DOWNMIXER, AUDIO ENCODER, METHOD AND COMPUTER PROGRAM APPLYING PHASE VALUE TO ABSOLUTE VALUE Russian patent published in 2022 - IPC H04S3/00 G10L19/08 

FIELD: downmix signal providing.

SUBSTANCE: inventions group relates to a downmixer, an audio encoder and methods for providing a downmix signal based on a plurality of input signals. The downmixer for providing the downmix signal based on the plurality of input signals is configured to determine the magnitude value of the value in the spectral domain of the downmix signal based on the loudness information of the input signals. The downmixer is configured to determine the phase value of the value in the spectral domain of the downmix signal, and the downmixer is configured to apply the phase value to obtain a complex-valued representation of the numbers of the value in the spectral domain of the downmix signal based on the absolute magnitude value of the value in the spectral domain of the downmix signal . The audio encoder uses such a downmixer. A method for downmixing and a computer-readable storage medium are also described.

EFFECT: providing a downmixing method that improves sound quality while reducing computational complexity.

44 cl, 11 dwg