DK1408484T3 - Forbedring af perceptuel af SBR (spektralbåndreplikation) og HFR (höjfrekvensrekonstruktion) kodefremgangsmåder ved adaptiv basisstöjaddition og stöjsubstitutionsbegrænsning - Google Patents
Forbedring af perceptuel af SBR (spektralbåndreplikation) og HFR (höjfrekvensrekonstruktion) kodefremgangsmåder ved adaptiv basisstöjaddition og stöjsubstitutionsbegrænsningInfo
- Publication number
- DK1408484T3 DK1408484T3 DK04000445T DK04000445T DK1408484T3 DK 1408484 T3 DK1408484 T3 DK 1408484T3 DK 04000445 T DK04000445 T DK 04000445T DK 04000445 T DK04000445 T DK 04000445T DK 1408484 T3 DK1408484 T3 DK 1408484T3
- Authority
- DK
- Denmark
- Prior art keywords
- noise
- hfr
- high frequency
- sbr
- limitation
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 3
- 230000003044 adaptive effect Effects 0.000 title abstract 2
- 230000010076 replication Effects 0.000 title 1
- 230000003595 spectral effect Effects 0.000 title 1
- 238000006467 substitution reaction Methods 0.000 title 1
- 230000003321 amplification Effects 0.000 abstract 1
- 238000009499 grossing Methods 0.000 abstract 1
- 238000003199 nucleic acid amplification method Methods 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
- G10L19/028—Noise substitution, i.e. substituting non-tonal spectral components by noisy source
-
- 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
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
-
- 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
- G10L19/26—Pre-filtering or post-filtering
-
- 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
- G10L19/26—Pre-filtering or post-filtering
- G10L19/265—Pre-filtering, e.g. high frequency emphasis prior to encoding
-
- 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
- G10L19/032—Quantisation or dequantisation of spectral components
- G10L19/035—Scalar quantisation
-
- 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
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
- G10L25/18—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being spectral information of each sub-band
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Multimedia (AREA)
- Computational Linguistics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Acoustics & Sound (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Quality & Reliability (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Networks Using Active Elements (AREA)
- Stereo-Broadcasting Methods (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Stereophonic System (AREA)
- Noise Elimination (AREA)
- Building Environments (AREA)
- Road Paving Structures (AREA)
- Executing Machine-Instructions (AREA)
- Tires In General (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Battery Electrode And Active Subsutance (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9900256A SE9900256D0 (sv) | 1999-01-27 | 1999-01-27 | Metod och anordning för förbättring av effektivitet och ljudkvalitet hos ljudkodare |
SE9903553A SE9903553D0 (sv) | 1999-01-27 | 1999-10-01 | Enhancing percepptual performance of SBR and related coding methods by adaptive noise addition (ANA) and noise substitution limiting (NSL) |
Publications (1)
Publication Number | Publication Date |
---|---|
DK1408484T3 true DK1408484T3 (da) | 2006-01-30 |
Family
ID=26663489
Family Applications (5)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK00904174T DK1157374T3 (da) | 1999-01-27 | 2000-01-26 | Forbedring af perceptuel præstation af SBR og beslægtede HFR-kodefremgangsmåder ved adaptiv basisstöjaddition og stöjsubstitutionsbegrænsning |
DK08000694.3T DK1914728T3 (da) | 1999-01-27 | 2000-01-26 | Fremgangsmåde og apparat til dekodning af et signal under anvendelse af spektralbåndreplikation og interpolation af skalafaktorer |
DK08000695.0T DK1914729T3 (da) | 1999-01-27 | 2000-01-26 | Apparat og fremgangsmåde til justering af den spektrale indhyllingskurve af et højfrekvensrekonstrueret signal |
DK04000445T DK1408484T3 (da) | 1999-01-27 | 2000-01-26 | Forbedring af perceptuel af SBR (spektralbåndreplikation) og HFR (höjfrekvensrekonstruktion) kodefremgangsmåder ved adaptiv basisstöjaddition og stöjsubstitutionsbegrænsning |
DK05020588T DK1617418T3 (da) | 1999-01-27 | 2000-01-26 | Audiokodningsfremgangsmåder og -apparater til spektralbåndreplikation og höjfrekvensrekonstruktion under anvendelse af adaptiv basisstöj og stöjsubstitutionsbegrænsning |
Family Applications Before (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK00904174T DK1157374T3 (da) | 1999-01-27 | 2000-01-26 | Forbedring af perceptuel præstation af SBR og beslægtede HFR-kodefremgangsmåder ved adaptiv basisstöjaddition og stöjsubstitutionsbegrænsning |
DK08000694.3T DK1914728T3 (da) | 1999-01-27 | 2000-01-26 | Fremgangsmåde og apparat til dekodning af et signal under anvendelse af spektralbåndreplikation og interpolation af skalafaktorer |
DK08000695.0T DK1914729T3 (da) | 1999-01-27 | 2000-01-26 | Apparat og fremgangsmåde til justering af den spektrale indhyllingskurve af et højfrekvensrekonstrueret signal |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK05020588T DK1617418T3 (da) | 1999-01-27 | 2000-01-26 | Audiokodningsfremgangsmåder og -apparater til spektralbåndreplikation og höjfrekvensrekonstruktion under anvendelse af adaptiv basisstöj og stöjsubstitutionsbegrænsning |
Country Status (15)
Country | Link |
---|---|
US (11) | US6708145B1 (de) |
EP (5) | EP1157374B1 (de) |
JP (7) | JP3603026B2 (de) |
CN (6) | CN1838238B (de) |
AT (5) | ATE395688T1 (de) |
AU (1) | AU2585700A (de) |
BR (4) | BRPI0009138B1 (de) |
DE (5) | DE60013785T2 (de) |
DK (5) | DK1157374T3 (de) |
ES (5) | ES2254992T3 (de) |
HK (6) | HK1053534A1 (de) |
PT (4) | PT1617418E (de) |
RU (1) | RU2226032C2 (de) |
SE (1) | SE9903553D0 (de) |
WO (1) | WO2000045379A2 (de) |
Families Citing this family (181)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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) |
US7742927B2 (en) | 2000-04-18 | 2010-06-22 | France Telecom | Spectral enhancing method and device |
FR2807897B1 (fr) * | 2000-04-18 | 2003-07-18 | France Telecom | Methode et dispositif d'enrichissement spectral |
