FI921250A0 - Puhesignaalin laadun parannusmenetelmä lineaarista ennustusta käyttävään koodausjärjestelmään - Google Patents
Puhesignaalin laadun parannusmenetelmä lineaarista ennustusta käyttävään koodausjärjestelmäänInfo
- Publication number
- FI921250A0 FI921250A0 FI921250A FI921250A FI921250A0 FI 921250 A0 FI921250 A0 FI 921250A0 FI 921250 A FI921250 A FI 921250A FI 921250 A FI921250 A FI 921250A FI 921250 A0 FI921250 A0 FI 921250A0
- Authority
- FI
- Finland
- Prior art keywords
- improving
- quality
- speech signal
- linear prediction
- coding system
- Prior art date
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
- G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (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)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI921250A FI90477C (fi) | 1992-03-23 | 1992-03-23 | Puhesignaalin laadun parannusmenetelmä lineaarista ennustusta käyttävään koodausjärjestelmään |
DE69329568T DE69329568T2 (de) | 1992-03-23 | 1993-03-19 | Verfahren zur Sprachkodierung |
EP93302099A EP0562777B1 (en) | 1992-03-23 | 1993-03-19 | Method of speech coding |
DK93302099T DK0562777T3 (da) | 1992-03-23 | 1993-03-19 | Fremgangsmåde til kodning af tale |
US08/036,544 US5432884A (en) | 1992-03-23 | 1993-03-22 | Method and apparatus for decoding LPC-encoded speech using a median filter modification of LPC filter factors to compensate for transmission errors |
AU35376/93A AU666172B2 (en) | 1992-03-23 | 1993-03-23 | Method for improving the quality of a speech signal in a coding system using linear predictive coding |
JP5064011A JPH0612099A (ja) | 1992-03-23 | 1993-03-23 | 線形予測符号化を用いた符号化方式における音声信号の質を改善するための方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI921250 | 1992-03-23 | ||
FI921250A FI90477C (fi) | 1992-03-23 | 1992-03-23 | Puhesignaalin laadun parannusmenetelmä lineaarista ennustusta käyttävään koodausjärjestelmään |
Publications (3)
Publication Number | Publication Date |
---|---|
FI921250A0 true FI921250A0 (fi) | 1992-03-23 |
FI90477B FI90477B (fi) | 1993-10-29 |
FI90477C FI90477C (fi) | 1994-02-10 |
Family
ID=8534969
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI921250A FI90477C (fi) | 1992-03-23 | 1992-03-23 | Puhesignaalin laadun parannusmenetelmä lineaarista ennustusta käyttävään koodausjärjestelmään |
Country Status (7)
Country | Link |
---|---|
US (1) | US5432884A (fi) |
EP (1) | EP0562777B1 (fi) |
JP (1) | JPH0612099A (fi) |
AU (1) | AU666172B2 (fi) |
DE (1) | DE69329568T2 (fi) |
DK (1) | DK0562777T3 (fi) |
FI (1) | FI90477C (fi) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI95086C (fi) * | 1992-11-26 | 1995-12-11 | Nokia Mobile Phones Ltd | Menetelmä puhesignaalin tehokkaaksi koodaamiseksi |
FI96248C (fi) * | 1993-05-06 | 1996-05-27 | Nokia Mobile Phones Ltd | Menetelmä pitkän aikavälin synteesisuodattimen toteuttamiseksi sekä synteesisuodatin puhekoodereihin |
FI94810C (fi) * | 1993-10-11 | 1995-10-25 | Nokia Mobile Phones Ltd | Menetelmä huonon GSM-puhekehyksen tunnistamiseksi |
FI98164C (fi) * | 1994-01-24 | 1997-04-25 | Nokia Mobile Phones Ltd | Puhekooderin parametrien käsittely tietoliikennejärjestelmän vastaanottimessa |
EP0706172A1 (en) * | 1994-10-04 | 1996-04-10 | Hughes Aircraft Company | Low bit rate speech encoder and decoder |
JP3235703B2 (ja) * | 1995-03-10 | 2001-12-04 | 日本電信電話株式会社 | ディジタルフィルタのフィルタ係数決定方法 |
