DE69816810T2 - Systeme und verfahren zur audio-kodierung - Google Patents
Systeme und verfahren zur audio-kodierung Download PDFInfo
- Publication number
- DE69816810T2 DE69816810T2 DE69816810T DE69816810T DE69816810T2 DE 69816810 T2 DE69816810 T2 DE 69816810T2 DE 69816810 T DE69816810 T DE 69816810T DE 69816810 T DE69816810 T DE 69816810T DE 69816810 T2 DE69816810 T2 DE 69816810T2
- Authority
- DE
- Germany
- Prior art keywords
- signal
- subband
- audio
- coding
- band
- 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
- 238000000034 method Methods 0.000 title claims description 30
- 230000005284 excitation Effects 0.000 claims description 41
- 238000004458 analytical method Methods 0.000 claims description 34
- 230000005236 sound signal Effects 0.000 claims description 31
- 230000003595 spectral effect Effects 0.000 claims description 30
- 230000006870 function Effects 0.000 claims description 14
- 230000000737 periodic effect Effects 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 claims description 4
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- 238000012544 monitoring process Methods 0.000 claims description 2
- 230000002194 synthesizing effect Effects 0.000 claims 4
- 230000001419 dependent effect Effects 0.000 claims 1
- 238000001228 spectrum Methods 0.000 description 21
- 238000013459 approach Methods 0.000 description 9
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- 230000006978 adaptation Effects 0.000 description 1
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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
- 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
- G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
-
- 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
- G10L19/087—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters using mixed excitation models, e.g. MELP, MBE, split band LPC or HVXC
Landscapes
- Engineering & Computer Science (AREA)
- Computational Linguistics (AREA)
- Quality & Reliability (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)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP97303321 | 1997-05-15 | ||
| EP97303321A EP0878790A1 (en) | 1997-05-15 | 1997-05-15 | Voice coding system and method |
| PCT/GB1998/001414 WO1998052187A1 (en) | 1997-05-15 | 1998-05-15 | Audio coding systems and methods |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE69816810D1 DE69816810D1 (de) | 2003-09-04 |
| DE69816810T2 true DE69816810T2 (de) | 2004-11-25 |
Family
ID=8229331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE69816810T Expired - Lifetime DE69816810T2 (de) | 1997-05-15 | 1998-05-15 | Systeme und verfahren zur audio-kodierung |
Country Status (5)
| Country | Link |
|---|---|
| US (2) | US6675144B1 (enExample) |
| EP (2) | EP0878790A1 (enExample) |
| JP (1) | JP4843124B2 (enExample) |
| DE (1) | DE69816810T2 (enExample) |
| WO (1) | WO1998052187A1 (enExample) |
Families Citing this family (83)
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|---|---|---|---|---|
| US6505152B1 (en) | 1999-09-03 | 2003-01-07 | Microsoft Corporation | Method and apparatus for using formant models in speech systems |
| US6978236B1 (en) | 1999-10-01 | 2005-12-20 | Coding Technologies Ab | Efficient spectral envelope coding using variable time/frequency resolution and time/frequency switching |
| JP4465768B2 (ja) * | 1999-12-28 | 2010-05-19 | ソニー株式会社 | 音声合成装置および方法、並びに記録媒体 |
| FI119576B (fi) | 2000-03-07 | 2008-12-31 | Nokia Corp | Puheenkäsittelylaite ja menetelmä puheen käsittelemiseksi, sekä digitaalinen radiopuhelin |
