DE68913691D1 - System zur Sprachcodierung und -decodierung. - Google Patents

System zur Sprachcodierung und -decodierung.

Info

Publication number
DE68913691D1
DE68913691D1 DE89403583T DE68913691T DE68913691D1 DE 68913691 D1 DE68913691 D1 DE 68913691D1 DE 89403583 T DE89403583 T DE 89403583T DE 68913691 T DE68913691 T DE 68913691T DE 68913691 D1 DE68913691 D1 DE 68913691D1
Authority
DE
Germany
Prior art keywords
leakage
depending
decoding system
speech coding
speech 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.)
Expired - Fee Related
Application number
DE89403583T
Other languages
English (en)
Other versions
DE68913691T2 (de
Inventor
Takahiro Nomura
Yohtaro Yatsuzuka
Shigeru Iizuka
Hideki Honma
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.)
KDDI Corp
Original Assignee
Kokusai Denshin Denwa KK
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 Kokusai Denshin Denwa KK filed Critical Kokusai Denshin Denwa KK
Application granted granted Critical
Publication of DE68913691D1 publication Critical patent/DE68913691D1/de
Publication of DE68913691T2 publication Critical patent/DE68913691T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Analogue/Digital Conversion (AREA)
DE68913691T 1988-12-22 1989-12-20 System zur Sprachcodierung und -decodierung. Expired - Fee Related DE68913691T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63322167A JP3033060B2 (ja) 1988-12-22 1988-12-22 音声予測符号化・復号化方式

Publications (2)

Publication Number Publication Date
DE68913691D1 true DE68913691D1 (de) 1994-04-14
DE68913691T2 DE68913691T2 (de) 1994-06-16

Family

ID=18140684

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68913691T Expired - Fee Related DE68913691T2 (de) 1988-12-22 1989-12-20 System zur Sprachcodierung und -decodierung.

Country Status (4)

Country Link
US (1) US5113448A (de)
EP (1) EP0375551B1 (de)
JP (1) JP3033060B2 (de)
DE (1) DE68913691T2 (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2635914A1 (en) * 1991-06-11 1992-12-23 Qualcomm Incorporated Error masking in a variable rate vocoder
US5694519A (en) * 1992-02-18 1997-12-02 Lucent Technologies, Inc. Tunable post-filter for tandem coders
FI95085C (fi) * 1992-05-11 1995-12-11 Nokia Mobile Phones Ltd Menetelmä puhesignaalin digitaaliseksi koodaamiseksi sekä puhekooderi menetelmän suorittamiseksi
FI95086C (fi) * 1992-11-26 1995-12-11 Nokia Mobile Phones Ltd Menetelmä puhesignaalin tehokkaaksi koodaamiseksi
JP3186290B2 (ja) * 1993-01-20 2001-07-11 ソニー株式会社 符号化方法、符号化装置、復号化装置及び記録媒体
JP3024468B2 (ja) * 1993-12-10 2000-03-21 日本電気株式会社 音声復号装置
JP2655063B2 (ja) * 1993-12-24 1997-09-17 日本電気株式会社 音声符号化装置
TW271524B (de) * 1994-08-05 1996-03-01 Qualcomm Inc
US5742734A (en) * 1994-08-10 1998-04-21 Qualcomm Incorporated Encoding rate selection in a variable rate vocoder
JP2861889B2 (ja) * 1995-10-18 1999-02-24 日本電気株式会社 音声パケット伝送システム
US5751901A (en) * 1996-07-31 1998-05-12 Qualcomm Incorporated Method for searching an excitation codebook in a code excited linear prediction (CELP) coder
US6131084A (en) * 1997-03-14 2000-10-10 Digital Voice Systems, Inc. Dual subframe quantization of spectral magnitudes
US6161089A (en) * 1997-03-14 2000-12-12 Digital Voice Systems, Inc. Multi-subframe quantization of spectral parameters
EP2040253B1 (de) * 2000-04-24 2012-04-11 Qualcomm Incorporated Prädikitve Dequantisierung von stimmhaften Sprachsignalen
GB2364870A (en) * 2000-07-13 2002-02-06 Motorola Inc Vector quantization system for speech encoding/decoding
DE10120231A1 (de) * 2001-04-19 2002-10-24 Deutsche Telekom Ag Verfahren und Anordnung zur einkanaligen Geräuschreduktion für gestörte Sprachsignale
CN107070854A (zh) * 2016-12-09 2017-08-18 西安华为技术有限公司 一种传输语音数据的方法、设备和装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5917839A (ja) * 1982-07-16 1984-01-30 Fuji Electric Co Ltd 外扇形回転電機
JPS6068400A (ja) * 1983-09-26 1985-04-18 沖電気工業株式会社 音声分析合成方法
JPS60116000A (ja) * 1983-11-28 1985-06-22 ケイディディ株式会社 音声符号化装置
JPS61289399A (ja) * 1985-06-17 1986-12-19 日本無線株式会社 音声合成器
JPS61289400A (ja) * 1985-06-17 1986-12-19 日本無線株式会社 音声分析合成装置
JPS62111300A (ja) * 1985-11-08 1987-05-22 松下電器産業株式会社 音声分析合成回路
JPS62234435A (ja) * 1986-04-04 1987-10-14 Kokusai Denshin Denwa Co Ltd <Kdd> 符号化音声の復号化方式
US4797925A (en) * 1986-09-26 1989-01-10 Bell Communications Research, Inc. Method for coding speech at low bit rates

Also Published As

Publication number Publication date
US5113448A (en) 1992-05-12
DE68913691T2 (de) 1994-06-16
JPH02168729A (ja) 1990-06-28
EP0375551A3 (en) 1990-09-26
EP0375551A2 (de) 1990-06-27
JP3033060B2 (ja) 2000-04-17
EP0375551B1 (de) 1994-03-09

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Representative=s name: PATENTANWAELTE KNOBLAUCH UND KNOBLAUCH, 60322 FRANK

8339 Ceased/non-payment of the annual fee