A single-chip DSP implementation of the Dolby ProLogic surround decoding algorithm is described. The algorithm is a variable matrix decoder which achieves improved localization over passive decoders by steering dominant audio information to its proper spatial location. Real-time performance is achieved through a number of simplifying algorithm rearrangements and through the use of a 24-bit DSP chip.
Authors:
Link, Brian; Mandell, Douglas
Affiliation:
Dolby Laboratories Inc., San Francisco, CA
AES Convention:
95 (October 1993)
Paper Number:
3758
Publication Date:
October 1, 1993
Subject:
DSP Theory and Applications
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