JP5675848B2 - レベルキューによる適応ノイズ抑制 - Google Patents

レベルキューによる適応ノイズ抑制 Download PDF

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JP5675848B2
JP5675848B2 JP2012550214A JP2012550214A JP5675848B2 JP 5675848 B2 JP5675848 B2 JP 5675848B2 JP 2012550214 A JP2012550214 A JP 2012550214A JP 2012550214 A JP2012550214 A JP 2012550214A JP 5675848 B2 JP5675848 B2 JP 5675848B2
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noise
module
acoustic signal
level difference
subtraction block
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JP2013518477A (ja
JP2013518477A5 (enExample
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ムルジア，カルロ
アヴェンダノ，カーロス
ユーニーズ，カリム
エヴリ，マーク
ジャン，イー
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オーディエンス，インコーポレイテッド
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    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • 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

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Multimedia (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Human Computer Interaction (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Quality & Reliability (AREA)
  • Computational Linguistics (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
JP2012550214A 2010-01-26 2011-01-25 レベルキューによる適応ノイズ抑制 Expired - Fee Related JP5675848B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US12/693,998 US8718290B2 (en) 2010-01-26 2010-01-26 Adaptive noise reduction using level cues
US12/693,998 2010-01-26
PCT/US2011/022462 WO2011094232A1 (en) 2010-01-26 2011-01-25 Adaptive noise reduction using level cues

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JP2013518477A JP2013518477A (ja) 2013-05-20
JP2013518477A5 JP2013518477A5 (enExample) 2014-03-13
JP5675848B2 true JP5675848B2 (ja) 2015-02-25

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US (2) US8718290B2 (enExample)
JP (1) JP5675848B2 (enExample)
KR (1) KR20120114327A (enExample)
TW (1) TW201142829A (enExample)
WO (1) WO2011094232A1 (enExample)

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US9502048B2 (en) 2010-04-19 2016-11-22 Knowles Electronics, Llc Adaptively reducing noise to limit speech distortion
US9830899B1 (en) 2006-05-25 2017-11-28 Knowles Electronics, Llc Adaptive noise cancellation
US10257611B2 (en) 2016-05-02 2019-04-09 Knowles Electronics, Llc Stereo separation and directional suppression with omni-directional microphones

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