CA2011775A1 - Methode de detection de signal sonore - Google Patents

Methode de detection de signal sonore

Info

Publication number
CA2011775A1
CA2011775A1 CA2011775A CA2011775A CA2011775A1 CA 2011775 A1 CA2011775 A1 CA 2011775A1 CA 2011775 A CA2011775 A CA 2011775A CA 2011775 A CA2011775 A CA 2011775A CA 2011775 A1 CA2011775 A1 CA 2011775A1
Authority
CA
Canada
Prior art keywords
sound receiving
receiving unit
acoustic signal
power
signal
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.)
Granted
Application number
CA2011775A
Other languages
English (en)
Other versions
CA2011775C (fr
Inventor
Yutaka Kaneda
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.)
NTT Inc
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Publication of CA2011775A1 publication Critical patent/CA2011775A1/fr
Application granted granted Critical
Publication of CA2011775C publication Critical patent/CA2011775C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/78—Detection of presence or absence of voice signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers
    • H04R3/005—Circuits for transducers 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; ELECTRIC HEARING AIDS; 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
    • H04R2201/403—Linear arrays of transducers

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • General Health & Medical Sciences (AREA)
  • Computational Linguistics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Multimedia (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
CA002011775A 1989-03-10 1990-03-08 Methode de detection de signal sonore Expired - Lifetime CA2011775C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP5895389 1989-03-10
JP1-58953 1989-03-10

Publications (2)

Publication Number Publication Date
CA2011775A1 true CA2011775A1 (fr) 1990-09-10
CA2011775C CA2011775C (fr) 1995-06-27

Family

ID=13099200

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002011775A Expired - Lifetime CA2011775C (fr) 1989-03-10 1990-03-08 Methode de detection de signal sonore

Country Status (4)

Country Link
US (1) US5208864A (fr)
EP (1) EP0386765B1 (fr)
CA (1) CA2011775C (fr)
DE (1) DE69011709T2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108614268A (zh) * 2018-04-26 2018-10-02 中国人民解放军91550部队 低空高速飞行目标的声学跟踪方法

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JP5857403B2 (ja) * 2010-12-17 2016-02-10 富士通株式会社 音声処理装置および音声処理プログラム
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GB2493327B (en) 2011-07-05 2018-06-06 Skype Processing audio signals
GB2495472B (en) * 2011-09-30 2019-07-03 Skype Processing audio signals
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CN105321528B (zh) * 2014-06-27 2019-11-05 中兴通讯股份有限公司 一种麦克风阵列语音检测方法及装置
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108614268A (zh) * 2018-04-26 2018-10-02 中国人民解放军91550部队 低空高速飞行目标的声学跟踪方法
CN108614268B (zh) * 2018-04-26 2021-12-07 中国人民解放军91550部队 低空高速飞行目标的声学跟踪方法

Also Published As

Publication number Publication date
EP0386765B1 (fr) 1994-08-24
CA2011775C (fr) 1995-06-27
US5208864A (en) 1993-05-04
EP0386765A2 (fr) 1990-09-12
EP0386765A3 (fr) 1991-03-20
DE69011709T2 (de) 1994-12-15
DE69011709D1 (de) 1994-09-29

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed
MKEC Expiry (correction)

Effective date: 20121202