SE0001926D0 (sv) | 2000-05-23 | 2000-05-23 | Lars Liljeryd | Improved spectral translation/folding in the subband domain |
SE0004163D0 (sv) | 2000-11-14 | 2000-11-14 | Coding Technologies Sweden Ab | Enhancing perceptual performance of high frequency reconstruction coding methods by adaptive filtering |
SE0004818D0 (sv) | 2000-12-22 | 2000-12-22 | Coding Technologies Sweden Ab | Enhancing source coding systems by adaptive transposition |
KR100830857B1 (ko) * | 2001-01-19 | 2008-05-22 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 오디오 전송 시스템, 오디오 수신기, 전송 방법, 수신 방법 및 음성 디코더 |
FR2821501B1 (fr) * | 2001-02-23 | 2004-07-16 | France Telecom | Procede et dispositif de reconstruction spectrale d'un signal a spectre incomplet et systeme de codage/decodage associe |
AUPR433901A0 (en) | 2001-04-10 | 2001-05-17 | Lake Technology Limited | High frequency signal construction method |
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 |
DE60204039T2 (de) | 2001-11-02 | 2006-03-02 | Matsushita Electric Industrial Co., Ltd., Kadoma | Vorrichtung zur kodierung und dekodierung von audiosignalen |
CA2430923C (en) * | 2001-11-14 | 2012-01-03 | Matsushita Electric Industrial Co., Ltd. | Encoding device, decoding device, and system thereof |
JP4308229B2 (ja) * | 2001-11-14 | 2009-08-05 | パナソニック株式会社 | 符号化装置および復号化装置 |
DE60214027T2 (de) | 2001-11-14 | 2007-02-15 | Matsushita Electric Industrial Co., Ltd., Kadoma | Kodiervorrichtung und dekodiervorrichtung |
DE60212696T2 (de) * | 2001-11-23 | 2007-02-22 | Koninklijke Philips Electronics N.V. | Bandbreitenvergrösserung für audiosignale |
ATE288617T1 (de) * | 2001-11-29 | 2005-02-15 | Coding Tech Ab | Wiederherstellung von hochfrequenzkomponenten |
JP4317355B2 (ja) * | 2001-11-30 | 2009-08-19 | パナソニック株式会社 | 符号化装置、符号化方法、復号化装置、復号化方法および音響データ配信システム |
US7240001B2 (en) | 2001-12-14 | 2007-07-03 | Microsoft Corporation | Quality improvement techniques in an audio encoder |
US6934677B2 (en) | 2001-12-14 | 2005-08-23 | Microsoft Corporation | Quantization matrices based on critical band pattern information for digital audio wherein quantization bands differ from critical bands |
US20030187663A1 (en) | 2002-03-28 | 2003-10-02 | Truman Michael Mead | Broadband frequency translation for high frequency regeneration |
JP4296752B2 (ja) | 2002-05-07 | 2009-07-15 | ソニー株式会社 | 符号化方法及び装置、復号方法及び装置、並びにプログラム |
US7447631B2 (en) | 2002-06-17 | 2008-11-04 | Dolby Laboratories Licensing Corporation | Audio coding system using spectral hole filling |
TWI288915B (en) * | 2002-06-17 | 2007-10-21 | Dolby Lab Licensing Corp | Improved audio coding system using characteristics of a decoded signal to adapt synthesized spectral components |
JP3579047B2 (ja) | 2002-07-19 | 2004-10-20 | 日本電気株式会社 | オーディオ復号装置と復号方法およびプログラム |
US7454331B2 (en) | 2002-08-30 | 2008-11-18 | Dolby Laboratories Licensing Corporation | Controlling loudness of speech in signals that contain speech and other types of audio material |
US7502743B2 (en) | 2002-09-04 | 2009-03-10 | Microsoft Corporation | Multi-channel audio encoding and decoding with multi-channel transform selection |
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 |
BRPI0306434B1 (pt) | 2002-09-19 | 2018-06-12 | Nec Corporation | Aparelho e método de decodificação de áudio |
US7146316B2 (en) * | 2002-10-17 | 2006-12-05 | Clarity Technologies, Inc. | Noise reduction in subbanded speech signals |
EP1414273A1 (de) * | 2002-10-22 | 2004-04-28 | Koninklijke Philips Electronics N.V. | Signalisierung von eingebetten Daten |
US20040138876A1 (en) * | 2003-01-10 | 2004-07-15 | Nokia Corporation | Method and apparatus for artificial bandwidth expansion in speech processing |
US7318027B2 (en) | 2003-02-06 | 2008-01-08 | Dolby Laboratories Licensing Corporation | Conversion of synthesized spectral components for encoding and low-complexity transcoding |
US7318035B2 (en) | 2003-05-08 | 2008-01-08 | Dolby Laboratories Licensing Corporation | Audio coding systems and methods using spectral component coupling and spectral component regeneration |
JP2005024756A (ja) * | 2003-06-30 | 2005-01-27 | Toshiba Corp | 復号処理回路および移動端末装置 |
KR101058062B1 (ko) * | 2003-06-30 | 2011-08-19 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 잡음 부가에 의한 디코딩된 오디오의 품질 개선 |
EP2071565B1 (de) * | 2003-09-16 | 2011-05-04 | Panasonic Corporation | Codierungsvorrichtung und Decodierungsvorrichtung |
JP4822843B2 (ja) * | 2003-10-23 | 2011-11-24 | パナソニック株式会社 | スペクトル符号化装置、スペクトル復号化装置、音響信号送信装置、音響信号受信装置、およびこれらの方法 |
PL1683133T3 (pl) * | 2003-10-30 | 2007-07-31 | Koninl Philips Electronics Nv | Kodowanie lub dekodowanie sygnału audio |
GB2407952B (en) * | 2003-11-07 | 2006-11-29 | Psytechnics Ltd | Quality assessment tool |
WO2005055645A1 (en) * | 2003-12-01 | 2005-06-16 | Koninklijke Philips Electronics N.V. | Selective audio signal enhancement |
FR2865310A1 (fr) * | 2004-01-20 | 2005-07-22 | France Telecom | Procede de restauration de partiels d'un signal sonore |
US7460990B2 (en) * | 2004-01-23 | 2008-12-02 | Microsoft Corporation | Efficient coding of digital media spectral data using wide-sense perceptual similarity |
US6980933B2 (en) * | 2004-01-27 | 2005-12-27 | Dolby Laboratories Licensing Corporation | Coding techniques using estimated spectral magnitude and phase derived from MDCT coefficients |
JP4741476B2 (ja) | 2004-04-23 | 2011-08-03 | パナソニック株式会社 | 符号化装置 |
EP1744139B1 (de) * | 2004-05-14 | 2015-11-11 | Panasonic Intellectual Property Corporation of America | Dekodierungsvorrichtung und verfahren dafür |
KR20070012832A (ko) * | 2004-05-19 | 2007-01-29 | 마츠시타 덴끼 산교 가부시키가이샤 | 부호화 장치, 복호화 장치 및 이들의 방법 |
GB2416285A (en) | 2004-07-14 | 2006-01-18 | British Broadcasting Corp | Transmission of a data signal in an audio signal |
SE0402651D0 (sv) * | 2004-11-02 | 2004-11-02 | Coding Tech Ab | Advanced methods for interpolation and parameter signalling |
JP5224017B2 (ja) * | 2005-01-11 | 2013-07-03 | 日本電気株式会社 | オーディオ符号化装置、オーディオ符号化方法およびオーディオ符号化プログラム |
EP1845520A4 (de) * | 2005-02-02 | 2011-08-10 | Fujitsu Ltd | Signalverarbeitungsverfahren und signalverarbeitungseinrichtung |
