ZA200606713B - Classification of audio signals - Google Patents
Classification of audio signals Download PDFInfo
- Publication number
- ZA200606713B ZA200606713B ZA200606713A ZA200606713A ZA200606713B ZA 200606713 B ZA200606713 B ZA 200606713B ZA 200606713 A ZA200606713 A ZA 200606713A ZA 200606713 A ZA200606713 A ZA 200606713A ZA 200606713 B ZA200606713 B ZA 200606713B
- Authority
- ZA
- South Africa
- Prior art keywords
- excitation
- sub
- audio signal
- signal
- sub bands
- Prior art date
Links
- 230000005236 sound signal Effects 0.000 title claims description 92
- 230000005284 excitation Effects 0.000 claims description 189
- 238000000034 method Methods 0.000 claims description 55
- 238000004364 calculation method Methods 0.000 claims description 11
- 238000004590 computer program Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 9
- 230000003044 adaptive effect Effects 0.000 claims description 6
- 238000010295 mobile communication Methods 0.000 claims description 4
- 230000006835 compression Effects 0.000 description 19
- 238000007906 compression Methods 0.000 description 19
- 238000005259 measurement Methods 0.000 description 14
- 238000004458 analytical method Methods 0.000 description 11
- 238000004422 calculation algorithm Methods 0.000 description 10
- 238000003786 synthesis reaction Methods 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 7
- 238000004891 communication Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 230000006837 decompression Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000005070 sampling Methods 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000010267 cellular communication Effects 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 101150085086 tatA gene Proteins 0.000 description 1
- 230000001755 vocal effect Effects 0.000 description 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
- G10L19/04—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
- G10L19/16—Vocoder architecture
- G10L19/18—Vocoders using multiple modes
- G10L19/20—Vocoders using multiple modes using sound class specific coding, hybrid encoders or object based coding
-
- 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
- G10L19/16—Vocoder architecture
- G10L19/18—Vocoders using multiple modes
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computational Linguistics (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)
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
- Stereophonic System (AREA)
- Stereo-Broadcasting Methods (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20045051A FI118834B (fi) | 2004-02-23 | 2004-02-23 | Audiosignaalien luokittelu |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA200606713B true ZA200606713B (en) | 2007-11-28 |
Family
ID=31725817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA200606713A ZA200606713B (en) | 2004-02-23 | 2006-08-14 | Classification of audio signals |
Country Status (16)
| Country | Link |
|---|---|
| US (1) | US8438019B2 (ko) |
| EP (1) | EP1719119B1 (ko) |
| JP (1) | JP2007523372A (ko) |
| KR (2) | KR20080093074A (ko) |
| CN (2) | CN103177726B (ko) |
| AT (1) | ATE456847T1 (ko) |
| AU (1) | AU2005215744A1 (ko) |
| BR (1) | BRPI0508328A (ko) |
| CA (1) | CA2555352A1 (ko) |
| DE (1) | DE602005019138D1 (ko) |
| ES (1) | ES2337270T3 (ko) |
| FI (1) | FI118834B (ko) |
| RU (1) | RU2006129870A (ko) |
| TW (1) | TWI280560B (ko) |
| WO (1) | WO2005081230A1 (ko) |
| ZA (1) | ZA200606713B (ko) |
Families Citing this family (35)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100647336B1 (ko) * | 2005-11-08 | 2006-11-23 | 삼성전자주식회사 | 적응적 시간/주파수 기반 오디오 부호화/복호화 장치 및방법 |
