Coding of stereo signals

Details Coding of stereo signals Coding of stereo signals

2003-03-20

2008-10-14

Chin, Vivian (Department: 2615)

Data processing: speech signal processing, linguistics, language

Audio signal bandwidth compression or expansion

C381S016000, C381S023000, C381S019000, C381S022000, C704S504000, C704SE19005, C704S229000, C704S200100

Reexamination Certificate

active

07437299

ABSTRACT:
A method of encoding a multichannel signal, such as a stereophonic audio signal, including at least first and second signal components includes transforming at least the first and second signal components by a predetermined transformation into a principal signal including most of the signal energy and at least one residual signal including less energy than the principal signal. The predetermined transformation is parameterized by at least one transformation parameter. The method further includes representing the multichannel signal at least by the principal signal and the transformation parameter.

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Robert G. Van Der Waal, et al: Subband Coding of Stereophonic Digital Audio Signals, IEEE 1991 A1.8, pp. 3601-3604.

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