Title:
SOUND PICKUP ARRAY, SOUND PICKUP DEVICE, AND SOUND PICKUP PERFORMANCE OPTIMIZATION METHOD
Document Type and Number:
WIPO Patent Application WO/2021/093761
Kind Code:
A1
Abstract:
The present application discloses a sound pickup array, a sound pickup device, and a sound pickup performance optimization method. The sound pickup array comprises a plurality of sound pickups. Each of the sound pickups comprises a forward sound channel for picking up sound in a first direction, and a backward sound channel for picking up sound in a second direction opposite to the first direction. The plurality of sound pickups are arranged such that first directions indicated by forward sound channels of the respective sound pickups are convergent. The placement of the sound pickups in the sound pickup array can be adjusted to reduce the distances between diaphragms of the sound pickups, thus extending the high-frequency cut-off frequency of the sound pickup array, and improving the directivity (such as the high-frequency resolution) of the sound pickup array.
Inventors:
LI XINGUO (CN)
FENG JINWEI (CN)
TAN GUOQING (CN)
DU BINGCONG (CN)
HUANG WEILONG (CN)
FENG JINWEI (CN)
TAN GUOQING (CN)
DU BINGCONG (CN)
HUANG WEILONG (CN)
Application Number:
PCT/CN2020/128058
Publication Date:
May 20, 2021
Filing Date:
November 11, 2020
Export Citation:
Assignee:
ALIBABA GROUP HOLDING LTD (CN)
International Classes:
H04R19/01; H04R3/00
Foreign References:
| CN2414574Y | 2001-01-10 | |||
| CN101444107A | 2009-05-27 | |||
| CN103561367A | 2014-02-05 | |||
| US20150055796A1 | 2015-02-26 |
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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