Title:
SOUND SOURCE TRACKING CONTROL METHOD AND CONTROL APPARATUS, AND SOUND SOURCE TRACKING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/168620
Kind Code:
A1
Abstract:
A sound source tracking control method and control apparatus (82), and a sound source tracking system. The sound source tracking control apparatus (82) extracts a first audio segment from first audio information acquired by a first audio acquisition circuit (F1, 811), and synchronously extracts a second audio segment from second audio information acquired by a second audio acquisition circuit (F2, 812) (101); determine, according to a deviation between preset peak values in the first audio segment and the second audio segment, a first time offset between the first audio segment and the second audio segment (102); determine, according to the first time offset, a first distance difference between a first distance from a sound source to the first audio acquisition circuit (F1, 811) and a second distance from the sound source to the second audio acquisition circuit (F2, 812) (103); determine a first offset angle of the sound source according to the first distance difference (104); and adjust a video acquisition direction of a video acquisition circuit (83) according to the first offset angle, so that the video acquisition circuit (83) is aligned with the sound source (105).
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Inventors:
WANG JIANTING (CN)
SHAO XIBIN (CN)
BU ZHANCHANG (CN)
MENG ZHIMING (CN)
LEI LIPING (CN)
SHI YANG (CN)
SUN YUANHUI (CN)
SHAO XIBIN (CN)
BU ZHANCHANG (CN)
MENG ZHIMING (CN)
LEI LIPING (CN)
SHI YANG (CN)
SUN YUANHUI (CN)
Application Number:
PCT/CN2020/076462
Publication Date:
September 02, 2021
Filing Date:
February 24, 2020
Export Citation:
Assignee:
BOE TECHNOLOGY GROUP CO LTD (CN)
BEIJING BOE DISPLAY TECH CO (CN)
BEIJING BOE DISPLAY TECH CO (CN)
International Classes:
G01S5/22
Foreign References:
| CN106842131A | 2017-06-13 | |||
| CN103797821A | 2014-05-14 | |||
| CN103841357A | 2014-06-04 | |||
| CN103235287A | 2013-08-07 | |||
| CN204517964U | 2015-07-29 | |||
| US6826284B1 | 2004-11-30 |
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
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