CN106575511B - 用于估计背景噪声的方法和背景噪声估计器 - Google Patents

用于估计背景噪声的方法和背景噪声估计器 Download PDF

Info

Publication number
CN106575511B
CN106575511B CN201580040591.8A CN201580040591A CN106575511B CN 106575511 B CN106575511 B CN 106575511B CN 201580040591 A CN201580040591 A CN 201580040591A CN 106575511 B CN106575511 B CN 106575511B
Authority
CN
China
Prior art keywords
audio signal
linear prediction
background noise
signal segment
estimate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201580040591.8A
Other languages
English (en)
Chinese (zh)
Other versions
CN106575511A (zh
Inventor
马丁·绍尔斯戴德
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Priority to CN202110082923.6A priority Critical patent/CN112927725B/zh
Priority to CN202110082903.9A priority patent/CN112927724B/zh
Publication of CN106575511A publication Critical patent/CN106575511A/zh
Application granted granted Critical
Publication of CN106575511B publication Critical patent/CN106575511B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/0204—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders using subband decomposition
    • G10L19/0208—Subband vocoders
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/78—Detection of presence or absence of voice signals
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/012—Comfort noise or silence coding
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208—Noise filtering
    • G10L21/0216—Noise filtering characterised by the method used for estimating noise
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0316—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude
    • G10L21/0324—Details of processing therefor
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
    • G10L21/0388—Details of processing therefor
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/12—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being prediction coefficients
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Computational Linguistics (AREA)
  • Quality & Reliability (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Noise Elimination (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
CN201580040591.8A 2014-07-29 2015-07-01 用于估计背景噪声的方法和背景噪声估计器 Active CN106575511B (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202110082923.6A CN112927725B (zh) 2014-07-29 2015-07-01 用于估计背景噪声的方法和背景噪声估计器
CN202110082903.9A CN112927724B (zh) 2014-07-29 2015-07-01 用于估计背景噪声的方法和背景噪声估计器

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201462030121P 2014-07-29 2014-07-29
US62/030,121 2014-07-29
PCT/SE2015/050770 WO2016018186A1 (en) 2014-07-29 2015-07-01 Estimation of background noise in audio signals

Related Child Applications (2)

Application Number Title Priority Date Filing Date
CN202110082903.9A Division CN112927724B (zh) 2014-07-29 2015-07-01 用于估计背景噪声的方法和背景噪声估计器
CN202110082923.6A Division CN112927725B (zh) 2014-07-29 2015-07-01 用于估计背景噪声的方法和背景噪声估计器

Publications (2)

Publication Number Publication Date
CN106575511A CN106575511A (zh) 2017-04-19
CN106575511B true CN106575511B (zh) 2021-02-23

Family

ID=53682771

Family Applications (3)

Application Number Title Priority Date Filing Date
CN201580040591.8A Active CN106575511B (zh) 2014-07-29 2015-07-01 用于估计背景噪声的方法和背景噪声估计器
CN202110082923.6A Active CN112927725B (zh) 2014-07-29 2015-07-01 用于估计背景噪声的方法和背景噪声估计器
CN202110082903.9A Active CN112927724B (zh) 2014-07-29 2015-07-01 用于估计背景噪声的方法和背景噪声估计器

Family Applications After (2)

Application Number Title Priority Date Filing Date
CN202110082923.6A Active CN112927725B (zh) 2014-07-29 2015-07-01 用于估计背景噪声的方法和背景噪声估计器
CN202110082903.9A Active CN112927724B (zh) 2014-07-29 2015-07-01 用于估计背景噪声的方法和背景噪声估计器

Country Status (19)

