ATE165183T1 - Kodierer von audiosignalen mit niedriger verzögerung, unter verwendung von analyse-durch- synthese-techniken - Google Patents
Kodierer von audiosignalen mit niedriger verzögerung, unter verwendung von analyse-durch- synthese-technikenInfo
- Publication number
- ATE165183T1 ATE165183T1 AT93112293T AT93112293T ATE165183T1 AT E165183 T1 ATE165183 T1 AT E165183T1 AT 93112293 T AT93112293 T AT 93112293T AT 93112293 T AT93112293 T AT 93112293T AT E165183 T1 ATE165183 T1 AT E165183T1
- Authority
- AT
- Austria
- Prior art keywords
- analysis
- synthesis techniques
- coder
- audio signals
- delay audio
- Prior art date
Links
- 238000003786 synthesis reaction Methods 0.000 title abstract 3
- 230000015572 biosynthetic process Effects 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 230000005236 sound signal Effects 0.000 abstract 1
- 230000003595 spectral effect Effects 0.000 abstract 1
- 239000013598 vector Substances 0.000 abstract 1
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
- G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
- G10L19/0204—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 spectral analysis, e.g. transform vocoders or subband vocoders using subband decomposition
-
- 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
-
- 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
- G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
- G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders
-
- 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
- G10L2019/0001—Codebooks
- G10L2019/0003—Backward prediction of gain
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Computational Linguistics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Human Computer Interaction (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Analogue/Digital Conversion (AREA)
- Stereophonic System (AREA)
- Time-Division Multiplex Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITTO920658A IT1257065B (it) | 1992-07-31 | 1992-07-31 | Codificatore a basso ritardo per segnali audio, utilizzante tecniche di analisi per sintesi. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ATE165183T1 true ATE165183T1 (de) | 1998-05-15 |
Family
ID=11410652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT93112293T ATE165183T1 (de) | 1992-07-31 | 1993-07-30 | Kodierer von audiosignalen mit niedriger verzögerung, unter verwendung von analyse-durch- synthese-techniken |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US5321793A (de) |
| EP (1) | EP0582921B1 (de) |
| JP (1) | JPH0683395A (de) |
| AT (1) | ATE165183T1 (de) |
| CA (1) | CA2101700C (de) |
| DE (2) | DE69317958T2 (de) |
| ES (1) | ES2068172T3 (de) |
| GR (2) | GR950300011T1 (de) |
| IT (1) | IT1257065B (de) |
Families Citing this family (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0751496B1 (de) * | 1992-06-29 | 2000-04-19 | Nippon Telegraph And Telephone Corporation | Verfahren und Vorrichtung zur Sprachkodierung |
| WO1994025959A1 (en) * | 1993-04-29 | 1994-11-10 | Unisearch Limited | Use of an auditory model to improve quality or lower the bit rate of speech synthesis systems |
| US5550543A (en) * | 1994-10-14 | 1996-08-27 | Lucent Technologies Inc. | Frame erasure or packet loss compensation method |
| FR2734389B1 (fr) * | 1995-05-17 | 1997-07-18 | Proust Stephane | Procede d'adaptation du niveau de masquage du bruit dans un codeur de parole a analyse par synthese utilisant un filtre de ponderation perceptuelle a court terme |
| JP3680380B2 (ja) * | 1995-10-26 | 2005-08-10 | ソニー株式会社 | 音声符号化方法及び装置 |
| FR2742568B1 (fr) * | 1995-12-15 | 1998-02-13 | Catherine Quinquis | Procede d'analyse par prediction lineaire d'un signal audiofrequence, et procedes de codage et de decodage d'un signal audiofrequence en comportant application |
| JP3092653B2 (ja) * | 1996-06-21 | 2000-09-25 | 日本電気株式会社 | 広帯域音声符号化装置及び音声復号装置並びに音声符号化復号装置 |
| US5751901A (en) * | 1996-07-31 | 1998-05-12 | Qualcomm Incorporated | Method for searching an excitation codebook in a code excited linear prediction (CELP) coder |
| GB2318029B (en) * | 1996-10-01 | 2000-11-08 | Nokia Mobile Phones Ltd | Audio coding method and apparatus |
| JP3266178B2 (ja) * | 1996-12-18 | 2002-03-18 | 日本電気株式会社 | 音声符号化装置 |
| EP0878790A1 (de) * | 1997-05-15 | 1998-11-18 | Hewlett-Packard Company | Sprachkodiersystem und Verfahren |
| SE9903553D0 (sv) | 1999-01-27 | 1999-10-01 | Lars Liljeryd | Enhancing percepptual performance of SBR and related coding methods by adaptive noise addition (ANA) and noise substitution limiting (NSL) |
| FI116992B (fi) | 1999-07-05 | 2006-04-28 | Nokia Corp | Menetelmät, järjestelmä ja laitteet audiosignaalin koodauksen ja siirron tehostamiseksi |
| US7260523B2 (en) * | 1999-12-21 | 2007-08-21 | Texas Instruments Incorporated | Sub-band speech coding system |
