EP4220637A4 - Multi-channel audio signal acquisition method and apparatus, and system - Google Patents

Multi-channel audio signal acquisition method and apparatus, 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)
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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Processing of the speech or voice signal 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Processing of the speech or voice signal 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Processing of the speech or voice signal 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Processing of the speech or voice signal 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
EP21870910.3A 2020-09-25 2021-06-29 Multi-channel audio signal acquisition method and apparatus, and system Pending EP4220637A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202011027264.8A CN114255781A (en) 2020-09-25 2020-09-25 Method, device and system for acquiring multi-channel audio signal
PCT/CN2021/103110 WO2022062531A1 (en) 2020-09-25 2021-06-29 Multi-channel audio signal acquisition method and apparatus, and system

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 Multi-channel audio signal acquisition method and apparatus, and system

Country Status (3)

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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117714851A (en) * 2022-05-25 2024-03-15 荣耀终端有限公司 Video recording method, device and storage medium
CN116668892B (en) * 2022-11-14 2024-04-12 荣耀终端有限公司 Audio signal processing method, electronic device and readable storage medium

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 (en) * 2012-11-15 2013-03-13 东莞宇龙通信科技有限公司 Image pickup sound extracting method and device
CN104599674A (en) * 2014-12-30 2015-05-06 西安乾易企业管理咨询有限公司 System and method for directional recording in camera shooting
GB2543276A (en) * 2015-10-12 2017-04-19 Nokia Technologies Oy Distributed audio capture and mixing
CN108352155A (en) * 2015-09-30 2018-07-31 惠普发展公司，有限责任合伙企业 Inhibit ambient sound
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 (en) * 2017-05-17 2018-08-10 宁波桑德纳电子科技有限公司 A kind of long-range audio collecting device, monitoring device and long-range collection sound method
US10178490B1 (en) * 2017-06-30 2019-01-08 Apple Inc. Intelligent audio rendering for video recording
CN115762579A (en) * 2018-09-29 2023-03-07 华为技术有限公司 Sound processing method, device and equipment
CN111050269B (en) * 2018-10-15 2021-11-19 华为技术有限公司 Audio processing method and electronic equipment
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
WO2022062531A1 (en) 2022-03-31
EP4220637A1 (en) 2023-08-02
CN114255781A (en) 2022-03-29

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