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GB2573380B - Method and apparatus for acoustic echo suppression - Google Patents

Method and apparatus for acoustic echo suppression Download PDF

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Publication number
GB2573380B
GB2573380B GB1902631.9A GB201902631A GB2573380B GB 2573380 B GB2573380 B GB 2573380B GB 201902631 A GB201902631 A GB 201902631A GB 2573380 B GB2573380 B GB 2573380B
Authority
GB
United Kingdom
Prior art keywords
acoustic echo
echo suppression
suppression
acoustic
echo
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
GB1902631.9A
Other versions
GB201902631D0 (en
GB2573380A (en
Inventor
Thorpe Peter
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.)
Cirrus Logic International Semiconductor Ltd
Original Assignee
Cirrus Logic International Semiconductor 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
Priority claimed from US16/185,217 external-priority patent/US10566008B2/en
Application filed by Cirrus Logic International Semiconductor Ltd filed Critical Cirrus Logic International Semiconductor Ltd
Publication of GB201902631D0 publication Critical patent/GB201902631D0/en
Publication of GB2573380A publication Critical patent/GB2573380A/en
Application granted granted Critical
Publication of GB2573380B publication Critical patent/GB2573380B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • 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
    • 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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computational Linguistics (AREA)
  • Quality & Reliability (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Circuit For Audible Band Transducer (AREA)
GB1902631.9A 2018-03-02 2019-02-27 Method and apparatus for acoustic echo suppression Active GB2573380B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201862637494P 2018-03-02 2018-03-02
US16/185,217 US10566008B2 (en) 2018-03-02 2018-11-09 Method and apparatus for acoustic echo suppression

Publications (3)

Publication Number Publication Date
GB201902631D0 GB201902631D0 (en) 2019-04-10
GB2573380A GB2573380A (en) 2019-11-06
GB2573380B true GB2573380B (en) 2021-12-01

Family

ID=65998908

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1902631.9A Active GB2573380B (en) 2018-03-02 2019-02-27 Method and apparatus for acoustic echo suppression

Country Status (1)

Country Link
GB (1) GB2573380B (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130332157A1 (en) * 2012-06-08 2013-12-12 Apple Inc. Audio noise estimation and audio noise reduction using multiple microphones

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130332157A1 (en) * 2012-06-08 2013-12-12 Apple Inc. Audio noise estimation and audio noise reduction using multiple microphones

Also Published As

Publication number Publication date
GB201902631D0 (en) 2019-04-10
GB2573380A (en) 2019-11-06

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