| BRPI0707135A2 (pt) * | 2006-01-18 | 2011-04-19 | Lg Electronics Inc. | aparelho e método para codificação e decodificação de sinal |
| US8015000B2 (en) * | 2006-08-03 | 2011-09-06 | Broadcom Corporation | Classification-based frame loss concealment for audio signals |
| US20080033583A1 (en) * | 2006-08-03 | 2008-02-07 | Broadcom Corporation | Robust Speech/Music Classification for Audio Signals |
| US7877253B2 (en) | 2006-10-06 | 2011-01-25 | Qualcomm Incorporated | Systems, methods, and apparatus for frame erasure recovery |
| KR101379263B1 (ko) * | 2007-01-12 | 2014-03-28 | 삼성전자주식회사 | 대역폭 확장 복호화 방법 및 장치 |
| US8380494B2 (en) * | 2007-01-24 | 2013-02-19 | P.E.S. Institute Of Technology | Speech detection using order statistics |
| CN101647059B (zh) | 2007-02-26 | 2012-09-05 | 杜比实验室特许公司 | 增强娱乐音频中的语音的方法和设备 |
| US8982744B2 (en) * | 2007-06-06 | 2015-03-17 | Broadcom Corporation | Method and system for a subband acoustic echo canceller with integrated voice activity detection |
| US9653088B2 (en) * | 2007-06-13 | 2017-05-16 | Qualcomm Incorporated | Systems, methods, and apparatus for signal encoding using pitch-regularizing and non-pitch-regularizing coding |
| US20090043577A1 (en) * | 2007-08-10 | 2009-02-12 | Ditech Networks, Inc. | Signal presence detection using bi-directional communication data |
| US20110035215A1 (en) * | 2007-08-28 | 2011-02-10 | Haim Sompolinsky | Method, device and system for speech recognition |
| RU2010125221A (ru) * | 2007-11-21 | 2011-12-27 | ЭлДжи ЭЛЕКТРОНИКС ИНК. (KR) | Способ и устройство для обработки сигнала |
| DE102008022125A1 (de) * | 2008-05-05 | 2009-11-19 | Siemens Aktiengesellschaft | Verfahren und Vorrichtung zur Klassifikation von schallerzeugenden Prozessen |
| EP2144230A1 (en) * | 2008-07-11 | 2010-01-13 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Low bitrate audio encoding/decoding scheme having cascaded switches |
| KR101649376B1 (ko) * | 2008-10-13 | 2016-08-31 | 한국전자통신연구원 | Ｍｄｃｔ 기반 음성/오디오 통합 부호화기의 ｌｐｃ 잔차신호 부호화/복호화 장치 |
| US8606569B2 (en) * | 2009-07-02 | 2013-12-10 | Alon Konchitsky | Automatic determination of multimedia and voice signals |
| US8340964B2 (en) * | 2009-07-02 | 2012-12-25 | Alon Konchitsky | Speech and music discriminator for multi-media application |
| KR101615262B1 (ko) | 2009-08-12 | 2016-04-26 | 삼성전자주식회사 | 시멘틱 정보를 이용한 멀티 채널 오디오 인코딩 및 디코딩 방법 및 장치 |
| JP5395649B2 (ja) * | 2009-12-24 | 2014-01-22 | 日本電信電話株式会社 | 符号化方法、復号方法、符号化装置、復号装置及びプログラム |
| KR101730356B1 (ko) | 2010-07-02 | 2017-04-27 | 돌비 인터네셔널 에이비 | 선택적인 베이스 포스트 필터 |
| SG186950A1 (en) * | 2010-07-08 | 2013-02-28 | Fraunhofer Ges Forschung | Coder using forward aliasing cancellation |
| BR112013020592B1 (pt) | 2011-02-14 | 2021-06-22 | Fraunhofer-Gellschaft Zur Fôrderung Der Angewandten Forschung E. V. | Codec de áudio utilizando síntese de ruído durante fases inativas |
| AR085361A1 (es) | 2011-02-14 | 2013-09-25 | Fraunhofer Ges Forschung | Codificacion y decodificacion de posiciones de los pulsos de las pistas de una señal de audio |
| CA2920964C (en) | 2011-02-14 | 2017-08-29 | Christian Helmrich | Apparatus and method for coding a portion of an audio signal using a transient detection and a quality result |
| JP5934259B2 (ja) * | 2011-02-14 | 2016-06-15 | フラウンホーファー−ゲゼルシャフト・ツール・フェルデルング・デル・アンゲヴァンテン・フォルシュング・アインゲトラーゲネル・フェライン | オーディオコーデックにおけるノイズ生成 |
| ES2458436T3 (es) | 2011-02-14 | 2014-05-05 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Representación de señal de información utilizando transformada superpuesta |
| MX2013009344A (es) | 2011-02-14 | 2013-10-01 | Fraunhofer Ges Forschung | Aparato y metodo para procesar una señal de audio decodificada en un dominio espectral. |
