Title:
METHOD AND DEVICE FOR DETERMINING STATE OF ECHO SOUND FIELD, STORAGE MEDIUM, AND TERMINAL
Document Type and Number:
WIPO Patent Application WO/2021/190274
Kind Code:
A1
Abstract:
A method and device for determining a state of an echo sound field, a storage medium, and a terminal. The method comprises: acquiring a signal to be determined; determining a remote signal Xn(k), a proximal signal Dn(k), and a filter coefficient Wn(k) of said signal; determining a filter update degree Cefupdate at least on the basis of the remote signal Xn(k), of the proximal signal Dn(k), and of the filter coefficient Wn(k); and determining, at least on the basis of the filter update degree Cefupdate being greater than an update degree threshold Thrdupdate, whether an echo sound field state of said signal is an echo path change state. The present invention effectively increases the accuracy of an echo path change state determination, provides an opportunity to employ more parameters in determining more echo sound field states, effectively implements multifeatured detection, and increases the comprehensiveness of an echo sound field state determination.
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Inventors:
YE SHUNZHOU (CN)
Application Number:
PCT/CN2021/079181
Publication Date:
September 30, 2021
Filing Date:
March 05, 2021
Export Citation:
Assignee:
UNISOC CHONGQING TECH CO LTD (CN)
International Classes:
H04M7/00; G10L21/0208
Foreign References:
| CN111654585A | 2020-09-11 | |||
| CN109348072A | 2019-02-15 | |||
| CN109524018A | 2019-03-26 | |||
| CN108986837A | 2018-12-11 | |||
| CN109712636A | 2019-05-03 | |||
| US20160006880A1 | 2016-01-07 |
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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