DE602006004959D1 (de) | 2005-04-15 | 2009-03-12 | Dolby Sweden Ab | Zeitliche hüllkurvenformgebung von entkorrelierten signalen |
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 |
US9560349B2 (en) | 2005-04-19 | 2017-01-31 | Koninklijke Philips N.V. | Embedded data signaling |
DK1742509T3 (da) * | 2005-07-08 | 2013-11-04 | Oticon As | Et system og en fremgangsmåde til eliminering af feedback og støj i et høreapparat |
JP4899359B2 (ja) | 2005-07-11 | 2012-03-21 | ソニー株式会社 | 信号符号化装置及び方法、信号復号装置及び方法、並びにプログラム及び記録媒体 |
JP4701392B2 (ja) * | 2005-07-20 | 2011-06-15 | 国立大学法人九州工業大学 | 高域信号補間方法及び高域信号補間装置 |
JP4627548B2 (ja) * | 2005-09-08 | 2011-02-09 | パイオニア株式会社 | 帯域拡張装置、帯域拡張方法および帯域拡張プログラム |
KR20080049085A (ko) * | 2005-09-30 | 2008-06-03 | 마츠시타 덴끼 산교 가부시키가이샤 | 음성 부호화 장치 및 음성 부호화 방법 |
EP1953737B1 (de) | 2005-10-14 | 2012-10-03 | Panasonic Corporation | Transformationskodierer und transformationsverfahren |
US7536299B2 (en) * | 2005-12-19 | 2009-05-19 | Dolby Laboratories Licensing Corporation | Correlating and decorrelating transforms for multiple description coding systems |
JP4863713B2 (ja) * | 2005-12-29 | 2012-01-25 | 富士通株式会社 | 雑音抑制装置、雑音抑制方法、及びコンピュータプログラム |
US7831434B2 (en) | 2006-01-20 | 2010-11-09 | Microsoft Corporation | Complex-transform channel coding with extended-band frequency coding |
US8190425B2 (en) | 2006-01-20 | 2012-05-29 | Microsoft Corporation | Complex cross-correlation parameters for multi-channel audio |
US7953604B2 (en) * | 2006-01-20 | 2011-05-31 | Microsoft Corporation | Shape and scale parameters for extended-band frequency coding |
US20070270987A1 (en) | 2006-05-18 | 2007-11-22 | Sharp Kabushiki Kaisha | Signal processing method, signal processing apparatus and recording medium |
US7930173B2 (en) | 2006-06-19 | 2011-04-19 | Sharp Kabushiki Kaisha | Signal processing method, signal processing apparatus and recording medium |
US9159333B2 (en) | 2006-06-21 | 2015-10-13 | Samsung Electronics Co., Ltd. | Method and apparatus for adaptively encoding and decoding high frequency band |
US20080109215A1 (en) * | 2006-06-26 | 2008-05-08 | Chi-Min Liu | High frequency reconstruction by linear extrapolation |
JP4918841B2 (ja) * | 2006-10-23 | 2012-04-18 | 富士通株式会社 | 符号化システム |
JPWO2008053970A1 (ja) * | 2006-11-02 | 2010-02-25 | パナソニック株式会社 | 音声符号化装置、音声復号化装置、およびこれらの方法 |
GB2443911A (en) * | 2006-11-06 | 2008-05-21 | Matsushita Electric Ind Co Ltd | Reducing power consumption in digital broadcast receivers |
JP4967618B2 (ja) * | 2006-11-24 | 2012-07-04 | 富士通株式会社 | 復号化装置および復号化方法 |
GB0703275D0 (en) * | 2007-02-20 | 2007-03-28 | Skype Ltd | Method of estimating noise levels in a communication system |
GB0704622D0 (en) * | 2007-03-09 | 2007-04-18 | Skype Ltd | Speech coding system and method |
AU2012261547B2 (en) * | 2007-03-09 | 2014-04-17 | Skype | Speech coding system and method |
KR101411900B1 (ko) * | 2007-05-08 | 2014-06-26 | 삼성전자주식회사 | 오디오 신호의 부호화 및 복호화 방법 및 장치 |
US8046214B2 (en) * | 2007-06-22 | 2011-10-25 | Microsoft Corporation | Low complexity decoder for complex transform coding of multi-channel sound |
US7885819B2 (en) | 2007-06-29 | 2011-02-08 | Microsoft Corporation | Bitstream syntax for multi-process audio decoding |
CN101939782B (zh) | 2007-08-27 | 2012-12-05 | 爱立信电话股份有限公司 | 噪声填充与带宽扩展之间的自适应过渡频率 |
US8554349B2 (en) * | 2007-10-23 | 2013-10-08 | Clarion Co., Ltd. | High-frequency interpolation device and high-frequency interpolation method |
US8249883B2 (en) * | 2007-10-26 | 2012-08-21 | Microsoft Corporation | Channel extension coding for multi-channel source |
US9177569B2 (en) | 2007-10-30 | 2015-11-03 | Samsung Electronics Co., Ltd. | Apparatus, medium and method to encode and decode high frequency signal |
KR101373004B1 (ko) | 2007-10-30 | 2014-03-26 | 삼성전자주식회사 | 고주파수 신호 부호화 및 복호화 장치 및 방법 |
US8688441B2 (en) * | 2007-11-29 | 2014-04-01 | Motorola Mobility Llc | Method and apparatus to facilitate provision and use of an energy value to determine a spectral envelope shape for out-of-signal bandwidth content |
WO2009082302A1 (en) * | 2007-12-20 | 2009-07-02 | Telefonaktiebolaget L M Ericsson (Publ) | Noise suppression method and apparatus |
EP2232703B1 (de) * | 2007-12-20 | 2014-06-18 | Telefonaktiebolaget LM Ericsson (publ) | Rauschunterdrückungsverfahren und vorrichtung |
EP2077551B1 (de) * | 2008-01-04 | 2011-03-02 | Dolby Sweden AB | Audiokodierer und -dekodierer |
US8433582B2 (en) * | 2008-02-01 | 2013-04-30 | Motorola Mobility Llc | Method and apparatus for estimating high-band energy in a bandwidth extension system |
US20090201983A1 (en) * | 2008-02-07 | 2009-08-13 | Motorola, Inc. | Method and apparatus for estimating high-band energy in a bandwidth extension system |
KR101253278B1 (ko) * | 2008-03-04 | 2013-04-11 | 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. | 복수의 입력 데이터 스트림을 믹싱하는 장치 및 방법 |
BRPI0906142B1 (pt) | 2008-03-10 | 2020-10-20 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V. | dispositivo e método para a manipulação de um sinal de áudio tendo um evento transiente |
CN101582263B (zh) * | 2008-05-12 | 2012-02-01 | 华为技术有限公司 | 语音解码中噪音增强后处理的方法和装置 |
US9575715B2 (en) * | 2008-05-16 | 2017-02-21 | Adobe Systems Incorporated | Leveling audio signals |
BRPI0910528B1 (pt) * | 2008-07-11 | 2020-09-24 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Instrumento e método para geração de sinal estendido de largura de banda |
ES2741963T3 (es) * | 2008-07-11 | 2020-02-12 | Fraunhofer Ges Forschung | Codificadores de señal de audio, métodos para codificar una señal de audio y programas informáticos |
PL2352147T3 (pl) | 2008-07-11 | 2014-02-28 | Fraunhofer Ges Forschung | Urządzenie i sposób kodowania sygnału audio |
AU2013257391B2 (en) * | 2008-07-11 | 2015-07-09 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | An apparatus and a method for generating bandwidth extension output data |
CA2730200C (en) * | 2008-07-11 | 2016-09-27 | Max Neuendorf | An apparatus and a method for generating bandwidth extension output data |
USRE47180E1 (en) | 2008-07-11 | 2018-12-25 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Apparatus and method for generating a bandwidth extended signal |
