the MPEG decoding and pre-processing interface to feed an array of loudspeakers rendering spatial Audio by Wave Field Synthesis. The virtual DSP has an instruction set adapted to MPEG-4 advanced audio features on superscalar processors.

Authors: Zoia, Giorgio; Alberti, Claudio
Affiliation: Integrated Systems Laboratory, EPFL, Lausanne, Switzerland
AES Conference: 19th International Conference: Surround Sound - Techniques, Technology, and Perception (June 2001)
Paper Number: 1900
Publication Date: June 1, 2001
Subject: Surround Sound

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