DE68911287T2 - Codierer/decodierer. - Google Patents
Codierer/decodierer.Info
- Publication number
- DE68911287T2 DE68911287T2 DE89907260T DE68911287T DE68911287T2 DE 68911287 T2 DE68911287 T2 DE 68911287T2 DE 89907260 T DE89907260 T DE 89907260T DE 68911287 T DE68911287 T DE 68911287T DE 68911287 T2 DE68911287 T2 DE 68911287T2
- Authority
- DE
- Germany
- Prior art keywords
- information
- vocal tract
- pct
- quality
- 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 - Lifetime
Links
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
- G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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)
- Physics & Mathematics (AREA)
- Computational Linguistics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14134388 | 1988-06-08 | ||
JP6153389 | 1989-03-14 | ||
PCT/JP1989/000580 WO1989012292A1 (en) | 1988-06-08 | 1989-06-07 | Encoder/decoder apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
DE68911287D1 DE68911287D1 (de) | 1994-01-20 |
DE68911287T2 true DE68911287T2 (de) | 1994-05-05 |
Family
ID=26402573
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE89907260T Expired - Lifetime DE68911287T2 (de) | 1988-06-08 | 1989-06-07 | Codierer/decodierer. |
Country Status (6)
Country | Link |
---|---|
US (1) | US5115469A (de) |
EP (1) | EP0379587B1 (de) |
JP (1) | JP2964344B2 (de) |
CA (1) | CA1329274C (de) |
DE (1) | DE68911287T2 (de) |
WO (1) | WO1989012292A1 (de) |
Families Citing this family (42)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5271089A (en) * | 1990-11-02 | 1993-12-14 | Nec Corporation | Speech parameter encoding method capable of transmitting a spectrum parameter at a reduced number of bits |
DE4211945C1 (de) * | 1992-04-09 | 1993-05-19 | Institut Fuer Rundfunktechnik Gmbh, 8000 Muenchen, De | |
CA2094319C (en) * | 1992-04-21 | 1998-08-18 | Yoshihiro Unno | Speech signal encoder/decoder device in mobile communication |
US5513297A (en) * | 1992-07-10 | 1996-04-30 | At&T Corp. | Selective application of speech coding techniques to input signal segments |
US5278944A (en) * | 1992-07-15 | 1994-01-11 | Kokusai Electric Co., Ltd. | Speech coding circuit |
DE4231918C1 (de) * | 1992-09-24 | 1993-12-02 | Ant Nachrichtentech | Verfahren für die Codierung von Sprachsignalen |
JP2655063B2 (ja) * | 1993-12-24 | 1997-09-17 | 日本電気株式会社 | 音声符号化装置 |
KR970005131B1 (ko) * | 1994-01-18 | 1997-04-12 | 대우전자 주식회사 | 인간의 청각특성에 적응적인 디지탈 오디오 부호화장치 |
FI98163C (fi) * | 1994-02-08 | 1997-04-25 | Nokia Mobile Phones Ltd | Koodausjärjestelmä parametriseen puheenkoodaukseen |
US6134521A (en) * | 1994-02-17 | 2000-10-17 | Motorola, Inc. | Method and apparatus for mitigating audio degradation in a communication system |
FI96650C (fi) * | 1994-07-11 | 1996-07-25 | Nokia Telecommunications Oy | Menetelmä ja laitteisto puheen välittämiseksi tietoliikennejärjestelmässä |
JP3557255B2 (ja) * | 1994-10-18 | 2004-08-25 | 松下電器産業株式会社 | Lspパラメータ復号化装置及び復号化方法 |
EP0737959A4 (de) * | 1994-10-28 | 1999-05-06 | Nippon Steel Corp | Vorrichtung zum dekodieren von kodierten daten und diese verwendende vorrichtung zum dekodieren von multiplexierten audio/video daten |
US5864797A (en) * | 1995-05-30 | 1999-01-26 | Sanyo Electric Co., Ltd. | Pitch-synchronous speech coding by applying multiple analysis to select and align a plurality of types of code vectors |
CA2247427C (en) * | 1996-03-27 | 2001-06-05 | Motorola, Inc. | Method and apparatus for providing a multi-party speech connection for use in a wireless communication system |
US5799272A (en) * | 1996-07-01 | 1998-08-25 | Ess Technology, Inc. | Switched multiple sequence excitation model for low bit rate speech compression |
FI964975A (fi) * | 1996-12-12 | 1998-06-13 | Nokia Mobile Phones Ltd | Menetelmä ja laite puheen koodaamiseksi |
FI116181B (fi) | 1997-02-07 | 2005-09-30 | Nokia Corp | Virheenkorjausta ja virheentunnistusta hyödyntävä informaationkoodausm enetelmä ja laitteet |
ES2373968T3 (es) * | 1997-02-10 | 2012-02-10 | Koninklijke Philips Electronics N.V. | Red de comunicación para transmitir señales de voz. |
US6363339B1 (en) | 1997-10-10 | 2002-03-26 | Nortel Networks Limited | Dynamic vocoder selection for storing and forwarding voice signals |
US6104991A (en) * | 1998-02-27 | 2000-08-15 | Lucent Technologies, Inc. | Speech encoding and decoding system which modifies encoding and decoding characteristics based on an audio signal |