US8880410B2 (en) | 2008-07-11 | 2014-11-04 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Apparatus and method for generating a bandwidth extended signal |
US8463412B2 (en) * | 2008-08-21 | 2013-06-11 | Motorola Mobility Llc | Method and apparatus to facilitate determining signal bounding frequencies |
US8532998B2 (en) | 2008-09-06 | 2013-09-10 | Huawei Technologies Co., Ltd. | Selective bandwidth extension for encoding/decoding audio/speech signal |
US8407046B2 (en) * | 2008-09-06 | 2013-03-26 | Huawei Technologies Co., Ltd. | Noise-feedback for spectral envelope quantization |
US8515747B2 (en) * | 2008-09-06 | 2013-08-20 | Huawei Technologies Co., Ltd. | Spectrum harmonic/noise sharpness control |
US8532983B2 (en) * | 2008-09-06 | 2013-09-10 | Huawei Technologies Co., Ltd. | Adaptive frequency prediction for encoding or decoding an audio signal |
WO2010031003A1 (en) * | 2008-09-15 | 2010-03-18 | Huawei Technologies Co., Ltd. | Adding second enhancement layer to celp based core layer |
WO2010031049A1 (en) * | 2008-09-15 | 2010-03-18 | GH Innovation, Inc. | Improving celp post-processing for music signals |
EP3992966B1 (de) | 2009-01-16 | 2022-11-23 | Dolby International AB | Produktübergreifende, erweiterte und harmonische transposition |
US8463599B2 (en) * | 2009-02-04 | 2013-06-11 | Motorola Mobility Llc | Bandwidth extension method and apparatus for a modified discrete cosine transform audio coder |
RU2538334C2 (ru) * | 2009-02-26 | 2015-01-10 | Панасоник Интеллекчуал Проперти Корпорэйшн оф Америка | Кодер, декодер и способ для них |
ES2415155T3 (es) | 2009-03-17 | 2013-07-24 | Dolby International Ab | Codificación estéreo avanzada basada en una combinación de codificación estéreo izquierda/derecha o central/lateral seleccionable de manera adaptativa y de codificación estéreo paramétrica |
EP2239732A1 (de) | 2009-04-09 | 2010-10-13 | Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. | Vorrichtung und Verfahren zur Erzeugung eines synthetischen Audiosignals und zur Kodierung eines Audiosignals |
RU2452044C1 (ru) | 2009-04-02 | 2012-05-27 | Фраунхофер-Гезелльшафт цур Фёрдерунг дер ангевандтен Форшунг Е.Ф. | Устройство, способ и носитель с программным кодом для генерирования представления сигнала с расширенным диапазоном частот на основе представления входного сигнала с использованием сочетания гармонического расширения диапазона частот и негармонического расширения диапазона частот |
CO6440537A2 (es) * | 2009-04-09 | 2012-05-15 | Fraunhofer Ges Forschung | Aparato y metodo para generar una señal de audio de sintesis y para codificar una señal de audio |
TWI643187B (zh) | 2009-05-27 | 2018-12-01 | 瑞典商杜比國際公司 | 從訊號的低頻成份產生該訊號之高頻成份的系統與方法,及其機上盒、電腦程式產品、軟體程式及儲存媒體 |
US11657788B2 (en) | 2009-05-27 | 2023-05-23 | Dolby International Ab | Efficient combined harmonic transposition |
WO2011001578A1 (ja) * | 2009-06-29 | 2011-01-06 | パナソニック株式会社 | 通信装置 |
CN101638861B (zh) * | 2009-08-16 | 2012-07-18 | 岳阳林纸股份有限公司 | 一种工业淋膜原纸的制造方法 |
JP5754899B2 (ja) | 2009-10-07 | 2015-07-29 | ソニー株式会社 | 復号装置および方法、並びにプログラム |
WO2011048010A1 (en) | 2009-10-19 | 2011-04-28 | Dolby International Ab | Metadata time marking information for indicating a section of an audio object |
JP5414454B2 (ja) | 2009-10-23 | 2014-02-12 | 日立オートモティブシステムズ株式会社 | 車両運動制御装置 |
WO2011087332A2 (ko) | 2010-01-15 | 2011-07-21 | 엘지전자 주식회사 | 오디오 신호 처리 방법 및 장치 |
EP2362375A1 (de) * | 2010-02-26 | 2011-08-31 | Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. | Gerät und Verfahren zur Änderung eines Audiosignals durch Hüllkurvenenformung |
JP5609737B2 (ja) | 2010-04-13 | 2014-10-22 | ソニー株式会社 | 信号処理装置および方法、符号化装置および方法、復号装置および方法、並びにプログラム |
JP5850216B2 (ja) | 2010-04-13 | 2016-02-03 | ソニー株式会社 | 信号処理装置および方法、符号化装置および方法、復号装置および方法、並びにプログラム |
CN103069484B (zh) * | 2010-04-14 | 2014-10-08 | 华为技术有限公司 | 时/频二维后处理 |
JP5589631B2 (ja) * | 2010-07-15 | 2014-09-17 | 富士通株式会社 | 音声処理装置、音声処理方法および電話装置 |
US8560330B2 (en) * | 2010-07-19 | 2013-10-15 | Futurewei Technologies, Inc. | Energy envelope perceptual correction for high band coding |
US12002476B2 (en) | 2010-07-19 | 2024-06-04 | Dolby International Ab | Processing of audio signals during high frequency reconstruction |
US9047875B2 (en) | 2010-07-19 | 2015-06-02 | Futurewei Technologies, Inc. | Spectrum flatness control for bandwidth extension |
KR102026677B1 (ko) | 2010-07-19 | 2019-09-30 | 돌비 인터네셔널 에이비 | 고주파 복원 동안 오디오 신호들의 프로세싱 |
JP6075743B2 (ja) | 2010-08-03 | 2017-02-08 | ソニー株式会社 | 信号処理装置および方法、並びにプログラム |
JP5707842B2 (ja) * | 2010-10-15 | 2015-04-30 | ソニー株式会社 | 符号化装置および方法、復号装置および方法、並びにプログラム |
JP2011059714A (ja) * | 2010-12-06 | 2011-03-24 | Sony Corp | 信号符号化装置及び方法、信号復号装置及び方法、並びにプログラム及び記録媒体 |
EP2466580A1 (de) * | 2010-12-14 | 2012-06-20 | Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. | Codierer und Verfahren zur prädiktiven Codierung, Decodierer und Verfahren zur Decodierung, System und Verfahren zur prädiktiven Codierung und Decodierung und prädiktiv codiertes Informationssignal |
US8706509B2 (en) | 2011-04-15 | 2014-04-22 | Telefonaktiebolaget L M Ericsson (Publ) | Method and a decoder for attenuation of signal regions reconstructed with low accuracy |
JP5569476B2 (ja) * | 2011-07-11 | 2014-08-13 | ソニー株式会社 | 信号符号化装置及び方法、信号復号装置及び方法、並びにプログラム及び記録媒体 |
US8620646B2 (en) * | 2011-08-08 | 2013-12-31 | The Intellisis Corporation | System and method for tracking sound pitch across an audio signal using harmonic envelope |
JP2013073230A (ja) * | 2011-09-29 | 2013-04-22 | Renesas Electronics Corp | オーディオ符号化装置 |
CN103123787B (zh) * | 2011-11-21 | 2015-11-18 | 金峰 | 一种移动终端与媒体同步与交互的方法 |
RU2601188C2 (ru) * | 2012-02-23 | 2016-10-27 | Долби Интернэшнл Аб | Способы и системы для эффективного восстановления высокочастотного аудиоконтента |
EP2830062B1 (de) | 2012-03-21 | 2019-11-20 | Samsung Electronics Co., Ltd. | Verfahren und vorrichtung für hochfrequente codierung/decodierung zur bandbreitenerweiterung |
ES2561603T3 (es) * | 2012-03-29 | 2016-02-29 | Telefonaktiebolaget Lm Ericsson (Publ) | Extensión del ancho de banda de una señal de audio armónica |
EP2682941A1 (de) * | 2012-07-02 | 2014-01-08 | Technische Universität Ilmenau | Vorrichtung, Verfahren und Computerprogramm für frei wählbare Frequenzverschiebungen in der Subband-Domäne |