WO1996037964A1 (en) * | 1995-05-22 | 1996-11-28 | Ntt Mobile Communications Network Inc. | Sound decoding device |
JP3137176B2 (ja) * | 1995-12-06 | 2001-02-19 | 日本電気株式会社 | 音声符号化装置 |
DE19641619C1 (de) * | 1996-10-09 | 1997-06-26 | Nokia Mobile Phones Ltd | Verfahren zur Synthese eines Rahmens eines Sprachsignals |
US5900006A (en) * | 1996-12-23 | 1999-05-04 | Daewoo Electronics Co., Ltd. | Median filtering method and apparatus using a plurality of processing elements |
US6954745B2 (en) | 2000-06-02 | 2005-10-11 | Canon Kabushiki Kaisha | Signal processing system |
US7072833B2 (en) * | 2000-06-02 | 2006-07-04 | Canon Kabushiki Kaisha | Speech processing system |
US20020026253A1 (en) * | 2000-06-02 | 2002-02-28 | Rajan Jebu Jacob | Speech processing apparatus |
US7010483B2 (en) * | 2000-06-02 | 2006-03-07 | Canon Kabushiki Kaisha | Speech processing system |
US7035790B2 (en) * | 2000-06-02 | 2006-04-25 | Canon Kabushiki Kaisha | Speech processing system |
US7983922B2 (en) * | 2005-04-15 | 2011-07-19 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Apparatus and method for generating multi-channel synthesizer control signal and apparatus and method for multi-channel synthesizing |
US8365986B2 (en) | 2006-03-14 | 2013-02-05 | Perry Securities Llc | Credit card security system and method |
KR101592968B1 (ko) | 2008-07-10 | 2016-02-11 | 보이세지 코포레이션 | 수퍼-프레임의 lpc 필터들을 양자화 및 역 양자화하기 위한 장치 및 방법 |
Family Cites Families (30)
Publication number | Priority date | Publication date | Assignee | Title |
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DE1177267B (de) * | 1960-02-13 | 1964-09-03 | Basf Ag | Verfahren zur Herstellung von Farbstoffen der Tetrazaporphinreihe |
SE433998B (sv) * | 1977-10-11 | 1984-06-25 | Carl Erik Wilhelm Sundberg | Anordning vid signalmottagare for att kompensera digitala fel i overford digital signal |
US4587620A (en) * | 1981-05-09 | 1986-05-06 | Nippon Gakki Seizo Kabushiki Kaisha | Noise elimination device |
EP0139803B1 (fr) * | 1983-10-28 | 1987-10-14 | International Business Machines Corporation | Procédé de reconstitution d'informations perdues dans un système de transmission numérique de la voix et système de transmission utilisant ledit procédé |
NL8304214A (nl) * | 1983-12-07 | 1985-07-01 | Philips Nv | Werkwijze voor het korrigeren van foute waarden van monsters van een equidistant bemonsterd signaal en inrichting voor het uitvoeren van de werkwijze. |
US4625240A (en) * | 1984-07-25 | 1986-11-25 | Eeco, Inc. | Adaptive automatic gain control |
IT1179803B (it) * | 1984-10-30 | 1987-09-16 | Cselt Centro Studi Lab Telecom | Metodo e dispositivo per la correzione di errori causati da rumore di tipo impulsivo su segnali vocali codificati con bassa velocita di ci fra e trasmessi su canali di comunicazione radio |
NL8500843A (nl) * | 1985-03-22 | 1986-10-16 | Koninkl Philips Electronics Nv | Multipuls-excitatie lineair-predictieve spraakcoder. |
JPS6259420A (ja) * | 1985-09-09 | 1987-03-16 | Toshiba Corp | デジタルクランプ回路 |
GB2182795B (en) * | 1985-11-12 | 1988-10-05 | Nat Res Dev | Apparatus and methods for speech analysis |
US4682230A (en) * | 1986-03-21 | 1987-07-21 | Rca Corporation | Adaptive median filter system |
US4843615A (en) * | 1987-05-08 | 1989-06-27 | Harris Corp. | CPFSK communication system employing nyquist-filtered modulator/demodulator |
