DE3929481C2 - - Google Patents

Info

Publication number
DE3929481C2
DE3929481C2 DE19893929481 DE3929481A DE3929481C2 DE 3929481 C2 DE3929481 C2 DE 3929481C2 DE 19893929481 DE19893929481 DE 19893929481 DE 3929481 A DE3929481 A DE 3929481A DE 3929481 C2 DE3929481 C2 DE 3929481C2
Authority
DE
Germany
Prior art keywords
signals
neural network
signal
layer
speech
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.)
Expired - Lifetime
Application number
DE19893929481
Other languages
German (de)
English (en)
Other versions
DE3929481A1 (de
Inventor
Akira Musashino Tokio/Tokyo Jp Ichikawa
Yoshiaki Kawasaki Kanagawa Jp Asakawa
Akio Higashimurayama Tokio/Tokyo Jp Amano
Nobuo Pittsburgh Pa. Us Hataoka
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of DE3929481A1 publication Critical patent/DE3929481A1/de
Application granted granted Critical
Publication of DE3929481C2 publication Critical patent/DE3929481C2/de
Granted 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
    • 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
    • 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
    • G10L15/00—Speech recognition
    • G10L15/08—Speech classification or search
    • G10L15/16—Speech classification or search using artificial neural networks
    • 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
    • H04R3/00—Circuits for transducers
    • H04R3/005—Circuits for transducers for combining the signals of two or more microphones

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Computational Linguistics (AREA)
  • Quality & Reliability (AREA)
  • Signal Processing (AREA)
  • Artificial Intelligence (AREA)
  • Evolutionary Computation (AREA)
  • Circuit For Audible Band Transducer (AREA)
DE19893929481 1988-09-07 1989-09-05 Verfahren und vorrichtung zur vorbearbeitung von sprachsignalen Granted DE3929481A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22230988A JPH0272398A (ja) 1988-09-07 1988-09-07 音声信号用前処理装置

Publications (2)

Publication Number Publication Date
DE3929481A1 DE3929481A1 (de) 1990-03-15
DE3929481C2 true DE3929481C2 (https=) 1991-07-04

Family

ID=16780341

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19893929481 Granted DE3929481A1 (de) 1988-09-07 1989-09-05 Verfahren und vorrichtung zur vorbearbeitung von sprachsignalen

Country Status (2)

Country Link
JP (1) JPH0272398A (https=)
DE (1) DE3929481A1 (https=)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0435458B1 (en) * 1989-11-28 1995-02-01 Nec Corporation Speech/voiceband data discriminator
JPH0462599A (ja) * 1990-07-02 1992-02-27 N T T Data Tsushin Kk 雑音除去装置
JPH04295894A (ja) * 1991-03-26 1992-10-20 Sanyo Electric Co Ltd 神経回路網モデルによる音声認識方法
WO1993020552A1 (fr) * 1992-03-30 1993-10-14 Seiko Epson Corporation Appareil de reconnaissance vocale utilisant un reseau neuronal, et procede d'apprentissage associe
US5787393A (en) * 1992-03-30 1998-07-28 Seiko Epson Corporation Speech recognition apparatus using neural network, and learning method therefor
DE4243831A1 (de) * 1992-12-23 1994-06-30 Daimler Benz Ag Verfahren zur Laufzeitschätzung an gestörten Sprachkanälen
EP0712261A1 (de) * 1994-11-10 1996-05-15 Siemens Audiologische Technik GmbH Programmierbares Hörgerät
US6151592A (en) * 1995-06-07 2000-11-21 Seiko Epson Corporation Recognition apparatus using neural network, and learning method therefor
US5960391A (en) * 1995-12-13 1999-09-28 Denso Corporation Signal extraction system, system and method for speech restoration, learning method for neural network model, constructing method of neural network model, and signal processing system
DE19844748A1 (de) * 1998-09-29 1999-10-07 Siemens Audiologische Technik Verfahren zum Bereitstellen einer Richtmikrofoncharakteristik und Hörgerät
DE19943875A1 (de) 1999-09-14 2001-03-15 Thomson Brandt Gmbh System zur Sprachsteuerung mit einem Mikrofonarray
US6738481B2 (en) * 2001-01-10 2004-05-18 Ericsson Inc. Noise reduction apparatus and method
CN108766440B (zh) * 2018-05-28 2020-01-14 平安科技（深圳）有限公司 说话人分离模型训练方法、两说话人分离方法及相关设备

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE45831T1 (de) * 1983-05-18 1989-09-15 Speech Systems Inc Spracherkennungssystem.

Also Published As

Publication number Publication date
JPH0272398A (ja) 1990-03-12
DE3929481A1 (de) 1990-03-15

Similar Documents

Publication Publication Date Title
DE3929481C2 (https=)
DE69520067T2 (de) Verfahren und Einrichtung zur Kennzeichnung eines Eingangssignales
DE69626115T2 (de) Signalqualitätsbewertung
DE2919085C2 (de) Vorverarbeitungsverfahren und -vorrichtung für eine Spracherkennungsvorrichtung
DE3938645C1 (https=)
EP1214703B1 (de) Verfahren zum trainieren der grapheme nach phonemen regeln für die sprachsynthese
DE69629934T2 (de) Umgekehrte transform-schmalband/breitband tonsynthese
EP1280138A1 (de) Verfahren zur Analyse von Audiosignalen
WO2004013839A1 (de) Vorrichtung und verfahren zum erzeugen einer komplexen spektraldarstellung eines zeitdiskreten signals
DE69511602T2 (de) Signalquellencharakterisiersystem
DE112021001228T5 (de) Signalverarbeitungsvorrichtung, signalverarbeitungsverfahren und programm
DE69820497T2 (de) Neuronales netzwerk und seine anwendung für die spracherkennung
DE10201018A1 (de) Neuronales Netz zur Modellierung eines physikalischen Systems sowie Verfahren zur Bildung eines solchen neuronalen Netzes
DE19611732C1 (de) Verfahren zur Ermittlung von zur Entfernung geeigneten Gewichten eines neuronalen Netzes mit Hilfe eines Rechners
DE60110541T2 (de) Verfahren zur Spracherkennung mit geräuschabhängiger Normalisierung der Varianz
DE112017007051B4 (de) Signalverarbeitungsvorrichtung
EP0554494A1 (de) Adaptives nichtrekursives Digitalfilter
DE4209296A1 (de) Wort- und wortkettenerkennungssystem auf der basis eines neuronalen netzes mit automatischer zellbildung und -komprimierung sowie nachlernverfahren
DE2435654C2 (de) Verfahren und Vorrichtung zur Analyse und Synthese von menschlicher Sprache
DE3037276C2 (de) Tonsynthesizer
DE69427726T2 (de) Quantisierungsgerät
DE68921292T2 (de) Sprechererkennungssystem.
DE19628503A1 (de) Audiosignal-Verarbeitungsschaltung zur Berechnung eines Maskenpegels von quantisierten Audiosignalwerten
DE102005039621A1 (de) Verfahren und Vorrichtung zur adaptiven Reduktion von Rausch- und Hintergrundsignalen in einem sprachverarbeitenden System
WO2004047484A1 (de) Vorrichtung und verfahren zum unterdrücken einer rückkopplung

Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8128 New person/name/address of the agent

Representative=s name: STREHL, P., DIPL.-ING. DIPL.-WIRTSCH.-ING. SCHUEBE

D2 Grant after examination
8363 Opposition against the patent
8330 Complete disclaimer