APPARATUS AND METHOD FOR ENCODING OR DECODING A MULTICHANNEL SIGNAL USING A REPEATED DISCRETISATION OF A SPECTRAL REGION Russian patent published in 2019 - IPC G10L19/08 G10L19/02 G10L19/22 G10L19/04 

FIELD: data processing.

SUBSTANCE: invention relates to means of encoding and decoding a multichannel signal. Sequence of blocks of sample values of said at least two channels is converted into a frequency domain representation having sequences of blocks of spectral values for said at least two channels. Sampling block has an associated sampling frequency, and a unit of spectral values from sequences of block of spectral values has spectral values up to a maximum input frequency which is related to an input sampling frequency. Combined multichannel processing is applied to sequences of blocks of spectral values or to sequences of units of spectral values subjected to repeated sampling to obtain at least one resultant sequence of blocks of spectral values containing information relating to said at least two channels.

EFFECT: encoding efficiency increase.

44 cl, 32 dwg