Country Link
US (6) US9870780B2 (enExample)
EP (3) EP3175458B1 (enExample)
JP (3) JP6208377B2 (enExample)
KR (3) KR102267986B1 (enExample)
CN (3) CN106575511B (enExample)
BR (1) BR112017001643B1 (enExample)
CA (1) CA2956531C (enExample)
DK (1) DK3582221T3 (enExample)
ES (3) ES2869141T3 (enExample)
HU (1) HUE037050T2 (enExample)
MX (3) MX385944B (enExample)
MY (1) MY178131A (enExample)
NZ (1) NZ728080A (enExample)
PH (1) PH12017500031A1 (enExample)
PL (2) PL3309784T3 (enExample)
PT (1) PT3309784T (enExample)
RU (3) RU2665916C2 (enExample)
WO (1) WO2016018186A1 (enExample)
ZA (2) ZA201708141B (enExample)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL3084763T3 (pl) 2013-12-19 2019-03-29 Telefonaktiebolaget Lm Ericsson (Publ) Szacowanie szumów tła w sygnałach audio
CN105261375B (zh) * 2014-07-18 2018-08-31 中兴通讯股份有限公司 激活音检测的方法及装置
EP3175458B1 (en) 2014-07-29 2017-12-27 Telefonaktiebolaget LM Ericsson (publ) Estimation of background noise in audio signals
KR102446392B1 (ko) * 2015-09-23 2022-09-23 삼성전자주식회사 음성 인식이 가능한 전자 장치 및 방법
CN105897455A (zh) * 2015-11-16 2016-08-24 乐视云计算有限公司 用于检测功能管理配置服务器运营的方法、合法客户端、cdn节点及系统
DE102018206689A1 (de) * 2018-04-30 2019-10-31 Sivantos Pte. Ltd. Verfahren zur Rauschunterdrückung in einem Audiosignal
US10991379B2 (en) * 2018-06-22 2021-04-27 Babblelabs Llc Data driven audio enhancement
CN110110437B (zh) * 2019-05-07 2023-08-29 中汽研（天津）汽车工程研究院有限公司 一种基于相关区间不确定性理论的汽车高频噪声预测方法
CN111554314B (zh) * 2020-05-15 2024-08-16 腾讯科技（深圳）有限公司 噪声检测方法、装置、终端及存储介质
CN111863016B (zh) * 2020-06-15 2022-09-02 云南国土资源职业学院 一种天文时序信号的噪声估计方法
CN113539283B (zh) * 2020-12-03 2024-07-16 腾讯科技（深圳）有限公司 基于人工智能的音频处理方法、装置、电子设备及存储介质

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5297213A (en) * 1992-04-06 1994-03-22 Holden Thomas W System and method for reducing noise
WO1997022117A1 (en) * 1995-12-12 1997-06-19 Nokia Mobile Phones Limited Method and device for voice activity detection and a communication device
KR20030034260A (ko) * 2001-08-07 2003-05-09 한국전자통신연구원 이동 통신 시스템의 음성 활성도 측정 장치 및 그 방법
US20030135367A1 (en) * 2002-01-04 2003-07-17 Broadcom Corporation Efficient excitation quantization in noise feedback coding with general noise shaping
US20050143978A1 (en) * 2001-12-05 2005-06-30 France Telecom Speech detection system in an audio signal in noisy surrounding
US7065486B1 (en) * 2002-04-11 2006-06-20 Mindspeed Technologies, Inc. Linear prediction based noise suppression
CN101080766A (zh) * 2004-11-03 2007-11-28 声学技术公司 使用bark频带weiner滤波器和线性衰减的噪声降低和舒适噪声增益控制
US20100188092A1 (en) * 2009-01-28 2010-07-29 Yazaki Corporation Voltage-detection component and a substrate having the same
US20110035213A1 (en) * 2007-06-22 2011-02-10 Vladimir Malenovsky Method and Device for Sound Activity Detection and Sound Signal Classification
US20110119067A1 (en) * 2008-07-14 2011-05-19 Electronics And Telecommunications Research Institute Apparatus for signal state decision of audio signal
CN103440871A (zh) * 2013-08-21 2013-12-11 大连理工大学 一种语音中瞬态噪声抑制的方法

