Spatial metadata direction harmonization

Abstract

An apparatus comprising means for: obtaining, with respect to at least two sources within an audio scene, ordered directional metadata parameters associated with the at least two sources and identifying a direction-of-arrival with respect to the at least two sources and arranged in frames arranged as a grid of time-frequency tiles with respect to a time-axis and a frequency axis; determining an ordering error with respect to at least one time-frequency tile directional metadata parameter, the ordering error configured to identify that at least one neighbouring time-frequency tile directional metadata parameter associated with another order index is more similar and/or less different with respect to the at least one time-frequency tile directional metadata parameter than the at least one neighbouring time-frequency tile directional metadata parameter associated with the same order index; and reordering the determined at least one time-frequency tile directional metadata parameter to the another order index.