US20140081627A1 (en) * | 2012-09-14 | 2014-03-20 | Quickfilter Technologies, Llc | Method for optimization of multiple psychoacoustic effects |
MX343572B (es) * | 2013-01-29 | 2016-11-09 | Fraunhofer Ges Forschung | Concepto de llenado con ruido. |
US9741350B2 (en) * | 2013-02-08 | 2017-08-22 | Qualcomm Incorporated | Systems and methods of performing gain control |
CN117253498A (zh) | 2013-04-05 | 2023-12-19 | 杜比国际公司 | 音频信号的解码方法和解码器、介质以及编码方法 |
EP3528249A1 (de) | 2013-04-05 | 2019-08-21 | Dolby International AB | Stereoaudiocodierer und -decodierer |
ES2635026T3 (es) * | 2013-06-10 | 2017-10-02 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Aparato y procedimiento de codificación, procesamiento y decodificación de envolvente de señal de audio por división de la envolvente de la señal de audio utilizando cuantización y codificación de distribución |
PT3008726T (pt) | 2013-06-10 | 2017-11-24 | Fraunhofer Ges Forschung | Aparelho e método de codificação, processamento e descodificação de envelope de sinal de áudio por modelação da representação de soma cumulativa empregando codificação e quantização de distribuição |
EP2830063A1 (de) | 2013-07-22 | 2015-01-28 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtung, Verfahren und Computerprogramm zum Dekodieren eines kodierten Audiosignals |
EP2830055A1 (de) | 2013-07-22 | 2015-01-28 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Kontextbasierte Entropiecodierung von Probenwerten einer spektralen Hüllkurve |
TWI557726B (zh) * | 2013-08-29 | 2016-11-11 | 杜比國際公司 | 用於決定音頻信號的高頻帶信號的主比例因子頻帶表之系統和方法 |
US9666202B2 (en) | 2013-09-10 | 2017-05-30 | Huawei Technologies Co., Ltd. | Adaptive bandwidth extension and apparatus for the same |
CN105531762B (zh) | 2013-09-19 | 2019-10-01 | 索尼公司 | 编码装置和方法、解码装置和方法以及程序 |
SG11201605015XA (en) | 2013-12-27 | 2016-08-30 | Sony Corp | Decoding device, method, and program |
RU2689181C2 (ru) | 2014-03-31 | 2019-05-24 | Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. | Кодер, декодер, способ кодирования, способ декодирования и программа |
ES2912595T3 (es) * | 2014-05-01 | 2022-05-26 | Nippon Telegraph & Telephone | Codificación de una señal de sonido |
US9984699B2 (en) * | 2014-06-26 | 2018-05-29 | Qualcomm Incorporated | High-band signal coding using mismatched frequency ranges |
EP2980801A1 (de) * | 2014-07-28 | 2016-02-03 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren zur Schätzung des Rauschens in einem Audiosignal, Rauschschätzer, Audiocodierer, Audiodecodierer und System zur Übertragung von Audiosignalen |
EP2980792A1 (de) * | 2014-07-28 | 2016-02-03 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtung und Verfahren zur Erzeugung eines verbesserten Signals mit unabhängiger Rausch-Füllung |
EP3067889A1 (de) * | 2015-03-09 | 2016-09-14 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren und vorrichtung zur transformation für signal-adaptive kernelschaltung bei der audiocodierung |
WO2016142002A1 (en) | 2015-03-09 | 2016-09-15 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Audio encoder, audio decoder, method for encoding an audio signal and method for decoding an encoded audio signal |
CA3018039C (en) * | 2016-03-24 | 2023-08-29 | Harman International Industries, Incorporated | Signal quality-based enhancement and compensation of compressed audio signals |
CN117316168A (zh) | 2016-04-12 | 2023-12-29 | 弗劳恩霍夫应用研究促进协会 | 用于对音频信号进行编码的音频编码器以及方法 |
CN107545900B (zh) * | 2017-08-16 | 2020-12-01 | 广州广晟数码技术有限公司 | 带宽扩展编码和解码中高频弦信号生成的方法和装置 |
US10537446B2 (en) | 2017-09-20 | 2020-01-21 | Depuy Ireland Unlimited Company | Method and instruments for assembling an orthopaedic prosthesis |
US10537341B2 (en) | 2017-09-20 | 2020-01-21 | Depuy Ireland Unlimited Company | Orthopaedic system and method for assembling prosthetic components |
US10543001B2 (en) | 2017-09-20 | 2020-01-28 | Depuy Ireland Unlimited Company | Method and instruments for assembling a femoral orthopaedic prosthesis |
EP3483879A1 (de) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Analyse-/synthese-fensterfunktion für modulierte geläppte transformation |
WO2019091573A1 (en) * | 2017-11-10 | 2019-05-16 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for encoding and decoding an audio signal using downsampling or interpolation of scale parameters |
TWI809289B (zh) | 2018-01-26 | 2023-07-21 | 瑞典商都比國際公司 | 用於執行一音訊信號之高頻重建之方法、音訊處理單元及非暫時性電腦可讀媒體 |
JP7252976B2 (ja) * | 2018-04-25 | 2023-04-05 | ドルビー・インターナショナル・アーベー | 後処理遅延低減との高周波再構成技術の統合 |
EP3662469A4 (de) | 2018-04-25 | 2020-08-19 | Dolby International AB | Integration von hochfrequenz-rekonstruktionstechniken mit reduzierter nachverarbeitungsverzögerung |
CN110633686B (zh) * | 2019-09-20 | 2023-03-24 | 安徽智寰科技有限公司 | 一种基于振动信号数据驱动的设备转速识别方法 |
US11817114B2 (en) | 2019-12-09 | 2023-11-14 | Dolby Laboratories Licensing Corporation | Content and environmentally aware environmental noise compensation |
CN111257933B (zh) * | 2019-12-26 | 2021-01-05 | 中国地质大学(武汉) | 基于低频阴影现象的油气藏预测新方法 |
CN113630120B (zh) * | 2021-03-31 | 2024-08-09 | 中山大学 | 一种结合1比特模数转换器的零时延通信方法及其应用 |
KR20220158395A (ko) | 2021-05-24 | 2022-12-01 | 한국전자통신연구원 | 오디오 신호의 부호화 및 복호화 방법과 그 방법을 수행하는 부호화기 및 복호화기 |
Family Cites Families (100)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4166924A (en) | 1977-05-12 | 1979-09-04 | Bell Telephone Laboratories, Incorporated | Removing reverberative echo components in speech signals |
FR2412987A1 (fr) | 1977-12-23 | 1979-07-20 | Ibm France | Procede de compression de donnees relatives au signal vocal et dispositif mettant en oeuvre ledit procede |
JPS55102982A (en) * | 1979-01-31 | 1980-08-06 | Sony Corp | Synchronizing detection circuit |
US4330689A (en) | 1980-01-28 | 1982-05-18 | The United States Of America As Represented By The Secretary Of The Navy | Multirate digital voice communication processor |
DE3171311D1 (en) | 1981-07-28 | 1985-08-14 | Ibm | Voice coding method and arrangment for carrying out said method |
US4667340A (en) * | 1983-04-13 | 1987-05-19 | Texas Instruments Incorporated | Voice messaging system with pitch-congruent baseband coding |
