DE68912692D1 - Zur Sprachqualitätsmodifizierung geeignetes Übertragungssystem durch Klassifizierung der Sprachsignale. - Google Patents

Zur Sprachqualitätsmodifizierung geeignetes Übertragungssystem durch Klassifizierung der Sprachsignale.

Info

Publication number
DE68912692D1
DE68912692D1 DE89117463T DE68912692T DE68912692D1 DE 68912692 D1 DE68912692 D1 DE 68912692D1 DE 89117463 T DE89117463 T DE 89117463T DE 68912692 T DE68912692 T DE 68912692T DE 68912692 D1 DE68912692 D1 DE 68912692D1
Authority
DE
Germany
Prior art keywords
signals
parameter
sound
frame
subframes
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
DE89117463T
Other languages
English (en)
Other versions
DE68912692T2 (de
Inventor
Kazunori Ozawa
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.)
NEC Corp
Original Assignee
NEC 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
Priority claimed from JP63237727A external-priority patent/JP2992998B2/ja
Priority claimed from JP63316040A external-priority patent/JPH02160300A/ja
Application filed by NEC Corp filed Critical NEC Corp
Publication of DE68912692D1 publication Critical patent/DE68912692D1/de
Application granted granted Critical
Publication of DE68912692T2 publication Critical patent/DE68912692T2/de
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
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
DE68912692T 1988-09-21 1989-09-21 Zur Sprachqualitätsmodifizierung geeignetes Übertragungssystem durch Klassifizierung der Sprachsignale. Expired - Lifetime DE68912692T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP63237727A JP2992998B2 (ja) 1988-09-21 1988-09-21 音声符号化復号化装置
JP63316040A JPH02160300A (ja) 1988-12-13 1988-12-13 音声符号化方式

Publications (2)

Publication Number Publication Date
DE68912692D1 true DE68912692D1 (de) 1994-03-10
DE68912692T2 DE68912692T2 (de) 1994-05-26

Family

ID=26533339

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68912692T Expired - Lifetime DE68912692T2 (de) 1988-09-21 1989-09-21 Zur Sprachqualitätsmodifizierung geeignetes Übertragungssystem durch Klassifizierung der Sprachsignale.

Country Status (4)

