JPS5712999B2 - - Google Patents

Info

Publication number
JPS5712999B2
JPS5712999B2 JP3972374A JP3972374A JPS5712999B2 JP S5712999 B2 JPS5712999 B2 JP S5712999B2 JP 3972374 A JP3972374 A JP 3972374A JP 3972374 A JP3972374 A JP 3972374A JP S5712999 B2 JPS5712999 B2 JP S5712999B2
Authority
JP
Japan
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.)
Expired
Application number
JP3972374A
Other languages
Japanese (ja)
Other versions
JPS50133705A (
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 filed Critical
Priority to JP3972374A priority Critical patent/JPS5712999B2/ja
Priority to FR7510501A priority patent/FR2266991B1/fr
Priority to US05/564,644 priority patent/US4001505A/en
Priority to CA223,997A priority patent/CA1039420A/en
Priority to IT22063/75A priority patent/IT1034890B/it
Priority to GB14378/75A priority patent/GB1508893A/en
Publication of JPS50133705A publication Critical patent/JPS50133705A/ja
Publication of JPS5712999B2 publication Critical patent/JPS5712999B2/ja
Expired 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
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/17—Time-division multiplex systems in which the transmission channel allotted to a first user may be taken away and re-allotted to a second user if the first user becomes inactive, e.g. TASI
    • H04J3/175—Speech activity or inactivity detectors

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computational Linguistics (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)
  • Time-Division Multiplex Systems (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
JP3972374A 1974-04-08 1974-04-08 Expired JPS5712999B2 ( )

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP3972374A JPS5712999B2 ( ) 1974-04-08 1974-04-08
FR7510501A FR2266991B1 ( ) 1974-04-08 1975-04-03
US05/564,644 US4001505A (en) 1974-04-08 1975-04-03 Speech signal presence detector
CA223,997A CA1039420A (en) 1974-04-08 1975-04-07 Detector for coded speech signals
IT22063/75A IT1034890B (it) 1974-04-08 1975-04-07 Rivelatore per segnali vocali codificati
GB14378/75A GB1508893A (en) 1974-04-08 1975-04-08 Detector for coded speech signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3972374A JPS5712999B2 ( ) 1974-04-08 1974-04-08

Publications (2)

Publication Number Publication Date
JPS50133705A JPS50133705A ( ) 1975-10-23
JPS5712999B2 true JPS5712999B2 ( ) 1982-03-13

Family

ID=12560895

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3972374A Expired JPS5712999B2 ( ) 1974-04-08 1974-04-08

Country Status (6)

Country Link
US (1) US4001505A ( )
JP (1) JPS5712999B2 ( )
CA (1) CA1039420A ( )
FR (1) FR2266991B1 ( )
GB (1) GB1508893A ( )
IT (1) IT1034890B ( )

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10020770B2 (en) 2016-03-04 2018-07-10 Honda Motor Co., Ltd. Vehicle

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4059730A (en) * 1976-08-17 1977-11-22 Bell Telephone Laboratories, Incorporated Apparatus for mitigating signal distortion and noise signal contrast in a communications system
US4123711A (en) * 1977-01-24 1978-10-31 Canadian Patents And Development Limited Synchronized compressor and expander voice processing system for radio telephone
FR2380612A1 (fr) * 1977-02-09 1978-09-08 Thomson Csf Dispositif de discrimination des signaux de parole et systeme d'alternat comportant un tel dispositif
JPS558120A (en) * 1978-06-30 1980-01-21 Nec Corp Tone detection device
JPS56104399A (en) * 1980-01-23 1981-08-20 Hitachi Ltd Voice interval detection system
US4314100A (en) * 1980-01-24 1982-02-02 Storage Technology Corporation Data detection circuit for a TASI system
FR2485839B1 (fr) * 1980-06-27 1985-09-06 Cit Alcatel Procede de detection de parole dans un signal de circuit telephonique et detecteur de parole le mettant en oeuvre
FR2494017B1 (fr) * 1980-11-07 1985-10-25 Thomson Csf Procede de detection de la frequence de melodie dans un signal de parole et dispositif destine a la mise en oeuvre de ce procede
US4764966A (en) * 1985-10-11 1988-08-16 International Business Machines Corporation Method and apparatus for voice detection having adaptive sensitivity
JPH07113840B2 (ja) * 1989-06-29 1995-12-06 三菱電機株式会社 音声検出器
DE4127295A1 (de) * 1991-08-17 1993-02-18 Koelchens Gert Dipl Ing Spracherkennungsschalter
JPH075898A (ja) * 1992-04-28 1995-01-10 Technol Res Assoc Of Medical & Welfare Apparatus 音声信号処理装置と破裂性抽出装置
AUPO714197A0 (en) 1997-06-02 1997-06-26 University Of Melbourne, The Multi-strategy array processor
US6490556B2 (en) * 1999-05-28 2002-12-03 Intel Corporation Audio classifier for half duplex communication
US6885735B2 (en) * 2001-03-29 2005-04-26 Intellisist, Llc System and method for transmitting voice input from a remote location over a wireless data channel
US6754337B2 (en) * 2002-01-25 2004-06-22 Acoustic Technologies, Inc. Telephone having four VAD circuits
GB2430129B (en) * 2005-09-08 2007-10-31 Motorola Inc Voice activity detector and method of operation therein
US11790931B2 (en) * 2020-10-27 2023-10-17 Ambiq Micro, Inc. Voice activity detection using zero crossing detection

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3278685A (en) * 1962-12-31 1966-10-11 Ibm Wave analyzing system
US3488446A (en) * 1966-10-31 1970-01-06 Bell Telephone Labor Inc Apparatus for deriving pitch information from a speech wave
US3507999A (en) * 1967-12-20 1970-04-21 Bell Telephone Labor Inc Speech-noise discriminator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10020770B2 (en) 2016-03-04 2018-07-10 Honda Motor Co., Ltd. Vehicle

Also Published As

Publication number Publication date
FR2266991A1 ( ) 1975-10-31
US4001505A (en) 1977-01-04
CA1039420A (en) 1978-09-26
IT1034890B (it) 1979-10-10
FR2266991B1 ( ) 1980-05-16
GB1508893A (en) 1978-04-26
JPS50133705A ( ) 1975-10-23

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