US4672670A (en) | 1983-07-26 | 1987-06-09 | Advanced Micro Devices, Inc. | Apparatus and methods for coding, decoding, analyzing and synthesizing a signal |
US4538297A (en) * | 1983-08-08 | 1985-08-27 | Waller Jr James | Aurally sensitized flat frequency response noise reduction compansion system |
US4700362A (en) | 1983-10-07 | 1987-10-13 | Dolby Laboratories Licensing Corporation | A-D encoder and D-A decoder system |
IL73030A (en) | 1984-09-19 | 1989-07-31 | Yaacov Kaufman | Joint and method utilising its assembly |
US4790016A (en) | 1985-11-14 | 1988-12-06 | Gte Laboratories Incorporated | Adaptive method and apparatus for coding speech |
FR2577084B1 (fr) | 1985-02-01 | 1987-03-20 | Trt Telecom Radio Electr | Systeme de bancs de filtres d'analyse et de synthese d'un signal |
CA1220282A (en) | 1985-04-03 | 1987-04-07 | Northern Telecom Limited | Transmission of wideband speech signals |
EP0243562B1 (de) | 1986-04-30 | 1992-01-29 | International Business Machines Corporation | Sprachkodierungsverfahren und Einrichtung zur Ausführung dieses Verfahrens |
US4776014A (en) | 1986-09-02 | 1988-10-04 | General Electric Company | Method for pitch-aligned high-frequency regeneration in RELP vocoders |
US4771465A (en) | 1986-09-11 | 1988-09-13 | American Telephone And Telegraph Company, At&T Bell Laboratories | Digital speech sinusoidal vocoder with transmission of only subset of harmonics |
DE3639753A1 (de) * | 1986-11-21 | 1988-06-01 | Inst Rundfunktechnik Gmbh | Verfahren zum uebertragen digitalisierter tonsignale |
US5054072A (en) | 1987-04-02 | 1991-10-01 | Massachusetts Institute Of Technology | Coding of acoustic waveforms |
US5285520A (en) | 1988-03-02 | 1994-02-08 | Kokusai Denshin Denwa Kabushiki Kaisha | Predictive coding apparatus |
US5127054A (en) * | 1988-04-29 | 1992-06-30 | Motorola, Inc. | Speech quality improvement for voice coders and synthesizers |
US5226000A (en) * | 1988-11-08 | 1993-07-06 | Wadia Digital Corporation | Method and system for time domain interpolation of digital audio signals |
DE68916944T2 (de) | 1989-04-11 | 1995-03-16 | Ibm | Verfahren zur schnellen Bestimmung der Grundfrequenz in Sprachcodierern mit langfristiger Prädiktion. |
US5261027A (en) | 1989-06-28 | 1993-11-09 | Fujitsu Limited | Code excited linear prediction speech coding system |
US4974187A (en) | 1989-08-02 | 1990-11-27 | Aware, Inc. | Modular digital signal processing system |
US5040217A (en) | 1989-10-18 | 1991-08-13 | At&T Bell Laboratories | Perceptual coding of audio signals |
US4969040A (en) | 1989-10-26 | 1990-11-06 | Bell Communications Research, Inc. | Apparatus and method for differential sub-band coding of video signals |
US5293449A (en) | 1990-11-23 | 1994-03-08 | Comsat Corporation | Analysis-by-synthesis 2,4 kbps linear predictive speech codec |
JP3158458B2 (ja) | 1991-01-31 | 2001-04-23 | 日本電気株式会社 | 階層表現された信号の符号化方式 |
GB9104186D0 (en) | 1991-02-28 | 1991-04-17 | British Aerospace | Apparatus for and method of digital signal processing |
US5235420A (en) | 1991-03-22 | 1993-08-10 | Bell Communications Research, Inc. | Multilayer universal video coder |
GB2257606B (en) | 1991-06-28 | 1995-01-18 | Sony Corp | Recording and/or reproducing apparatuses and signal processing methods for compressed data |
JPH05191885A (ja) | 1992-01-10 | 1993-07-30 | Clarion Co Ltd | 音響信号イコライザ回路 |
US5765127A (en) | 1992-03-18 | 1998-06-09 | Sony Corp | High efficiency encoding method |
US5351338A (en) | 1992-07-06 | 1994-09-27 | Telefonaktiebolaget L M Ericsson | Time variable spectral analysis based on interpolation for speech coding |
IT1257065B (it) | 1992-07-31 | 1996-01-05 | Sip | Codificatore a basso ritardo per segnali audio, utilizzante tecniche di analisi per sintesi. |
JPH0685607A (ja) * | 1992-08-31 | 1994-03-25 | Alpine Electron Inc | 高域成分復元装置 |
JP2779886B2 (ja) | 1992-10-05 | 1998-07-23 | 日本電信電話株式会社 | 広帯域音声信号復元方法 |
JP3191457B2 (ja) | 1992-10-31 | 2001-07-23 | ソニー株式会社 | 高能率符号化装置、ノイズスペクトル変更装置及び方法 |
CA2106440C (en) | 1992-11-30 | 1997-11-18 | Jelena Kovacevic | Method and apparatus for reducing correlated errors in subband coding systems with quantizers |
JP3496230B2 (ja) | 1993-03-16 | 2004-02-09 | パイオニア株式会社 | 音場制御システム |
US5581653A (en) | 1993-08-31 | 1996-12-03 | Dolby Laboratories Licensing Corporation | Low bit-rate high-resolution spectral envelope coding for audio encoder and decoder |
JPH07160299A (ja) | 1993-12-06 | 1995-06-23 | Hitachi Denshi Ltd | 音声信号帯域圧縮伸張装置並びに音声信号の帯域圧縮伝送方式及び再生方式 |
JP2616549B2 (ja) | 1993-12-10 | 1997-06-04 | 日本電気株式会社 | 音声復号装置 |
CA2118880A1 (en) * | 1994-03-11 | 1995-09-12 | Kannan Ramchandran | Jpeg/mpeg decoder-compatible optimized thresholding for image and video signal compression |
US5684920A (en) | 1994-03-17 | 1997-11-04 | Nippon Telegraph And Telephone | Acoustic signal transform coding method and decoding method having a high efficiency envelope flattening method therein |
US5787387A (en) | 1994-07-11 | 1998-07-28 | Voxware, Inc. | Harmonic adaptive speech coding method and system |
ATE284121T1 (de) * | 1994-10-06 | 2004-12-15 | Fidelix Y K | Verfahren zur wiedergabe von audiosignalen und vorrichtung dafür |
JP3483958B2 (ja) | 1994-10-28 | 2004-01-06 | 三菱電機株式会社 | 広帯域音声復元装置及び広帯域音声復元方法及び音声伝送システム及び音声伝送方法 |
FR2729024A1 (fr) | 1994-12-30 | 1996-07-05 | Matra Communication | Annuleur d'echo acoustique avec filtrage en sous-bandes |
US5701390A (en) | 1995-02-22 | 1997-12-23 | Digital Voice Systems, Inc. | Synthesis of MBE-based coded speech using regenerated phase information |
JP3189614B2 (ja) * | 1995-03-13 | 2001-07-16 | 松下電器産業株式会社 | 音声帯域拡大装置 |
JP2956548B2 (ja) | 1995-10-05 | 1999-10-04 | 松下電器産業株式会社 | 音声帯域拡大装置 |
JP2798003B2 (ja) | 1995-05-09 | 1998-09-17 | 松下電器産業株式会社 | 音声帯域拡大装置および音声帯域拡大方法 |
US5617509A (en) * | 1995-03-29 | 1997-04-01 | Motorola, Inc. | Method, apparatus, and radio optimizing Hidden Markov Model speech recognition |
JP3334419B2 (ja) * | 1995-04-20 | 2002-10-15 | ソニー株式会社 | ノイズ低減方法及びノイズ低減装置 |
US5915235A (en) | 1995-04-28 | 1999-06-22 | Dejaco; Andrew P. | Adaptive equalizer preprocessor for mobile telephone speech coder to modify nonideal frequency response of acoustic transducer |