Family Cites Families (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1257065B (it) * 1992-07-31 1996-01-05 Sip Codificatore a basso ritardo per segnali audio, utilizzante tecniche di analisi per sintesi.
JP3685812B2 (ja) * 1993-06-29 2005-08-24 ソニー株式会社 音声信号送受信装置
FR2715784B1 (fr) * 1994-02-02 1996-03-29 Jacques Prado Procédé et dispositif d'analyse d'un signal de retour et annuleur d'écho adaptatif en comportant application.
FR2720850B1 (fr) * 1994-06-03 1996-08-14 Matra Communication Procédé de codage de parole à prédiction linéaire.
US5742734A (en) * 1994-08-10 1998-04-21 Qualcomm Incorporated Encoding rate selection in a variable rate vocoder
US5659622A (en) * 1995-11-13 1997-08-19 Motorola, Inc. Method and apparatus for suppressing noise in a communication system
US6782361B1 (en) * 1999-06-18 2004-08-24 Mcgill University Method and apparatus for providing background acoustic noise during a discontinued/reduced rate transmission mode of a voice transmission system
US6691082B1 (en) * 1999-08-03 2004-02-10 Lucent Technologies Inc Method and system for sub-band hybrid coding
JP2001236085A (ja) * 2000-02-25 2001-08-31 Matsushita Electric Ind Co Ltd 音声区間検出装置、定常雑音区間検出装置、非定常雑音区間検出装置、及び雑音区間検出装置
US7254532B2 (en) * 2000-04-28 2007-08-07 Deutsche Telekom Ag Method for making a voice activity decision
DE10026872A1 (de) * 2000-04-28 2001-10-31 Deutsche Telekom Ag Verfahren zur Berechnung einer Sprachaktivitätsentscheidung (Voice Activity Detector)
US7136810B2 (en) * 2000-05-22 2006-11-14 Texas Instruments Incorporated Wideband speech coding system and method
US6691085B1 (en) * 2000-10-18 2004-02-10 Nokia Mobile Phones Ltd. Method and system for estimating artificial high band signal in speech codec using voice activity information
JP2002258897A (ja) * 2001-02-27 2002-09-11 Fujitsu Ltd 雑音抑圧装置
CA2454296A1 (en) * 2003-12-29 2005-06-29 Nokia Corporation Method and device for speech enhancement in the presence of background noise
JP4551817B2 (ja) * 2005-05-20 2010-09-29 Ｏｋｉセミコンダクタ株式会社 ノイズレベル推定方法及びその装置
US20070078645A1 (en) * 2005-09-30 2007-04-05 Nokia Corporation Filterbank-based processing of speech signals
RU2317595C1 (ru) * 2006-10-30 2008-02-20 ГОУ ВПО "Белгородский государственный университет" Способ обнаружения пауз в речевых сигналах и устройство его реализующее
RU2417459C2 (ru) * 2006-11-15 2011-04-27 ЭлДжи ЭЛЕКТРОНИКС ИНК. Способ и устройство для декодирования аудиосигнала
RU2469419C2 (ru) * 2007-03-05 2012-12-10 Телефонактиеболагет Лм Эрикссон (Пабл) Способ и устройство для управления сглаживанием стационарного фонового шума
US8489396B2 (en) * 2007-07-25 2013-07-16 Qnx Software Systems Limited Noise reduction with integrated tonal noise reduction
GB2466672B (en) 2009-01-06 2013-03-13 Skype Speech coding
US8244523B1 (en) * 2009-04-08 2012-08-14 Rockwell Collins, Inc. Systems and methods for noise reduction
JP5460709B2 (ja) * 2009-06-04 2014-04-02 パナソニック株式会社 音響信号処理装置および方法
DE102009034238A1 (de) 2009-07-22 2011-02-17 Daimler Ag Statorsegment und Stator eines Hybrid- oder Elektrofahrzeuges
DE102009034235A1 (de) 2009-07-22 2011-02-17 Daimler Ag Stator eines Hybrid- oder Elektrofahrzeuges, Statorträger
JP5712220B2 (ja) 2009-10-19 2015-05-07 テレフオンアクチーボラゲット エル エム エリクソン（パブル） 音声活動検出のための方法および背景推定器
EP2491548A4 (en) 2009-10-19 2013-10-30 Ericsson Telefon Ab L M VOICE ACTIVITY METHOD AND DETECTOR FOR SPEECH ENCODER
CN102136271B (zh) * 2011-02-09 2012-07-04 华为技术有限公司 舒适噪声生成器、方法及回声抵消装置
ES2535609T3 (es) * 2011-02-14 2015-05-13 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Codificador de audio con estimación de ruido de fondo durante fases activas
SG11201500595TA (en) * 2012-09-11 2015-04-29 Ericsson Telefon Ab L M Generation of comfort noise
CN103050121A (zh) * 2012-12-31 2013-04-17 北京迅光达通信技术有限公司 线性预测语音编码方法及语音合成方法
CN104347067B (zh) * 2013-08-06 2017-04-12 华为技术有限公司 一种音频信号分类方法和装置
US9570093B2 (en) * 2013-09-09 2017-02-14 Huawei Technologies Co., Ltd. Unvoiced/voiced decision for speech processing
MX355091B (es) * 2013-10-18 2018-04-04 Fraunhofer Ges Forschung Concepto para codificar una señal de audio y decodificar una señal de audio usando información de conformación espectral relacionada con la voz.
EP3175458B1 (en) * 2014-07-29 2017-12-27 Telefonaktiebolaget LM Ericsson (publ) Estimation of background noise in audio signals
US11114104B2 (en) * 2019-06-18 2021-09-07 International Business Machines Corporation Preventing adversarial audio attacks on digital assistants
KR20230103130A (ko) * 2021-12-31 2023-07-07 에스케이하이닉스 주식회사 메모리 컨트롤러 및 그 동작 방법

