METHODS AND DEVICES FOR CODING AND/OR DECODING DIVING AUDIO SIGNALS Russian patent published in 2023 - IPC G10L19/16 G10L19/08 G10L19/18 

FIELD: audio signal coding means.

SUBSTANCE: plurality of channel downmix signals are determined from the multichannel input ambiophonic signal. Energy multiplexing of a plurality of downmix channel signals is performed to obtain a plurality of compressed channel signals. The audio recovery metadata is determined based on the plurality of compressed channel signals and based on the multi-channel input ambiophonic signal. In this case, the audio restoration metadata enables the recipient device to upmix multiple compressed channel signals into an approximation of a multi-channel input ambiophonic signal. A plurality of compressed channel signals and audio reconstruction metadata are encoded.

EFFECT: increased efficiency of audio coding.

8 cl, 8 dwg