US4910781A (en) * | 1987-06-26 | 1990-03-20 | At&T Bell Laboratories | Code excited linear predictive vocoder using virtual searching |
EP0301282A1 (de) * | 1987-07-31 | 1989-02-01 | BBC Brown Boveri AG | Signalübertragungsverfahren |
JPH02500620A (ja) * | 1987-08-28 | 1990-03-01 | ブリテツシユ・テレコミユニケイシヨンズ・パブリツク・リミテツド・カンパニー | コード化通信システム |
IL84948A0 (en) * | 1987-12-25 | 1988-06-30 | D S P Group Israel Ltd | Noise reduction system |
JP2648848B2 (ja) * | 1988-07-12 | 1997-09-03 | クラリオン株式会社 | スペクトラム拡散受信機における相関パルス発生回路 |
US4910467A (en) * | 1988-11-02 | 1990-03-20 | Motorola, Inc. | Method and apparatus for decoding a quadrature modulated signal |
US4906928A (en) * | 1988-12-29 | 1990-03-06 | Atlantic Richfield Company | Transient electromagnetic apparatus with receiver having digitally controlled gain ranging amplifier for detecting irregularities on conductive containers |
CA2005115C (en) * | 1989-01-17 | 1997-04-22 | Juin-Hwey Chen | Low-delay code-excited linear predictive coder for speech or audio |
US4972430A (en) * | 1989-03-06 | 1990-11-20 | Raytheon Company | Spread spectrum signal detector |
US4928258A (en) * | 1989-05-08 | 1990-05-22 | The United States Of America As Represented By The Secretary Of The Air Force | Recursive median filtering |
US5271042A (en) * | 1989-10-13 | 1993-12-14 | Motorola, Inc. | Soft decision decoding with channel equalization |
US5097507A (en) * | 1989-12-22 | 1992-03-17 | General Electric Company | Fading bit error protection for digital cellular multi-pulse speech coder |
US5148487A (en) * | 1990-02-26 | 1992-09-15 | Matsushita Electric Industrial Co., Ltd. | Audio subband encoded signal decoder |
GB2243733A (en) * | 1990-05-01 | 1991-11-06 | Orbitel Mobile Communications | Gain control based on average amplitude of i/p signal |
JP3102015B2 (ja) * | 1990-05-28 | 2000-10-23 | 日本電気株式会社 | 音声復号化方法 |
US5142551A (en) * | 1991-02-28 | 1992-08-25 | Motorola, Inc. | Signal weighting system for digital receiver |
US5285480A (en) * | 1991-09-03 | 1994-02-08 | General Electric Company | Adaptive MLSE-VA receiver for digital cellular radio |
US5235424A (en) * | 1992-02-06 | 1993-08-10 | General Electric Company | Automatic gain control system for a high definition television signal receiver |
-
1992
- 1992-03-23 FI FI921250A patent/FI90477C/fi active
-
1993
- 1993-03-19 DE DE69329568T patent/DE69329568T2/de not_active Expired - Lifetime
- 1993-03-19 DK DK93302099T patent/DK0562777T3/da active
- 1993-03-19 EP EP93302099A patent/EP0562777B1/en not_active Expired - Lifetime
- 1993-03-22 US US08/036,544 patent/US5432884A/en not_active Expired - Lifetime
- 1993-03-23 JP JP5064011A patent/JPH0612099A/ja active Pending
- 1993-03-23 AU AU35376/93A patent/AU666172B2/en not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
EP0562777B1 (en) | 2000-10-18 |
AU666172B2 (en) | 1996-02-01 |
AU3537693A (en) | 1993-09-30 |
DK0562777T3 (da) | 2001-01-02 |
DE69329568T2 (de) | 2001-05-31 |
EP0562777A1 (en) | 1993-09-29 |
DE69329568D1 (de) | 2000-11-23 |
FI90477B (fi) | 1993-10-29 |
US5432884A (en) | 1995-07-11 |
JPH0612099A (ja) | 1994-01-21 |
FI90477C (fi) | 1994-02-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
HC | Name/ company changed in application |
Owner name: NOKIA MATKAPUHELIMET OY |
|
BB | Publication of examined application |