NO974705D0 - Transkoder med forebyggelse av tandem-koding av tale - Google Patents

Transkoder med forebyggelse av tandem-koding av tale

Info

Publication number
NO974705D0
NO974705D0 NO974705A NO974705A NO974705D0 NO 974705 D0 NO974705 D0 NO 974705D0 NO 974705 A NO974705 A NO 974705A NO 974705 A NO974705 A NO 974705A NO 974705 D0 NO974705 D0 NO 974705D0
Authority
NO
Norway
Prior art keywords
speech
pcm
mobile
transcoder
coding
Prior art date
Application number
NO974705A
Other languages
English (en)
Other versions
NO321398B1 (no
NO974705L (no
Inventor
Matti Lehtimaeki
Original Assignee
Nokia Telecommunications Oy
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 Nokia Telecommunications Oy filed Critical Nokia Telecommunications Oy
Publication of NO974705D0 publication Critical patent/NO974705D0/no
Publication of NO974705L publication Critical patent/NO974705L/no
Publication of NO321398B1 publication Critical patent/NO321398B1/no

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
    • G10L19/16—Vocoder architecture
    • G10L19/173—Transcoding, i.e. converting between two coded representations avoiding cascaded coding-decoding
    • 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
    • G10L19/16—Vocoder architecture
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/18—Service support devices; Network management devices
    • H04W88/181—Transcoding devices; Rate adaptation devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (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)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Dc Digital Transmission (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Camera Data Copying Or Recording (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
NO19974705A 1995-04-13 1997-10-10 Transkoder med forebyggelse av tandem-koding av tale NO321398B1 (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI951807A FI101439B (fi) 1995-04-13 1995-04-13 Transkooderi, jossa on tandem-koodauksen esto
PCT/FI1996/000192 WO1996032823A1 (en) 1995-04-13 1996-04-11 Transcoder with prevention of tandem coding of speech

Publications (3)

Publication Number Publication Date
NO974705D0 true NO974705D0 (no) 1997-10-10
NO974705L NO974705L (no) 1997-12-11
NO321398B1 NO321398B1 (no) 2006-05-08

Family

ID=8543252

Family Applications (1)

Application Number Title Priority Date Filing Date
NO19974705A NO321398B1 (no) 1995-04-13 1997-10-10 Transkoder med forebyggelse av tandem-koding av tale

Country Status (11)

Country Link
US (1) US5991716A (no)
EP (2) EP0820685B1 (no)
JP (1) JPH11503582A (no)
CN (1) CN1109459C (no)
AT (1) ATE289738T1 (no)
AU (1) AU705619B2 (no)
DE (1) DE69634381T2 (no)
ES (2) ES2237765T3 (no)
FI (1) FI101439B (no)
NO (1) NO321398B1 (no)
WO (1) WO1996032823A1 (no)

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WO2001024549A2 (en) * 1999-09-30 2001-04-05 Nokia Corporation Voice over pcm technique providing compatibility between pcm data and lower rate vocoder data
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JP2004061646A (ja) * 2002-07-25 2004-02-26 Fujitsu Ltd Ｔｆｏ機能を有する音声符号化器および方法
JP2004069963A (ja) * 2002-08-06 2004-03-04 Fujitsu Ltd 音声符号変換装置及び音声符号化装置
US7808920B2 (en) * 2002-10-28 2010-10-05 Qualcomm Incorporated Tandem-free vocoder operations between non-compatible communication systems
KR100451622B1 (ko) * 2002-11-11 2004-10-08 한국전자통신연구원 통신용 보코더 및 이를 이용한 통신 방법
DE602004006401T2 (de) * 2003-04-08 2008-01-10 Koninklijke Philips Electronics N.V. Aktualisieren eines verborgenen datenkanals
JP4370802B2 (ja) 2003-04-22 2009-11-25 富士通株式会社 データ処理方法およびデータ処理装置
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FR2881867A1 (fr) * 2005-02-04 2006-08-11 France Telecom Procede de transmission de marques de fin de parole dans un systeme de reconnaissance de la parole
JP4793539B2 (ja) * 2005-03-29 2011-10-12 日本電気株式会社 符号変換方法及び装置とプログラム並びにその記憶媒体
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CN102668411B (zh) * 2009-02-09 2014-07-09 华为技术有限公司 Dtx比特的映射方法和设备
ES2588156T3 (es) * 2012-12-21 2016-10-31 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Generación de ruido de confort con alta resolución espectro-temporal en transmisión discontinua de señales de audio
EP2936486B1 (en) 2012-12-21 2018-07-18 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Comfort noise addition for modeling background noise at low bit-rates
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US5430724A (en) * 1993-07-02 1995-07-04 Telefonaktiebolaget L M Ericsson TDMA on a cellular communications system PCM link
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Also Published As

Publication number Publication date
EP1533790B1 (en) 2014-06-18
ES2237765T3 (es) 2005-08-01
CN1185262A (zh) 1998-06-17
AU705619B2 (en) 1999-05-27
ES2491890T3 (es) 2014-09-08
ATE289738T1 (de) 2005-03-15
FI951807A0 (fi) 1995-04-13
EP0820685B1 (en) 2005-02-23
FI101439B1 (fi) 1998-06-15
FI951807A (fi) 1996-10-14
DE69634381T2 (de) 2006-01-12
NO321398B1 (no) 2006-05-08
EP1533790A1 (en) 2005-05-25
AU5336396A (en) 1996-10-30
JPH11503582A (ja) 1999-03-26
FI101439B (fi) 1998-06-15
US5991716A (en) 1999-11-23
EP0820685A1 (en) 1998-01-28
CN1109459C (zh) 2003-05-21
NO974705L (no) 1997-12-11
WO1996032823A1 (en) 1996-10-17
DE69634381D1 (de) 2005-03-31

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Legal Events

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