CN111989934A - 回声消除装置、回声消除方法、信号处理芯片及电子设备 - Google Patents

回声消除装置、回声消除方法、信号处理芯片及电子设备 Download PDF

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Publication number
CN111989934A
CN111989934A CN201980000673.8A CN201980000673A CN111989934A CN 111989934 A CN111989934 A CN 111989934A CN 201980000673 A CN201980000673 A CN 201980000673A CN 111989934 A CN111989934 A CN 111989934A
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China
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voice signal
digital voice
update
detection module
signal
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CN201980000673.8A
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CN111989934B (zh
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韩文凯
王鑫山
李国梁
郭红敬
朱虎
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Shenzhen Goodix Technology Co Ltd
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Shenzhen Goodix Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
    • H04M9/082—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic using echo cancellers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/02—Circuits for transducers, loudspeakers or microphones for preventing acoustic reaction, i.e. acoustic oscillatory feedback

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Telephone Function (AREA)

Abstract

一种回声消除装置、回声消除方法、信号处理芯片及电子设备，回声消除装置包括：语音端点检测模块(106)，用于检测近端数字语音信号中是否存在实际的回声数字语音信号；双端通话检测模块(108)，用于根据所述语音端点检测模块的检测结果决定是否启动，并在启动后检测双端通话概率以控制滤波器系数的更新；自适应滤波器(110)，用于根据所述滤波器系数以及远端数字语音信号生成估计的回声数字语音信号，以消除所述近端数字语音信号中所述实际的回声数字语音信号。回声消除装置中，自适应滤波器估计的回声数字语音信号比如和加法器输出的误差数字语音信号反馈回去控制双端通话检测模块检测双端通话概率，使得双端通话模块和自适应滤波器的相互制约，从而解决了自适应滤波算法中稳态失调量和收敛速度之间的矛盾，提高了双端通话检测模块的检测精度和滤波器的收敛性能。

Description

PCT国内申请，说明书已公开。

Claims (20)

  1. PCT国内申请，权利要求书已公开。
CN201980000673.8A 2019-03-22 2019-03-22 回声消除装置、回声消除方法、信号处理芯片及电子设备 Active CN111989934B (zh)

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PCT/CN2019/079174 WO2020191512A1 (zh) 2019-03-22 2019-03-22 回声消除装置、回声消除方法、信号处理芯片及电子设备

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113345457A (zh) * 2021-06-01 2021-09-03 广西大学 一种基于贝叶斯理论的声学回声消除自适应滤波器及滤波方法
CN114650340A (zh) * 2022-04-21 2022-06-21 深圳市中科蓝讯科技股份有限公司 一种回声消除方法、装置及电子设备

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1822709A (zh) * 2006-03-24 2006-08-23 北京中星微电子有限公司 一种麦克风回声消除系统
US9767828B1 (en) * 2012-06-27 2017-09-19 Amazon Technologies, Inc. Acoustic echo cancellation using visual cues
CN109348072A (zh) * 2018-08-30 2019-02-15 湖北工业大学 一种应用于回声抵消系统的双端通话检测方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1822709A (zh) * 2006-03-24 2006-08-23 北京中星微电子有限公司 一种麦克风回声消除系统
US9767828B1 (en) * 2012-06-27 2017-09-19 Amazon Technologies, Inc. Acoustic echo cancellation using visual cues
CN109348072A (zh) * 2018-08-30 2019-02-15 湖北工业大学 一种应用于回声抵消系统的双端通话检测方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113345457A (zh) * 2021-06-01 2021-09-03 广西大学 一种基于贝叶斯理论的声学回声消除自适应滤波器及滤波方法
CN114650340A (zh) * 2022-04-21 2022-06-21 深圳市中科蓝讯科技股份有限公司 一种回声消除方法、装置及电子设备

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CN111989934B (zh) 2022-03-04

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