Country Link
US (1) US5018200A (de)
EP (1) EP0360265B1 (de)
CA (1) CA1333425C (de)
DE (1) DE68912692T2 (de)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3102015B2 (ja) * 1990-05-28 2000-10-23 日本電気株式会社 音声復号化方法
US5233660A (en) * 1991-09-10 1993-08-03 At&T Bell Laboratories Method and apparatus for low-delay celp speech coding and decoding
US5189701A (en) * 1991-10-25 1993-02-23 Micom Communications Corp. Voice coder/decoder and methods of coding/decoding
IT1257431B (it) * 1992-12-04 1996-01-16 Sip Procedimento e dispositivo per la quantizzazione dei guadagni dell'eccitazione in codificatori della voce basati su tecniche di analisi per sintesi
JP2655046B2 (ja) * 1993-09-13 1997-09-17 日本電気株式会社 ベクトル量子化装置
FI98163C (fi) * 1994-02-08 1997-04-25 Nokia Mobile Phones Ltd Koodausjärjestelmä parametriseen puheenkoodaukseen
US5450449A (en) * 1994-03-14 1995-09-12 At&T Ipm Corp. Linear prediction coefficient generation during frame erasure or packet loss
DE69628103T2 (de) * 1995-09-14 2004-04-01 Kabushiki Kaisha Toshiba, Kawasaki Verfahren und Filter zur Hervorbebung von Formanten
FR2741744B1 (fr) * 1995-11-23 1998-01-02 Thomson Csf Procede et dispositif d'evaluation de l'energie du signal de parole par sous bande pour vocodeur bas debits
JP3094908B2 (ja) * 1996-04-17 2000-10-03 日本電気株式会社 音声符号化装置
US6047254A (en) * 1996-05-15 2000-04-04 Advanced Micro Devices, Inc. System and method for determining a first formant analysis filter and prefiltering a speech signal for improved pitch estimation
US5937374A (en) * 1996-05-15 1999-08-10 Advanced Micro Devices, Inc. System and method for improved pitch estimation which performs first formant energy removal for a frame using coefficients from a prior frame
US5960386A (en) * 1996-05-17 1999-09-28 Janiszewski; Thomas John Method for adaptively controlling the pitch gain of a vocoder's adaptive codebook
US6708146B1 (en) * 1997-01-03 2004-03-16 Telecommunications Research Laboratories Voiceband signal classifier
US7039581B1 (en) * 1999-09-22 2006-05-02 Texas Instruments Incorporated Hybrid speed coding and system
US6889186B1 (en) * 2000-06-01 2005-05-03 Avaya Technology Corp. Method and apparatus for improving the intelligibility of digitally compressed speech
WO2004027754A1 (en) * 2002-09-17 2004-04-01 Koninklijke Philips Electronics N.V. A method of synthesizing of an unvoiced speech signal
US7660715B1 (en) 2004-01-12 2010-02-09 Avaya Inc. Transparent monitoring and intervention to improve automatic adaptation of speech models
US7892648B2 (en) * 2005-01-21 2011-02-22 International Business Machines Corporation SiCOH dielectric material with improved toughness and improved Si-C bonding
US7529670B1 (en) 2005-05-16 2009-05-05 Avaya Inc. Automatic speech recognition system for people with speech-affecting disabilities
US7653543B1 (en) 2006-03-24 2010-01-26 Avaya Inc. Automatic signal adjustment based on intelligibility
US7925508B1 (en) 2006-08-22 2011-04-12 Avaya Inc. Detection of extreme hypoglycemia or hyperglycemia based on automatic analysis of speech patterns
US7962342B1 (en) 2006-08-22 2011-06-14 Avaya Inc. Dynamic user interface for the temporarily impaired based on automatic analysis for speech patterns
US7675411B1 (en) 2007-02-20 2010-03-09 Avaya Inc. Enhancing presence information through the addition of one or more of biotelemetry data and environmental data
US8041344B1 (en) 2007-06-26 2011-10-18 Avaya Inc. Cooling off period prior to sending dependent on user's state
US8457965B2 (en) * 2009-10-06 2013-06-04 Rothenberg Enterprises Method for the correction of measured values of vowel nasalance
CN102800317B (zh) * 2011-05-25 2014-09-17 华为技术有限公司 信号分类方法及设备、编解码方法及设备
CN103474067B (zh) * 2013-08-19 2016-08-24 科大讯飞股份有限公司 语音信号传输方法及系统
CN103474075B (zh) * 2013-08-19 2016-12-28 科大讯飞股份有限公司 语音信号发送方法及系统、接收方法及系统
JP6759898B2 (ja) * 2016-09-08 2020-09-23 富士通株式会社 発話区間検出装置、発話区間検出方法及び発話区間検出用コンピュータプログラム
JP6996185B2 (ja) * 2017-09-15 2022-01-17 富士通株式会社 発話区間検出装置、発話区間検出方法及び発話区間検出用コンピュータプログラム

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0076234B1 (de) * 1981-09-24 1985-09-04 GRETAG Aktiengesellschaft Verfahren und Vorrichtung zur redundanzvermindernden digitalen Sprachverarbeitung
US4704730A (en) * 1984-03-12 1987-11-03 Allophonix, Inc. Multi-state speech encoder and decoder
JPS61134000A (ja) * 1984-12-05 1986-06-21 株式会社日立製作所 音声分析合成方式
CA1252568A (en) * 1984-12-24 1989-04-11 Kazunori Ozawa Low bit-rate pattern encoding and decoding capable of reducing an information transmission rate
JP2586043B2 (ja) * 1987-05-14 1997-02-26 日本電気株式会社 マルチパルス符号化装置

Also Published As

Publication number Publication date
US5018200A (en) 1991-05-21
EP0360265A3 (en) 1990-09-26
EP0360265B1 (de) 1994-01-26
CA1333425C (en) 1994-12-06
EP0360265A2 (de) 1990-03-28
DE68912692T2 (de) 1994-05-26

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