| SE0001926D0 (sv) | 2000-05-23 | 2000-05-23 | Lars Liljeryd | Improved spectral translation/folding in the subband domain |
| US7050545B2 (en) * | 2001-04-12 | 2006-05-23 | Tallabs Operations, Inc. | Methods and apparatus for echo cancellation using an adaptive lattice based non-linear processor |
| SE0202159D0 (sv) | 2001-07-10 | 2002-07-09 | Coding Technologies Sweden Ab | Efficientand scalable parametric stereo coding for low bitrate applications |
| US8605911B2 (en) | 2001-07-10 | 2013-12-10 | Dolby International Ab | Efficient and scalable parametric stereo coding for low bitrate audio coding applications |
| PT1423847E (pt) | 2001-11-29 | 2005-05-31 | Coding Tech Ab | Reconstrucao de componentes de frequencia elevada |
| SE0202770D0 (sv) | 2002-09-18 | 2002-09-18 | Coding Technologies Sweden Ab | Method for reduction of aliasing introduces by spectral envelope adjustment in real-valued filterbanks |
| US7619995B1 (en) * | 2003-07-18 | 2009-11-17 | Nortel Networks Limited | Transcoders and mixers for voice-over-IP conferencing |
| EP1851866B1 (de) * | 2005-02-23 | 2011-08-17 | Telefonaktiebolaget LM Ericsson (publ) | Adaptive bitzuweisung für die mehrkanal-audiokodierung |
| CN101627426B (zh) * | 2007-03-05 | 2013-03-13 | 艾利森电话股份有限公司 | 用于控制稳态背景噪声的平滑的方法和设备 |
| CA2704812C (en) * | 2007-11-06 | 2016-05-17 | Nokia Corporation | An encoder for encoding an audio signal |
| US20100250260A1 (en) * | 2007-11-06 | 2010-09-30 | Lasse Laaksonen | Encoder |
| AU2009220341B2 (en) * | 2008-03-04 | 2011-09-22 | Lg Electronics Inc. | Method and apparatus for processing an audio signal |
| BRPI0915358B1 (pt) * | 2008-06-13 | 2020-04-22 | Nokia Corp | método e aparelho para a ocultação de erro de quadro em dados de áudio codificados usando codificação de extensão |
| SG10201406778VA (en) | 2009-10-20 | 2015-01-29 | Fraunhofer Ges Forschung | Multi-mode audio codec and celp coding adapted therefore |
| US20120029926A1 (en) | 2010-07-30 | 2012-02-02 | Qualcomm Incorporated | Systems, methods, apparatus, and computer-readable media for dependent-mode coding of audio signals |
| US9208792B2 (en) | 2010-08-17 | 2015-12-08 | Qualcomm Incorporated | Systems, methods, apparatus, and computer-readable media for noise injection |
| US9583115B2 (en) * | 2014-06-26 | 2017-02-28 | Qualcomm Incorporated | Temporal gain adjustment based on high-band signal characteristic |
| RU2665916C2 (ru) | 2014-07-29 | 2018-09-04 | Телефонактиеболагет Лм Эрикссон (Пабл) | Оценивание фонового шума в аудиосигналах |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5921039U (ja) * | 1982-07-30 | 1984-02-08 | いすゞ自動車株式会社 | 内燃機関 |
| JPS6097743A (ja) * | 1983-11-02 | 1985-05-31 | Canon Inc | 適応型線形予測装置 |
| CA2005115C (en) * | 1989-01-17 | 1997-04-22 | Juin-Hwey Chen | Low-delay code-excited linear predictive coder for speech or audio |
| JPH02214899A (ja) * | 1989-02-15 | 1990-08-27 | Matsushita Electric Ind Co Ltd | 音声符号化装置 |
| IT1232084B (it) * | 1989-05-03 | 1992-01-23 | Cselt Centro Studi Lab Telecom | Sistema di codifica per segnali audio a banda allargata |
| JP2939999B2 (ja) * | 1989-05-24 | 1999-08-25 | 日本電気株式会社 | 可変長フレーム型ボコーダ |
| IT1241358B (it) * | 1990-12-20 | 1994-01-10 | Sip | Sistema di codifica del segnale vocale con sottocodice annidato |
| US5233660A (en) * | 1991-09-10 | 1993-08-03 | At&T Bell Laboratories | Method and apparatus for low-delay celp speech coding and decoding |
-
1992
- 1992-07-31 IT ITTO920658A patent/IT1257065B/it active IP Right Grant
-
1993
- 1993-05-21 US US08/065,990 patent/US5321793A/en not_active Expired - Fee Related
- 1993-06-15 JP JP5167370A patent/JPH0683395A/ja active Pending
- 1993-07-30 AT AT93112293T patent/ATE165183T1/de active
- 1993-07-30 DE DE69317958T patent/DE69317958T2/de not_active Expired - Fee Related
- 1993-07-30 EP EP93112293A patent/EP0582921B1/de not_active Expired - Lifetime
- 1993-07-30 ES ES93112293T patent/ES2068172T3/es not_active Expired - Lifetime
- 1993-07-30 CA CA002101700A patent/CA2101700C/en not_active Expired - Fee Related
- 1993-07-30 DE DE0582921T patent/DE582921T1/de active Pending
-
1995
- 1995-03-31 GR GR950300011T patent/GR950300011T1/el unknown
-
1998
- 1998-04-16 GR GR980400728T patent/GR3026673T3/el unknown
Also Published As
| Publication number | Publication date |
|---|---|
| ITTO920658A0 (it) | 1992-07-31 |
| DE69317958D1 (de) | 1998-05-20 |
| GR3026673T3 (en) | 1998-07-31 |
| JPH0683395A (ja) | 1994-03-25 |
| DE582921T1 (de) | 1995-06-08 |
| CA2101700C (en) | 1997-02-25 |
| GR950300011T1 (en) | 1995-03-31 |
| ITTO920658A1 (it) | 1994-01-31 |
| EP0582921A3 (de) | 1995-01-04 |
| CA2101700A1 (en) | 1994-02-01 |
| EP0582921B1 (de) | 1998-04-15 |
| EP0582921A2 (de) | 1994-02-16 |
| ES2068172T3 (es) | 1998-06-01 |
| DE69317958T2 (de) | 1998-09-17 |
| ES2068172T1 (es) | 1995-04-16 |
| US5321793A (en) | 1994-06-14 |
| IT1257065B (it) | 1996-01-05 |
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