Title:
SIGNAL OUTPUT METHOD FOR LOW-FREQUENCY SUPPRESSION AND AMPLITUDE LIMITER
Document Type and Number:
WIPO Patent Application WO/2024/037374
Kind Code:
A1
Abstract:
A signal output method for low-frequency suppression and an amplitude limiter. A first filter performs filtering processing on input signals according to a current filtering parameter value to obtain output signals (S701); a signal selector selects from the input signals or output signals a target signal, and sends the target signal to a second filter (S702); a gain controller performs gain adjustment on a received external first audio signal, and sends an obtained second audio signal to the second filter (S703); the second filter performs filtering processing on a superimposed signal of the received target signal and second audio signal, and sends an obtained first signal to a signal processor (S704); the signal processor obtains a filtering parameter value of the first filter according to the first signal (S705), and sends the filtering parameter value to the first filter, so that the first filter accurately adjusts the input signals according to the filtering parameter value to obtain low-frequency output signals, thereby balancing the noise reduction function and the abnormal POP-noise problem of electronic devices according to the low-frequency output signals.
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Inventors:
XIONG WEI (CN)
PAAAHO JOUNI (CN)
CHANG QING (CN)
ZHANG JING (CN)
YUAN ZHONGXING (CN)
QIU CUNSHOU (CN)
TIAN LISHENG (CN)
PAAAHO JOUNI (CN)
CHANG QING (CN)
ZHANG JING (CN)
YUAN ZHONGXING (CN)
QIU CUNSHOU (CN)
TIAN LISHENG (CN)
Application Number:
PCT/CN2023/111593
Publication Date:
February 22, 2024
Filing Date:
August 07, 2023
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G10K11/178
Foreign References:
| CN110225429A | 2019-09-10 | |||
| CN102460566A | 2012-05-16 | |||
| CN110402463A | 2019-11-01 | |||
| CN112788466A | 2021-05-11 | |||
| CN113473294A | 2021-10-01 | |||
| CN113676803A | 2021-11-19 | |||
| CN114422901A | 2022-04-29 | |||
| US7317801B1 | 2008-01-08 |
Attorney, Agent or Firm:
TDIP & PARTNERS (CN)
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