US7457415B2 (en) | 1998-08-20 | 2008-11-25 | Akikaze Technologies, Llc | Secure information distribution system utilizing information segment scrambling |
US6463410B1 (en) * | 1998-10-13 | 2002-10-08 | Victor Company Of Japan, Ltd. | Audio signal processing apparatus |
US6496797B1 (en) * | 1999-04-01 | 2002-12-17 | Lg Electronics Inc. | Apparatus and method of speech coding and decoding using multiple frames |
JP2002162998A (ja) * | 2000-11-28 | 2002-06-07 | Fujitsu Ltd | パケット修復処理を伴なう音声符号化方法 |
DE60029147T2 (de) * | 2000-12-29 | 2007-05-31 | Nokia Corp. | Qualitätsverbesserung eines audiosignals in einem digitalen netzwerk |
US7076316B2 (en) * | 2001-02-02 | 2006-07-11 | Nortel Networks Limited | Method and apparatus for controlling an operative setting of a communications link |
US20030195006A1 (en) * | 2001-10-16 | 2003-10-16 | Choong Philip T. | Smart vocoder |
US20030101407A1 (en) * | 2001-11-09 | 2003-05-29 | Cute Ltd. | Selectable complexity turbo coding system |
JP3898184B2 (ja) * | 2001-12-25 | 2007-03-28 | 株式会社エヌ・ティ・ティ・ドコモ | 信号符号化装置、信号符号化方法、プログラム |
JP4208533B2 (ja) * | 2002-09-19 | 2009-01-14 | キヤノン株式会社 | 画像処理装置及び画像処理方法 |
DE10255687B4 (de) * | 2002-11-28 | 2011-08-11 | Lantiq Deutschland GmbH, 85579 | Verfahren zur Verringerung des Crestfaktors eines Multiträgersignals |
US7996234B2 (en) * | 2003-08-26 | 2011-08-09 | Akikaze Technologies, Llc | Method and apparatus for adaptive variable bit rate audio encoding |
US7567897B2 (en) * | 2004-08-12 | 2009-07-28 | International Business Machines Corporation | Method for dynamic selection of optimized codec for streaming audio content |
US7684981B2 (en) * | 2005-07-15 | 2010-03-23 | Microsoft Corporation | Prediction of spectral coefficients in waveform coding and decoding |
CN101390158B (zh) * | 2006-02-24 | 2012-03-14 | 法国电信公司 | 量化索引的编码方法、解码信号包络方法、编解码模块 |
US8050932B2 (en) * | 2008-02-20 | 2011-11-01 | Research In Motion Limited | Apparatus, and associated method, for selecting speech COder operational rates |
WO2009132662A1 (en) * | 2008-04-28 | 2009-11-05 | Nokia Corporation | Encoding/decoding for improved frequency response |
CN102239518B (zh) * | 2009-03-27 | 2012-11-21 | 华为技术有限公司 | 编码和解码方法及装置 |
JP5746974B2 (ja) * | 2009-11-13 | 2015-07-08 | パナソニック インテレクチュアル プロパティ コーポレーション オブアメリカPanasonic Intellectual Property Corporation of America | 符号化装置、復号装置およびこれらの方法 |
GB0920729D0 (en) * | 2009-11-26 | 2010-01-13 | Icera Inc | Signal fading |
CN112802485B (zh) * | 2021-04-12 | 2021-07-02 | 腾讯科技(深圳)有限公司 | 语音数据处理方法、装置、计算机设备及存储介质 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE562784A (de) * | 1956-11-30 | |||
US3903366A (en) * | 1974-04-23 | 1975-09-02 | Us Navy | Application of simultaneous voice/unvoice excitation in a channel vocoder |
IT1021020B (it) * | 1974-05-27 | 1978-01-30 | Telettra Lab Telefon | Sistema e dispositivi di comunica zione con segnali codificati p.c.m. a ridondanza ridotta |
US4303803A (en) * | 1978-08-31 | 1981-12-01 | Kokusai Denshin Denwa Co., Ltd. | Digital speech interpolation system |
JPS59172690A (ja) * | 1983-03-22 | 1984-09-29 | 日本電気株式会社 | ボコ−ダ |
JPS6067999A (ja) * | 1983-09-22 | 1985-04-18 | 日本電気株式会社 | 音声分析合成装置 |
US4546342A (en) * | 1983-12-14 | 1985-10-08 | Digital Recording Research Limited Partnership | Data compression method and apparatus |
US4622680A (en) * | 1984-10-17 | 1986-11-11 | General Electric Company | Hybrid subband coder/decoder method and apparatus |
JPS623535A (ja) * | 1985-06-28 | 1987-01-09 | Fujitsu Ltd | 符号化伝送装置 |
-
1989
- 1989-06-07 DE DE89907260T patent/DE68911287T2/de not_active Expired - Lifetime
- 1989-06-07 EP EP89907260A patent/EP0379587B1/de not_active Expired - Lifetime
- 1989-06-07 WO PCT/JP1989/000580 patent/WO1989012292A1/en active IP Right Grant
- 1989-06-07 CA CA000601982A patent/CA1329274C/en not_active Expired - Lifetime
- 1989-06-07 US US07/460,099 patent/US5115469A/en not_active Expired - Lifetime
- 1989-06-07 JP JP1506723A patent/JP2964344B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH02502491A (ja) | 1990-08-09 |
CA1329274C (en) | 1994-05-03 |
EP0379587B1 (de) | 1993-12-08 |
WO1989012292A1 (en) | 1989-12-14 |
US5115469A (en) | 1992-05-19 |
DE68911287D1 (de) | 1994-01-20 |
EP0379587A1 (de) | 1990-08-01 |
JP2964344B2 (ja) | 1999-10-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |