AUDIO ENCODING DEVICE AND METHOD Russian patent published in 2024 - IPC G10L19/08 H04N21/233 H04N21/235 H04S7/00 

FIELD: physics.

SUBSTANCE: invention relates to a method and a device for encoding audio and, in particular, for encoding audio for dynamic applications, such as virtual reality applications. Disclosed method is implemented by an audio encoding device, which comprises audio receiver (201) receiving audio elements representing an audio scene, and metadata receiver (203) receiving input presentation metadata for audio elements describing presentation constraints for transformation for reproduction of audio elements. Presentation constraints constrain a transformation parameter for reproduction, which can be adapted during transformation for reproduction of audio elements. Audio encoder (205) generates encoded audio data for an audio scene by encoding a plurality of audio elements, wherein the encoding is adapted in response to input presentation metadata. Metadata schema (207) generates output presentation metadata from the input presentation metadata. Output metadata of the presentation contain data for encoded audio elements, which limit the amount by which an adaptable transformation parameter for reproduction can be adapted during transformation for reproduction of encoded audio elements. Output (209) generates a stream of encoded audio data containing encoded audio data and output metadata presentation.

EFFECT: enabling improved and/or more flexible encoding in many scenarios, generating a stream of encoded audio data, which provides an improved ratio of quality to data transmission rate.

13 cl, 3 dwg