US5664055A (en) * | 1995-06-07 | 1997-09-02 | Lucent Technologies Inc. | CS-ACELP speech compression system with adaptive pitch prediction filter gain based on a measure of periodicity |
US5692050A (en) | 1995-06-15 | 1997-11-25 | Binaura Corporation | Method and apparatus for spatially enhancing stereo and monophonic signals |
EP0756267A1 (de) * | 1995-07-24 | 1997-01-29 | International Business Machines Corporation | Methode und System zur Stille-Entfernung in Sprachübertragung |
JPH0946233A (ja) | 1995-07-31 | 1997-02-14 | Kokusai Electric Co Ltd | 音声符号化方法とその装置、音声復号方法とその装置 |
JPH0955778A (ja) | 1995-08-15 | 1997-02-25 | Fujitsu Ltd | 音声信号の広帯域化装置 |
JP3301473B2 (ja) | 1995-09-27 | 2002-07-15 | 日本電信電話株式会社 | 広帯域音声信号復元方法 |
US5867819A (en) | 1995-09-29 | 1999-02-02 | Nippon Steel Corporation | Audio decoder |
JP3283413B2 (ja) | 1995-11-30 | 2002-05-20 | 株式会社日立製作所 | 符号化復号方法、符号化装置および復号装置 |
US5956674A (en) * | 1995-12-01 | 1999-09-21 | Digital Theater Systems, Inc. | Multi-channel predictive subband audio coder using psychoacoustic adaptive bit allocation in frequency, time and over the multiple channels |
US5687191A (en) | 1995-12-06 | 1997-11-11 | Solana Technology Development Corporation | Post-compression hidden data transport |
US5781888A (en) | 1996-01-16 | 1998-07-14 | Lucent Technologies Inc. | Perceptual noise shaping in the time domain via LPC prediction in the frequency domain |
JP3304739B2 (ja) | 1996-02-08 | 2002-07-22 | 松下電器産業株式会社 | ロスレス符号装置とロスレス記録媒体とロスレス復号装置とロスレス符号復号装置 |
US6449596B1 (en) * | 1996-02-08 | 2002-09-10 | Matsushita Electric Industrial Co., Ltd. | Wideband audio signal encoding apparatus that divides wide band audio data into a number of sub-bands of numbers of bits for quantization based on noise floor information |
US5852806A (en) * | 1996-03-19 | 1998-12-22 | Lucent Technologies Inc. | Switched filterbank for use in audio signal coding |
US5822370A (en) | 1996-04-16 | 1998-10-13 | Aura Systems, Inc. | Compression/decompression for preservation of high fidelity speech quality at low bandwidth |
US5848164A (en) | 1996-04-30 | 1998-12-08 | The Board Of Trustees Of The Leland Stanford Junior University | System and method for effects processing on audio subband data |
DE19617476A1 (de) * | 1996-05-02 | 1997-11-06 | Francotyp Postalia Gmbh | Verfahren und Anordnung zur Datenverarbeitung in einem Postverarbeitungssystem mit einer Frankiermaschine |
US5974387A (en) | 1996-06-19 | 1999-10-26 | Yamaha Corporation | Audio recompression from higher rates for karaoke, video games, and other applications |
JP3246715B2 (ja) | 1996-07-01 | 2002-01-15 | 松下電器産業株式会社 | オーディオ信号圧縮方法,およびオーディオ信号圧縮装置 |
CA2184541A1 (en) | 1996-08-30 | 1998-03-01 | Tet Hin Yeap | Method and apparatus for wavelet modulation of signals for transmission and/or storage |
US5960389A (en) * | 1996-11-15 | 1999-09-28 | Nokia Mobile Phones Limited | Methods for generating comfort noise during discontinuous transmission |
US5875122A (en) | 1996-12-17 | 1999-02-23 | Intel Corporation | Integrated systolic architecture for decomposition and reconstruction of signals using wavelet transforms |
CN1187070A (zh) * | 1996-12-31 | 1998-07-08 | 大宇电子株式会社 | 使用多个处理单元的中值滤波方法及装置 |
US5812927A (en) * | 1997-02-10 | 1998-09-22 | Lsi Logic Corporation | System and method for correction of I/Q angular error in a satellite receiver |
CN1190773A (zh) * | 1997-02-13 | 1998-08-19 | 合泰半导体股份有限公司 | 语音编码的波形增益估测方法 |
JPH10276095A (ja) | 1997-03-28 | 1998-10-13 | Toshiba Corp | 符号化器及び復号化器 |
SE512719C2 (sv) | 1997-06-10 | 2000-05-02 | Lars Gustaf Liljeryd | En metod och anordning för reduktion av dataflöde baserad på harmonisk bandbreddsexpansion |
GB9714001D0 (en) * | 1997-07-02 | 1997-09-10 | Simoco Europ Limited | Method and apparatus for speech enhancement in a speech communication system |
US6144937A (en) | 1997-07-23 | 2000-11-07 | Texas Instruments Incorporated | Noise suppression of speech by signal processing including applying a transform to time domain input sequences of digital signals representing audio information |
US6104994A (en) * | 1998-01-13 | 2000-08-15 | Conexant Systems, Inc. | Method for speech coding under background noise conditions |
FI980132A (fi) * | 1998-01-21 | 1999-07-22 | Nokia Mobile Phones Ltd | Adaptoituva jälkisuodatin |
US6850883B1 (en) * | 1998-02-09 | 2005-02-01 | Nokia Networks Oy | Decoding method, speech coding processing unit and a network element |
KR100474826B1 (ko) | 1998-05-09 | 2005-05-16 | 삼성전자주식회사 | 음성부호화기에서의주파수이동법을이용한다중밴드의유성화도결정방법및그장치 |
TW376611B (en) * | 1998-05-26 | 1999-12-11 | Koninkl Philips Electronics Nv | Transmission system with improved speech encoder |
US5990738A (en) * | 1998-06-19 | 1999-11-23 | Datum Telegraphic Inc. | Compensation system and methods for a linear power amplifier |
US6385573B1 (en) * | 1998-08-24 | 2002-05-07 | Conexant Systems, Inc. | Adaptive tilt compensation for synthesized speech residual |
GB2344036B (en) | 1998-11-23 | 2004-01-21 | Mitel Corp | Single-sided subband filters |
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) |
US6226616B1 (en) * | 1999-06-21 | 2001-05-01 | Digital Theater Systems, Inc. | Sound quality of established low bit-rate audio coding systems without loss of decoder compatibility |
US6324505B1 (en) * | 1999-07-19 | 2001-11-27 | Qualcomm Incorporated | Amplitude quantization scheme for low-bit-rate speech coders |
JP2003505967A (ja) | 1999-07-27 | 2003-02-12 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | フィルタリング装置 |
US7742927B2 (en) | 2000-04-18 | 2010-06-22 | France Telecom | Spectral enhancing method and device |
EP1211636A1 (de) | 2000-11-29 | 2002-06-05 | STMicroelectronics S.r.l. | Filtereinrichtung und Verfahren zur Reduzierung von Geräusch in elektrischen Signalen, insbesondere akustische Signale und Bilder |
SE0004818D0 (sv) * | 2000-12-22 | 2000-12-22 | Coding Technologies Sweden Ab | Enhancing source coding systems by adaptive transposition |
-
1999
- 1999-10-01 SE SE9903553A patent/SE9903553D0/xx unknown
-
2000
- 2000-01-26 ES ES04000445T patent/ES2254992T3/es not_active Expired - Lifetime
