Title:
LOUDSPEAKER SYSTEM IDENTIFICATION METHOD AND APPARATUS THEREFOR, STORAGE MEDIUM, AND COMMUNICATION TERMINAL
Document Type and Number:
WIPO Patent Application WO/2021/248528
Kind Code:
A1
Abstract:
The present application provides a loudspeaker system identification method and an apparatus therefor, a storage medium and a communication terminal. Said method comprises: providing an amplified excitation signal to a loudspeaker system to be tested; measuring a voltage signal at both ends of the loudspeaker system and a current signal flowing through the loudspeaker system; inputting the voltage signal and the current signal to a first loudspeaker model and a second loudspeaker model; predicting the state of the speaker system on the basis of the first loudspeaker model; acquiring a linear parameter and a non-linear parameter of the loudspeaker system on the basis of the second loudspeaker model; determining, according to an error situation, whether to feed back the linear parameter and the non-linear parameter to the first loudspeaker model so as to update the first loudspeaker model; and predicting the state of the loudspeaker system on the basis of the first loudspeaker model. The present application adopts a dual-model structure, and can avoid problems such as excitation control failure or malfunction caused by inappropriate parameter estimation.
Inventors:
HUANG YUANFANG (CN)
LAN RUIZHI (CN)
YE LIJIAN (CN)
LAN RUIZHI (CN)
YE LIJIAN (CN)
Application Number:
PCT/CN2020/096694
Publication Date:
December 16, 2021
Filing Date:
June 18, 2020
Export Citation:
Assignee:
AAC ACOUSTIC TECH SHENZHEN CO LTD (CN)
AAC TECHNOLOGIES PTE LTD (SG)
AAC TECHNOLOGIES PTE LTD (SG)
International Classes:
H04R29/00
Foreign References:
| CN106068007A | 2016-11-02 | |||
| CN106851514A | 2017-06-13 | |||
| CN208540153U | 2019-02-22 | |||
| CN105745943A | 2016-07-06 | |||
| JP2014138209A | 2014-07-28 |
Attorney, Agent or Firm:
SHENZHEN CIPRUN INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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