Title:
AUDIO SIGNAL PROCESSING METHOD, AUDIO PROCESSING DEVICE, AND RECORDING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2021/212287
Kind Code:
A1
Abstract:
An audio signal processing method, an audio processing device, and a recording apparatus. The method comprises: acquiring an audio signal to be processed (S301), the audio signal comprising audio components of multiple frequencies; determining a corresponding sound source direction for each of the multiple audio components (S302); determining, according to the sound source directions, sound-reception response difference information corresponding to the respective audio components (S303), wherein the reception response difference information comprises an amplitude response difference and/or a phase response difference between a first sound reception device and a second sound reception device when responding to audio components of the same frequency transmitted from the same direction; and modulating, according to the sound-reception response difference information, the respective audio components of the corresponding frequencies in the audio signal, and generating a first audio signal to be played by the first sound reception device and a second audio signal to be played by the second sound reception device (S304). The audio signal processing method solves the technical problem in which audio recorded by existing recording apparatuses has poor stereo performance.
Inventors:
MO PINXI (CN)
BIAN YUNFENG (CN)
XUE ZHENG (CN)
LIU YANG (CN)
BIAN YUNFENG (CN)
XUE ZHENG (CN)
LIU YANG (CN)
Application Number:
PCT/CN2020/085719
Publication Date:
October 28, 2021
Filing Date:
April 20, 2020
Export Citation:
Assignee:
SZ DJI TECHNOLOGY CO LTD (CN)
International Classes:
H04S1/00; G06F3/16; G10L13/02
Foreign References:
| CN106973355A | 2017-07-21 | |||
| CN109410912A | 2019-03-01 | |||
| CN107889044A | 2018-04-06 | |||
| CN110972053A | 2020-04-07 | |||
| CN101155440A | 2008-04-02 | |||
| CN106797525A | 2017-05-31 | |||
| CN102456351A | 2012-05-16 | |||
| CN110082724A | 2019-08-02 | |||
| US20130343551A1 | 2013-12-26 |
Attorney, Agent or Firm:
BEIJING BESTIPR INTELLECTUAL PROPERTY LAW CORPORATION (CN)
Download PDF: