GB2545359B - Device for capturing and outputting audio - Google Patents

Device for capturing and outputting audio

Info

Publication number
GB2545359B
GB2545359B GB1703478.6A GB201703478A GB2545359B GB 2545359 B GB2545359 B GB 2545359B GB 201703478 A GB201703478 A GB 201703478A GB 2545359 B GB2545359 B GB 2545359B
Authority
GB
United Kingdom
Prior art keywords
capturing
outputting audio
audio
outputting
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
GB1703478.6A
Other versions
GB2545359A (en
GB201703478D0 (en
Inventor
Santilli Andrea
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.)
Asdsp Ltd
Original Assignee
Asdsp 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 Asdsp Ltd filed Critical Asdsp Ltd
Priority to GB1703478.6A priority Critical patent/GB2545359B/en
Publication of GB201703478D0 publication Critical patent/GB201703478D0/en
Publication of GB2545359A publication Critical patent/GB2545359A/en
Application granted granted Critical
Publication of GB2545359B publication Critical patent/GB2545359B/en
Priority to PCT/GB2018/050418 priority patent/WO2018158558A1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
    • H04B3/23—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
    • H04M3/568—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities audio processing specific to telephonic conferencing, e.g. spatial distribution, mixing of participants
    • 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
    • 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
    • G10L2021/02082—Noise filtering the noise being echo, reverberation of the speech
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/26—Spatial arrangements of separate transducers responsive to two or more frequency ranges
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/40—Details of arrangements for obtaining desired directional characteristic by combining a number of identical transducers covered by H04R1/40 but not provided for in any of its subgroups
    • H04R2201/401—2D or 3D arrays of transducers

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Circuit For Audible Band Transducer (AREA)
GB1703478.6A 2017-03-03 2017-03-03 Device for capturing and outputting audio Active GB2545359B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1703478.6A GB2545359B (en) 2017-03-03 2017-03-03 Device for capturing and outputting audio
PCT/GB2018/050418 WO2018158558A1 (en) 2017-03-03 2018-02-16 Device for capturing and outputting audio

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1703478.6A GB2545359B (en) 2017-03-03 2017-03-03 Device for capturing and outputting audio

Publications (3)

Publication Number Publication Date
GB201703478D0 GB201703478D0 (en) 2017-04-19
GB2545359A GB2545359A (en) 2017-06-14
GB2545359B true GB2545359B (en) 2018-02-14

Family

ID=58543782

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1703478.6A Active GB2545359B (en) 2017-03-03 2017-03-03 Device for capturing and outputting audio

Country Status (2)

Country Link
GB (1) GB2545359B (en)
WO (1) WO2018158558A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10667071B2 (en) * 2018-05-31 2020-05-26 Harman International Industries, Incorporated Low complexity multi-channel smart loudspeaker with voice control
CN110166898B (en) * 2019-05-20 2021-03-30 南京南方电讯有限公司 High-fidelity remote transmission array microphone
CN112151051B (en) * 2020-09-14 2023-12-19 海尔优家智能科技（北京）有限公司 Audio data processing method and device and storage medium
JP2023545961A (en) 2020-10-13 2023-11-01 アスク インダストリーズ ソシエイタ´ パー アゾーニ Microphone units, microphone meta-arrays, and networks with microphone meta-arrays
US11627395B2 (en) * 2021-04-29 2023-04-11 Halonix Technologies Private Limited Apparatus and methods for cancelling the noise of a speaker for speech recognition
WO2023133589A2 (en) * 2022-01-10 2023-07-13 Shure Acquisition Holdings, Inc. Beamforming microphone with loudspeaker

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060269080A1 (en) * 2004-10-15 2006-11-30 Lifesize Communications, Inc. Hybrid beamforming
GB2495130A (en) * 2011-09-30 2013-04-03 Skype Microphone array with beamforming means and echo-cancelling means
US20140335917A1 (en) * 2013-05-08 2014-11-13 Research In Motion Limited Dual beamform audio echo reduction

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6990193B2 (en) * 2002-11-29 2006-01-24 Mitel Knowledge Corporation Method of acoustic echo cancellation in full-duplex hands free audio conferencing with spatial directivity
US7903137B2 (en) * 2004-10-15 2011-03-08 Lifesize Communications, Inc. Videoconferencing echo cancellers
EP2499839B1 (en) * 2009-11-12 2017-01-04 Robert Henry Frater Speakerphone with microphone array

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060269080A1 (en) * 2004-10-15 2006-11-30 Lifesize Communications, Inc. Hybrid beamforming
GB2495130A (en) * 2011-09-30 2013-04-03 Skype Microphone array with beamforming means and echo-cancelling means
US20140335917A1 (en) * 2013-05-08 2014-11-13 Research In Motion Limited Dual beamform audio echo reduction

Also Published As

Publication number Publication date
WO2018158558A1 (en) 2018-09-07
GB2545359A (en) 2017-06-14
GB201703478D0 (en) 2017-04-19

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Legal Events

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Free format text: REGISTERED BETWEEN 20181213 AND 20181219