MULTICHANNEL AUDIO DECODER, MULTICHANNEL AUDIO ENCODER, METHOD AND COMPUTER PROGRAM USING RESIDUAL SIGNAL-BASED ADJUSTMENT OF DECORRELATION SIGNAL CONTRIBUTION

摘要

To provide an efficient encoding of a multichannel audio signal.SOLUTION: A multi-channel audio encoder 100 obtains a downmix signal based on the multi-channel audio signals and provides a parameter and a residual signal which describes dependence between channels of the multi-channel audio signals. The multi-channel audio encoder performs residual signal processing which changes the amount of the residual signal included in the encoded representation according to the multi-channel audio signals.SELECTED DRAWING: Figure 1