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

Claim 11:
12. A method of decoding audio content including directivity information for at least one sound source, the directivity information comprising a number that indicates a number of approximately uniformly distributed unit vectors on a surface of a 3D sphere, and, for each such unit vector, an associated directivity gain, wherein the unit vectors are assumed to be distributed on the surface of the 3D sphere by a predetermined arrangement algorithm, wherein the predetermined arrangement algorithm is an algorithm for approximately uniform spherical distribution of the unit vectors on the surface of the 3D sphere, the method comprising:
receiving a bitstream including the audio content;
extracting the number and the directivity gains from the bitstream; and
generating a set of directivity unit vectors by using the predetermined arrangement algorithm to distribute the number of unit vectors on the surface of the 3D sphere.