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5297213A (en) * 1992-04-06 1994-03-22 Holden Thomas W System and method for reducing noise
WO1997022117A1 (en) * 1995-12-12 1997-06-19 Nokia Mobile Phones Limited Method and device for voice activity detection and a communication device
KR20030034260A (ko) * 2001-08-07 2003-05-09 한국전자통신연구원 이동 통신 시스템의 음성 활성도 측정 장치 및 그 방법
US20050143978A1 (en) * 2001-12-05 2005-06-30 France Telecom Speech detection system in an audio signal in noisy surrounding
US20030135367A1 (en) * 2002-01-04 2003-07-17 Broadcom Corporation Efficient excitation quantization in noise feedback coding with general noise shaping
US7065486B1 (en) * 2002-04-11 2006-06-20 Mindspeed Technologies, Inc. Linear prediction based noise suppression
CN101080766A (zh) * 2004-11-03 2007-11-28 声学技术公司 使用bark频带weiner滤波器和线性衰减的噪声降低和舒适噪声增益控制
US20110035213A1 (en) * 2007-06-22 2011-02-10 Vladimir Malenovsky Method and Device for Sound Activity Detection and Sound Signal Classification
US20110119067A1 (en) * 2008-07-14 2011-05-19 Electronics And Telecommunications Research Institute Apparatus for signal state decision of audio signal
US20100188092A1 (en) * 2009-01-28 2010-07-29 Yazaki Corporation Voltage-detection component and a substrate having the same
CN103440871A (zh) * 2013-08-21 2013-12-11 大连理工大学 一种语音中瞬态噪声抑制的方法

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
《Noise reduction method for wideband speech coding》;JELINEK MILAN et al.;《IEEE 2004 12th European Signal Processing Conference》;20040906;全文 *
《Robust voice activity detection using higher-order statistics in the LPC residual domain》;E. Nemer et al.;《IEEE Transactions on Speech and Audio Processing》;20010301;全文 *