| US7330814B2 (en) * | 2000-05-22 | 2008-02-12 | Texas Instruments Incorporated | Wideband speech coding with modulated noise highband excitation system and method |
| US7136810B2 (en) * | 2000-05-22 | 2006-11-14 | Texas Instruments Incorporated | Wideband speech coding system and method |
| DE10041512B4 (de) * | 2000-08-24 | 2005-05-04 | Infineon Technologies Ag | Verfahren und Vorrichtung zur künstlichen Erweiterung der Bandbreite von Sprachsignalen |
| EP1199812A1 (en) * | 2000-10-20 | 2002-04-24 | Telefonaktiebolaget Lm Ericsson | Perceptually improved encoding of acoustic signals |
| US6836804B1 (en) * | 2000-10-30 | 2004-12-28 | Cisco Technology, Inc. | VoIP network |
| US6829577B1 (en) * | 2000-11-03 | 2004-12-07 | International Business Machines Corporation | Generating non-stationary additive noise for addition to synthesized speech |
| US6889182B2 (en) * | 2001-01-12 | 2005-05-03 | Telefonaktiebolaget L M Ericsson (Publ) | Speech bandwidth extension |
| EP1356454B1 (en) * | 2001-01-19 | 2006-03-01 | Koninklijke Philips Electronics N.V. | Wideband signal transmission system |
| JP4008244B2 (ja) * | 2001-03-02 | 2007-11-14 | 松下電器産業株式会社 | 符号化装置および復号化装置 |
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| DE60129941T2 (de) * | 2001-06-28 | 2008-05-08 | Stmicroelectronics S.R.L., Agrate Brianza | Ein Prozess zur Rauschreduzierung insbesondere für Audiosysteme und zugehörige Vorrichtung und Computerprogrammprodukt |
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| 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 |
| KR100602975B1 (ko) * | 2002-07-19 | 2006-07-20 | 닛본 덴끼 가부시끼가이샤 | 오디오 복호 장치와 복호 방법 및 프로그램을 기록한 컴퓨터 판독가능 기록매체 |
| US8254935B2 (en) * | 2002-09-24 | 2012-08-28 | Fujitsu Limited | Packet transferring/transmitting method and mobile communication system |
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| 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 |
| CN100550131C (zh) * | 2003-05-20 | 2009-10-14 | 松下电器产业株式会社 | 用于扩展音频信号的频带的方法及其装置 |
| US7548852B2 (en) * | 2003-06-30 | 2009-06-16 | Koninklijke Philips Electronics N.V. | Quality of decoded audio by adding noise |
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| DE102004007191B3 (de) * | 2004-02-13 | 2005-09-01 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audiocodierung |
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| CN102280109B (zh) * | 2004-05-19 | 2016-04-27 | 松下电器（美国）知识产权公司 | 编码装置、解码装置及它们的方法 |
| JP4318119B2 (ja) * | 2004-06-18 | 2009-08-19 | 国立大学法人京都大学 | 音響信号処理方法、音響信号処理装置、音響信号処理システム及びコンピュータプログラム |
| RU2007108288A (ru) * | 2004-09-06 | 2008-09-10 | Мацусита Электрик Индастриал Ко., Лтд. (Jp) | Устройство масштабируемого кодирования и способ масштабируемого кодирования |
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| KR101379263B1 (ko) | 2007-01-12 | 2014-03-28 | 삼성전자주식회사 | 대역폭 확장 복호화 방법 및 장치 |
| JP4984983B2 (ja) * | 2007-03-09 | 2012-07-25 | 富士通株式会社 | 符号化装置および符号化方法 |
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| BRPI0818042A8 (pt) * | 2007-10-15 | 2016-04-19 | Lg Electronics Inc | Método e aparelho para processar um sinal |
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| 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 |
| TR201810466T4 (tr) | 2008-08-05 | 2018-08-27 | Fraunhofer Ges Forschung | Özellik çıkarımı kullanılarak konuşmanın iyileştirilmesi için bir ses sinyalinin işlenmesine yönelik aparat ve yöntem. |
