Patent ID: 11902769
Assignee: DOLBY INTERNATIONAL AB
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A method of processing audio content including directivity information for at least one sound source, the directivity information comprising a first set of first directivity unit vectors representing directivity directions and associated first directivity gains, the method comprising:
determining, as a count number, a number of unit vectors for arrangement on a surface of a 3D sphere, wherein the number of unit vectors relates to a desired representation accuracy;
generating a second set of second directivity unit vectors by using a predetermined arrangement algorithm to distribute the determined number of unit vectors on the surface of the 3D sphere, wherein the predetermined arrangement algorithm is an algorithm for approximately uniform spherical distribution of the unit vectors on the surface of the 3D sphere; and
determining, for the second directivity unit vectors, associated second directivity gains based on the first directivity gains of one or more among a group of first directivity unit vectors that are closest to the respective second directivity unit vector.