Apparatus and method for processing a multi-channel signal

Data processing: speech signal processing – linguistics – language – Speech signal processing – Psychoacoustic

Reexamination Certificate

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C704S219000

Reexamination Certificate

active

07340391

ABSTRACT:
An apparatus for processing a multi-channel signal includes a means for determining a similarity between a first one of two channels and a second one of the two channels. Furthermore, a means for performing a prediction filtering of the spectral coefficients is provided, which is formed to perform a prediction filtering with only a single prediction filter for both channels in case of high similarity between the first and the second channel, and to perform a prediction filtering with two separate prediction filters in case of a dissimilarity between the first and the second channel. With this, an introduction of stereo artifacts and a deterioration of the coding gain in stereo coding techniques are avoided.

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