EP4220637A4 - METHOD AND APPARATUS FOR ACQUIRING MULTI-CHANNEL AUDIO SIGNAL, AND SYSTEM - Google Patents

METHOD AND APPARATUS FOR ACQUIRING MULTI-CHANNEL AUDIO SIGNAL, AND SYSTEM

Info

Publication number
EP4220637A4
EP4220637A4 EP21870910.3A EP21870910A EP4220637A4 EP 4220637 A4 EP4220637 A4 EP 4220637A4 EP 21870910 A EP21870910 A EP 21870910A EP 4220637 A4 EP4220637 A4 EP 4220637A4
Authority
EP
European Patent Office
Prior art keywords
audio signal
signal acquisition
channel audio
acquisition method
channel
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.)
Pending
Application number
EP21870910.3A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP4220637A1 (en
Inventor
Wendong Wang
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.)
Guangdong Oppo Mobile Telecommunications Corp Ltd
Original Assignee
Guangdong Oppo Mobile Telecommunications Corp Ltd
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 Guangdong Oppo Mobile Telecommunications Corp Ltd filed Critical Guangdong Oppo Mobile Telecommunications Corp Ltd
Publication of EP4220637A1 publication Critical patent/EP4220637A1/en
Publication of EP4220637A4 publication Critical patent/EP4220637A4/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • H04R3/005—Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones
    • 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
    • G10L21/0208—Noise filtering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
    • H04S7/30—Control circuits for electronic adaptation of the sound field
    • H04S7/305—Electronic adaptation of stereophonic audio signals to reverberation of the listening space
    • 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
    • G10L2021/02161—Number of inputs available containing the signal or the noise to be suppressed
    • G10L2021/02166—Microphone arrays; Beamforming
    • 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
    • G10L21/0356—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude for synchronising with other signals, e.g. video signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2420/00—Details of connection covered by H04R, not provided for in its groups
    • H04R2420/01—Input selection or mixing for amplifiers or loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/01—Multi-channel, i.e. more than two input channels, sound reproduction with two speakers wherein the multi-channel information is substantially preserved
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/11—Positioning of individual sound objects, e.g. moving airplane, within a sound field
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/15—Aspects of sound capture and related signal processing for recording or reproduction

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Quality & Reliability (AREA)
  • Computational Linguistics (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Stereophonic System (AREA)
EP21870910.3A 2020-09-25 2021-06-29 METHOD AND APPARATUS FOR ACQUIRING MULTI-CHANNEL AUDIO SIGNAL, AND SYSTEM Pending EP4220637A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202011027264.8A CN114255781A (zh) 2020-09-25 2020-09-25 一种多通道音频信号获取方法、装置及系统
PCT/CN2021/103110 WO2022062531A1 (zh) 2020-09-25 2021-06-29 一种多通道音频信号获取方法、装置及系统

Publications (2)

Publication Number Publication Date
EP4220637A1 EP4220637A1 (en) 2023-08-02
EP4220637A4 true EP4220637A4 (en) 2024-01-24

Family

ID=80790688

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21870910.3A Pending EP4220637A4 (en) 2020-09-25 2021-06-29 METHOD AND APPARATUS FOR ACQUIRING MULTI-CHANNEL AUDIO SIGNAL, AND SYSTEM

Country Status (3)

Country Link
EP (1) EP4220637A4 (zh)
CN (1) CN114255781A (zh)
WO (1) WO2022062531A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116095465B (zh) * 2022-05-25 2023-10-20 荣耀终端有限公司 录像方法、装置及存储介质
CN116668892B (zh) * 2022-11-14 2024-04-12 荣耀终端有限公司 音频信号的处理方法、电子设备及可读存储介质

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180098174A1 (en) * 2015-01-30 2018-04-05 Dts, Inc. System and method for capturing, encoding, distributing, and decoding immersive audio
US20180295463A1 (en) * 2015-10-12 2018-10-11 Nokia Technologies Oy Distributed Audio Capture and Mixing
US20200288262A1 (en) * 2017-10-09 2020-09-10 Nokia Technologies Oy Spatial Audio Signal Processing

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102969003A (zh) * 2012-11-15 2013-03-13 东莞宇龙通信科技有限公司 摄像声音提取方法及装置
CN104599674A (zh) * 2014-12-30 2015-05-06 西安乾易企业管理咨询有限公司 一种摄像中定向录音的系统及方法
GB2543276A (en) * 2015-10-12 2017-04-19 Nokia Technologies Oy Distributed audio capture and mixing
EP3342187B1 (en) * 2015-09-30 2024-04-03 Hewlett-Packard Development Company, L.P. Suppressing ambient sounds
US9998606B2 (en) * 2016-06-10 2018-06-12 Glen A. Norris Methods and apparatus to assist listeners in distinguishing between electronically generated binaural sound and physical environment sound
GB2556058A (en) * 2016-11-16 2018-05-23 Nokia Technologies Oy Distributed audio capture and mixing controlling
CN108389586A (zh) * 2017-05-17 2018-08-10 宁波桑德纳电子科技有限公司 一种远程集音装置、监控装置及远程集音方法
US10178490B1 (en) * 2017-06-30 2019-01-08 Apple Inc. Intelligent audio rendering for video recording
CN110970057B (zh) * 2018-09-29 2022-10-28 华为技术有限公司 一种声音处理方法、装置与设备
CN111050269B (zh) * 2018-10-15 2021-11-19 华为技术有限公司 音频处理方法和电子设备
EP3683794B1 (en) * 2019-01-15 2021-07-28 Nokia Technologies Oy Audio processing

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180098174A1 (en) * 2015-01-30 2018-04-05 Dts, Inc. System and method for capturing, encoding, distributing, and decoding immersive audio
US20180295463A1 (en) * 2015-10-12 2018-10-11 Nokia Technologies Oy Distributed Audio Capture and Mixing
US20200288262A1 (en) * 2017-10-09 2020-09-10 Nokia Technologies Oy Spatial Audio Signal Processing

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2022062531A1 *

Also Published As

Publication number Publication date
CN114255781A (zh) 2022-03-29
EP4220637A1 (en) 2023-08-02
WO2022062531A1 (zh) 2022-03-31

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