FIELD: physics.
SUBSTANCE: invention relates to computer engineering for processing audio signals. Technical result is achieved due to the following stages: analysis of the spatial audio signal to determine the directions of arrival for one or more audio elements in the audio scene represented by the spatial audio signal; for at least one frequency sub-band of the spatial audio signal, determining corresponding signal strength indicators associated with the determined arrival directions; generation of metadata containing information on directions and information on energies, wherein the information on directions contains indicators of certain directions of arrival of one or more audio elements, and information on energies contains corresponding indicators of signal power associated with certain directions of arrival; generating a channel-based audio signal with a predetermined number of channels based on the spatial audio signal; and outputting, in the form of a compressed representation of the spatial audio signal, based on the audio signal and metadata channels.
EFFECT: reduced requirements for bandwidth or data storages when transmitting or storing spatial audio signals.
20 cl, 16 dwg
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