| EP2395504B1 (en) * | 2009-02-13 | 2013-09-18 | Huawei Technologies Co., Ltd. | Stereo encoding method and apparatus |
| JP5459688B2 (ja) * | 2009-03-31 | 2014-04-02 | ▲ホア▼▲ウェイ▼技術有限公司 | 復号信号のスペクトルを調整する方法、装置、および音声復号システム |
| EP2309777B1 (en) * | 2009-09-14 | 2012-11-07 | GN Resound A/S | A hearing aid with means for decorrelating input and output signals |
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| CN102714040A (zh) * | 2010-01-14 | 2012-10-03 | 松下电器产业株式会社 | 编码装置、解码装置、频谱变动量计算方法和频谱振幅调整方法 |
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| BR112013016350A2 (pt) | 2011-02-09 | 2018-06-19 | Ericsson Telefon Ab L M | codificação/decodificação eficaz de sinais de áudio |
| CN102800317B (zh) * | 2011-05-25 | 2014-09-17 | 华为技术有限公司 | 信号分类方法及设备、编解码方法及设备 |
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| CN103366751B (zh) * | 2012-03-28 | 2015-10-14 | 北京天籁传音数字技术有限公司 | 一种声音编解码装置及其方法 |
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| CN104517610B (zh) * | 2013-09-26 | 2018-03-06 | 华为技术有限公司 | 频带扩展的方法及装置 |
| US9697843B2 (en) | 2014-04-30 | 2017-07-04 | Qualcomm Incorporated | High band excitation signal generation |
| US9837089B2 (en) * | 2015-06-18 | 2017-12-05 | Qualcomm Incorporated | High-band signal generation |
| US10847170B2 (en) | 2015-06-18 | 2020-11-24 | Qualcomm Incorporated | Device and method for generating a high-band signal from non-linearly processed sub-ranges |
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| CN113113032B (zh) * | 2020-01-10 | 2024-08-09 | 华为技术有限公司 | 一种音频编解码方法和音频编解码设备 |
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| 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 |
| EP0243479A4 (en) * | 1985-10-30 | 1989-12-13 | Central Inst Deaf | LANGUAGE PROCESSING ARRANGEMENT AND METHOD. |
| DE3683767D1 (de) * | 1986-04-30 | 1992-03-12 | Ibm | Sprachkodierungsverfahren und einrichtung zur ausfuehrung dieses verfahrens. |
| JPH05265492A (ja) * | 1991-03-27 | 1993-10-15 | Oki Electric Ind Co Ltd | コード励振線形予測符号化器及び復号化器 |
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| JP3343965B2 (ja) * | 1992-10-31 | 2002-11-11 | ソニー株式会社 | 音声符号化方法及び復号化方法 |
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| 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 |
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| US5797120A (en) * | 1996-09-04 | 1998-08-18 | Advanced Micro Devices, Inc. | System and method for generating re-configurable band limited noise using modulation |
| JPH1091194A (ja) * | 1996-09-18 | 1998-04-10 | Sony Corp | 音声復号化方法及び装置 |
-
1997
- 1997-05-15 EP EP97303321A patent/EP0878790A1/en not_active Withdrawn
-
1998
- 1998-05-15 JP JP54895098A patent/JP4843124B2/ja not_active Expired - Lifetime
- 1998-05-15 WO PCT/GB1998/001414 patent/WO1998052187A1/en not_active Ceased
- 1998-05-15 EP EP98921630A patent/EP0981816B9/en not_active Expired - Lifetime
- 1998-05-15 US US09/423,758 patent/US6675144B1/en not_active Expired - Lifetime
- 1998-05-15 DE DE69816810T patent/DE69816810T2/de not_active Expired - Lifetime
-
2003
- 2003-07-18 US US10/622,856 patent/US20040019492A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| DE69816810D1 (de) | 2003-09-04 |
| JP2001525079A (ja) | 2001-12-04 |
| US6675144B1 (en) | 2004-01-06 |
| EP0981816B9 (en) | 2004-08-11 |
| EP0878790A1 (en) | 1998-11-18 |
| US20040019492A1 (en) | 2004-01-29 |
| WO1998052187A1 (en) | 1998-11-19 |
| EP0981816A1 (en) | 2000-03-01 |
| EP0981816B1 (en) | 2003-07-30 |
| JP4843124B2 (ja) | 2011-12-21 |
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