公开(公告)号：US20230421978A1

公开(公告)日：2023-12-28

申请号：US18460861

申请日：2023-09-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuan Gao ,  Shuai Liu ,  Bin Wang ,  Zhe Wang ,  Tianshu Qu ,  Jiahao Xu

IPC: H04S7/00

CPC classification number: H04S7/30 ,  H04S2420/11

Abstract: A method for obtaining a higher-order ambisonics (HOA) coefficient includes obtaining location information of a virtual speaker on a preset spherical surface, where the preset spherical surface includes M circles of longitude and N circles of latitude, and obtaining, based on the location information and a preset reference trigonometric function table, a trigonometric function value corresponding to the location information, where the reference trigonometric function table includes an elevation trigonometric function table and/or an azimuth trigonometric function table, and obtaining an HOA coefficient for the virtual speaker based on the trigonometric function value corresponding to the location information.