Also Published As

Publication number Publication date
PL3309784T3 (pl) 2020-02-28
PT3309784T (pt) 2019-11-21
BR112017001643B1 (pt) 2021-01-12
EP3309784A1 (en) 2018-04-18
CN112927724B (zh) 2024-03-22
US9870780B2 (en) 2018-01-16
PH12017500031A1 (en) 2017-05-15
KR20170026545A (ko) 2017-03-08
US20170069331A1 (en) 2017-03-09
NZ743390A (en) 2021-03-26
KR102012325B1 (ko) 2019-08-20
RU2665916C2 (ru) 2018-09-04
RU2018129139A3 (enExample) 2019-12-20
JP6788086B2 (ja) 2020-11-18
US12347446B2 (en) 2025-07-01
CN112927724A (zh) 2021-06-08
CN112927725A (zh) 2021-06-08
RU2018129139A (ru) 2019-03-14
PL3582221T3 (pl) 2021-07-26
RU2020100879A3 (enExample) 2021-10-13
EP3582221B1 (en) 2021-02-24
JP6600337B2 (ja) 2019-10-30
HUE037050T2 (hu) 2018-08-28
ES2758517T3 (es) 2020-05-05
ES2664348T3 (es) 2018-04-19
US20180158465A1 (en) 2018-06-07
NZ728080A (en) 2018-08-31
JP2018041083A (ja) 2018-03-15
US20190267017A1 (en) 2019-08-29
ZA201708141B (en) 2019-09-25
US11114105B2 (en) 2021-09-07
MX365694B (es) 2019-06-11
KR20190097321A (ko) 2019-08-20
EP3175458A1 (en) 2017-06-07
MX385944B (es) 2025-03-18
WO2016018186A1 (en) 2016-02-04
US10347265B2 (en) 2019-07-09
CA2956531C (en) 2020-03-24
RU2760346C2 (ru) 2021-11-24
MX2019005799A (es) 2019-08-12
MX2017000805A (es) 2017-05-04
US20230215447A1 (en) 2023-07-06
CA2956531A1 (en) 2016-02-04
RU2020100879A (ru) 2021-07-14
CN106575511A (zh) 2017-04-19
ES2869141T3 (es) 2021-10-25
EP3309784B1 (en) 2019-09-04
RU2017106163A3 (enExample) 2018-08-28
US20210366496A1 (en) 2021-11-25
EP3175458B1 (en) 2017-12-27
JP2020024435A (ja) 2020-02-13
KR20180100452A (ko) 2018-09-10
DK3582221T3 (da) 2021-04-19
BR112017001643A2 (pt) 2018-01-30
JP6208377B2 (ja) 2017-10-04
ZA201903140B (en) 2020-09-30
RU2713852C2 (ru) 2020-02-07
RU2017106163A (ru) 2018-08-28
US11636865B2 (en) 2023-04-25
EP3582221A1 (en) 2019-12-18
US20250285630A1 (en) 2025-09-11
CN112927725B (zh) 2025-02-18
MY178131A (en) 2020-10-05
MX2021010373A (es) 2023-01-18
KR101895391B1 (ko) 2018-09-07
KR102267986B1 (ko) 2021-06-22
JP2017515138A (ja) 2017-06-08

Similar Documents

Publication Publication Date Title
CN106575511B (zh) 用于估计背景噪声的方法和背景噪声估计器
CN110265059B (zh) 估计音频信号中的背景噪声
HK1231246A1 (en) Estimation of background noise in audio signals
HK1231246B (zh) 用於估计背景噪声的方法和背景噪声估计器
NZ743390B2 (en) Estimation of background noise in audio signals

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
REG Reference to a national code

Ref country code: HK

Ref legal event code: DE

Ref document number: 1231246

Country of ref document: HK

GR01 Patent grant
GR01 Patent grant