Title:
SOUND QUALITY ADJUSTMENT METHOD AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/134466
Kind Code:
A1
Abstract:
The embodiments of the present invention relate to the field of audio signal processing, and disclosed thereby is a sound quality adjustment method, comprising: obtaining an audio signal to be adjusted; obtaining the resonance frequency and the frequency response curve of an exciter; forming a recursive filter, and determining filter parameters of the recursive filter according to the frequency response curve; inputting the audio signal to be adjusted into the recursive filter within a preset range of the resonance frequency to obtain an equalized signal; performing preset sound effect processing on the equalized signal to obtain a signal to be excited, wherein the preset sound effect processing at least comprises inputting the equalized signal into a non-recursive filter; and inputting the signal to be excited into the exciter so as to output an audio signal. Also provided by the present invention is a sound quality adjustment device. The sound quality adjustment method and device provided by the present invention may enhance the vibration reduction effect and improve the sound quality of a screen.
Inventors:
QIN YINGMING (CN)
XIE BING (CN)
XIANG ZHENG (CN)
XIE BING (CN)
XIANG ZHENG (CN)
Application Number:
PCT/CN2019/113336
Publication Date:
July 02, 2020
Filing Date:
October 25, 2019
Export Citation:
Assignee:
AAC ACOUSTIC TECH SHENZHEN CO LTD (CN)
AAC TECHNOLOGIES PTE LTD (SG)
AAC TECHNOLOGIES PTE LTD (SG)
International Classes:
G06F3/16; H03H7/01
Foreign References:
CN108415556A | 2018-08-17 | |||
CN108415556A | 2018-08-17 | |||
CN107734167A | 2018-02-23 | |||
CN108632708A | 2018-10-09 | |||
CN110018808A | 2019-07-16 | |||
US20090052695A1 | 2009-02-26 |
Attorney, Agent or Firm:
GUANGZHOU YUEXIU JILY PATENT & TRADEMARK LAW OFFICE (CN)
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