- 2000-01-26 EP EP00904174A patent/EP1157374B1/de not_active Expired - Lifetime
- 2000-01-26 PT PT05020588T patent/PT1617418E/pt unknown
- 2000-01-26 EP EP08000695A patent/EP1914729B1/de not_active Expired - Lifetime
- 2000-01-26 ES ES08000695T patent/ES2334404T3/es not_active Expired - Lifetime
- 2000-01-26 AT AT05020588T patent/ATE395688T1/de not_active IP Right Cessation
- 2000-01-26 WO PCT/SE2000/000159 patent/WO2000045379A2/en active IP Right Grant
- 2000-01-26 DK DK00904174T patent/DK1157374T3/da active
- 2000-01-26 CN CN200610008886XA patent/CN1838238B/zh not_active Expired - Lifetime
- 2000-01-26 BR BRPI0009138A patent/BRPI0009138B1/pt active IP Right Grant
- 2000-01-26 DE DE60013785T patent/DE60013785T2/de not_active Expired - Lifetime
- 2000-01-26 AU AU25857/00A patent/AU2585700A/en not_active Abandoned
- 2000-01-26 CN CN2009101650190A patent/CN101625866B/zh not_active Expired - Lifetime
- 2000-01-26 JP JP2000596560A patent/JP3603026B2/ja not_active Expired - Fee Related
- 2000-01-26 BR BR122015007141A patent/BR122015007141B1/pt active IP Right Grant
- 2000-01-26 RU RU2001123694/09A patent/RU2226032C2/ru not_active IP Right Cessation
- 2000-01-26 ES ES00904174T patent/ES2226779T3/es not_active Expired - Lifetime
- 2000-01-26 US US09/647,057 patent/US6708145B1/en not_active Expired - Lifetime
- 2000-01-26 DK DK08000694.3T patent/DK1914728T3/da active
- 2000-01-26 DK DK08000695.0T patent/DK1914729T3/da active
- 2000-01-26 CN CN200610008887.4A patent/CN1838239B/zh not_active Expired - Lifetime
- 2000-01-26 PT PT08000695T patent/PT1914729E/pt unknown
- 2000-01-26 DK DK04000445T patent/DK1408484T3/da active
- 2000-01-26 BR BR122015007138A patent/BR122015007138B1/pt active IP Right Grant
- 2000-01-26 DE DE60038915T patent/DE60038915D1/de not_active Expired - Lifetime
- 2000-01-26 CN CNB008031746A patent/CN1181467C/zh not_active Expired - Fee Related
- 2000-01-26 AT AT08000695T patent/ATE449407T1/de active
- 2000-01-26 ES ES05020588T patent/ES2307100T3/es not_active Expired - Lifetime
- 2000-01-26 AT AT08000694T patent/ATE449406T1/de active
- 2000-01-26 DE DE60043364T patent/DE60043364D1/de not_active Expired - Lifetime
- 2000-01-26 ES ES08000694T patent/ES2334403T3/es not_active Expired - Lifetime
- 2000-01-26 CN CNB2004100459979A patent/CN1258171C/zh not_active Expired - Lifetime
- 2000-01-26 BR BR122015007146A patent/BR122015007146B1/pt active IP Right Grant
- 2000-01-26 EP EP04000445A patent/EP1408484B1/de not_active Expired - Lifetime
- 2000-01-26 CN CN200510107590A patent/CN100587807C/zh not_active Expired - Lifetime
- 2000-01-26 US US11/371,309 patent/USRE43189E1/en not_active Expired - Lifetime
- 2000-01-26 EP EP08000694A patent/EP1914728B1/de not_active Expired - Lifetime
- 2000-01-26 DE DE60024501T patent/DE60024501T2/de not_active Expired - Lifetime
- 2000-01-26 PT PT00904174T patent/PT1157374E/pt unknown
- 2000-01-26 AT AT00904174T patent/ATE276569T1/de active
- 2000-01-26 AT AT04000445T patent/ATE311651T1/de active
- 2000-01-26 DK DK05020588T patent/DK1617418T3/da active
- 2000-01-26 PT PT08000694T patent/PT1914728E/pt unknown
- 2000-01-26 DE DE60043363T patent/DE60043363D1/de not_active Expired - Lifetime
- 2000-01-26 EP EP05020588A patent/EP1617418B1/de not_active Expired - Lifetime
-
2003
- 2003-08-08 HK HK03105686A patent/HK1053534A1/xx not_active IP Right Cessation
-
2004
- 2004-07-16 HK HK04105232A patent/HK1062349A1/xx not_active IP Right Cessation
- 2004-08-23 JP JP2004242075A patent/JP4377302B2/ja not_active Expired - Lifetime
-
2005
- 2005-10-12 JP JP2005297691A patent/JP4511443B2/ja not_active Expired - Lifetime
-
2006
- 2006-02-17 HK HK06102094A patent/HK1082093A1/xx unknown
- 2006-02-24 JP JP2006048144A patent/JP4519784B2/ja not_active Expired - Lifetime
- 2006-02-24 JP JP2006048134A patent/JP4519783B2/ja not_active Expired - Lifetime
- 2006-12-29 HK HK06114274.2A patent/HK1093812A1/xx unknown
- 2006-12-29 HK HK06114275.1A patent/HK1094077A1/xx unknown
-
2009
- 2009-05-29 JP JP2009130932A patent/JP4852123B2/ja not_active Expired - Lifetime
- 2009-05-29 JP JP2009130923A patent/JP4852122B2/ja not_active Expired - Lifetime
- 2009-06-24 US US12/490,969 patent/US8036880B2/en not_active Expired - Fee Related
- 2009-06-24 US US12/491,001 patent/US8036882B2/en not_active Expired - Fee Related
- 2009-06-24 US US12/490,990 patent/US8036881B2/en not_active Expired - Fee Related
-
2010
- 2010-07-13 HK HK10106768.5A patent/HK1140572A1/xx unknown
-
2011
- 2011-09-12 US US13/230,654 patent/US8255233B2/en not_active Expired - Fee Related
-
2012
- 2012-04-30 US US13/460,789 patent/US8543385B2/en not_active Expired - Fee Related
-
2013
- 2013-08-22 US US13/973,193 patent/US8738369B2/en not_active Expired - Fee Related
-
2014
- 2014-04-15 US US14/252,947 patent/US8935156B2/en not_active Expired - Fee Related
- 2014-12-09 US US14/564,244 patent/US9245533B2/en not_active Expired - Fee Related
-
2015
- 2015-12-14 US US14/967,600 patent/US20160099005A1/en not_active Abandoned
Also Published As
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DK1408484T3 (da) | Forbedring af perceptuel af SBR (spektralbåndreplikation) og HFR (höjfrekvensrekonstruktion) kodefremgangsmåder ved adaptiv basisstöjaddition og stöjsubstitutionsbegrænsning | |
JP2023162400A (ja) | 高周波再構成の際のオーディオ信号処理 | |
Nagel et al. | A harmonic bandwidth extension method for audio codecs | |
DK1342230T3 (da) | Forbedring af den perceptuelle præstation af fremgangsmåder til höjfrekvensrekonstruktionskodning ved adaptiv filtrering | |
AU2011239995B2 (en) | Apparatus, method and computer program for generating a wideband signal using guided bandwidth extension and blind bandwidth extension | |
EP2347412B1 (de) | Verfahren und system zur frequenzbereichs-nachfilterung von kodierten audiodaten in einem dekoder | |
AU2011239995A1 (en) | Apparatus, method and computer program for generating a wideband signal using guided bandwidth extension and blind bandwidth extension | |
AU2014283285B2 (en) | Audio decoder having a bandwidth extension module with an energy adjusting module | |
Cole et al. | Speech Enhancement by Formant Sharpening in the Cepstral Domain |