| BR112013020324B8 (pt) | 2011-02-14 | 2022-02-08 | Fraunhofer Ges Forschung | Aparelho e método para supressão de erro em fala unificada de baixo atraso e codificação de áudio |
| RU2586838C2 (ru) | 2011-02-14 | 2016-06-10 | Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. | Аудиокодек, использующий синтез шума в течение неактивной фазы |
| CN102982804B (zh) * | 2011-09-02 | 2017-05-03 | 杜比实验室特许公司 | 音频分类方法和系统 |
| US9111531B2 (en) * | 2012-01-13 | 2015-08-18 | Qualcomm Incorporated | Multiple coding mode signal classification |
| WO2013141638A1 (ko) * | 2012-03-21 | 2013-09-26 | 삼성전자 주식회사 | 대역폭 확장을 위한 고주파수 부호화/복호화 방법 및 장치 |
| KR102446441B1 (ko) | 2012-11-13 | 2022-09-22 | 삼성전자주식회사 | 부호화 모드 결정방법 및 장치, 오디오 부호화방법 및 장치와, 오디오 복호화방법 및 장치 |
| CN107424621B (zh) | 2014-06-24 | 2021-10-26 | 华为技术有限公司 | 音频编码方法和装置 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2746039B2 (ja) * | 1993-01-22 | 1998-04-28 | 日本電気株式会社 | 音声符号化方式 |
| US6134518A (en) * | 1997-03-04 | 2000-10-17 | International Business Machines Corporation | Digital audio signal coding using a CELP coder and a transform coder |
| ES2247741T3 (es) | 1998-01-22 | 2006-03-01 | Deutsche Telekom Ag | Metodo para conmutacion controlada por señales entre esquemas de codificacion de audio. |
| US6311154B1 (en) * | 1998-12-30 | 2001-10-30 | Nokia Mobile Phones Limited | Adaptive windows for analysis-by-synthesis CELP-type speech coding |
| US6640208B1 (en) | 2000-09-12 | 2003-10-28 | Motorola, Inc. | Voiced/unvoiced speech classifier |
| US6615169B1 (en) * | 2000-10-18 | 2003-09-02 | Nokia Corporation | High frequency enhancement layer coding in wideband speech codec |
| KR100367700B1 (ko) * | 2000-11-22 | 2003-01-10 | 엘지전자 주식회사 | 음성부호화기의 유/무성음정보 추정방법 |
| US6658383B2 (en) | 2001-06-26 | 2003-12-02 | Microsoft Corporation | Method for coding speech and music signals |
-
2004
- 2004-02-23 FI FI20045051A patent/FI118834B/fi active
-
2005
- 2005-02-16 KR KR1020087023376A patent/KR20080093074A/ko not_active Application Discontinuation
- 2005-02-16 CN CN201310059627.XA patent/CN103177726B/zh active Active
- 2005-02-16 RU RU2006129870/09A patent/RU2006129870A/ru not_active Application Discontinuation
- 2005-02-16 KR KR1020067019490A patent/KR100962681B1/ko active IP Right Grant
- 2005-02-16 JP JP2006553606A patent/JP2007523372A/ja not_active Withdrawn
- 2005-02-16 WO PCT/FI2005/050035 patent/WO2005081230A1/en active Application Filing
- 2005-02-16 ES ES05708203T patent/ES2337270T3/es active Active
- 2005-02-16 DE DE602005019138T patent/DE602005019138D1/de active Active
- 2005-02-16 CA CA002555352A patent/CA2555352A1/en not_active Abandoned
- 2005-02-16 BR BRPI0508328-1A patent/BRPI0508328A/pt not_active Application Discontinuation
- 2005-02-16 EP EP05708203A patent/EP1719119B1/en active Active
- 2005-02-16 AT AT05708203T patent/ATE456847T1/de not_active IP Right Cessation
- 2005-02-16 CN CNA2005800056082A patent/CN1922658A/zh active Pending
- 2005-02-16 AU AU2005215744A patent/AU2005215744A1/en not_active Abandoned
- 2005-02-21 TW TW094104984A patent/TWI280560B/zh not_active IP Right Cessation
- 2005-02-22 US US11/063,664 patent/US8438019B2/en active Active
-
2006
- 2006-08-14 ZA ZA200606713A patent/ZA200606713B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| AU2005215744A1 (en) | 2005-09-01 |
| CN1922658A (zh) | 2007-02-28 |
| RU2006129870A (ru) | 2008-03-27 |
| BRPI0508328A (pt) | 2007-08-07 |
| FI20045051A0 (fi) | 2004-02-23 |
| DE602005019138D1 (de) | 2010-03-18 |
| ES2337270T3 (es) | 2010-04-22 |
| TW200532646A (en) | 2005-10-01 |
| KR100962681B1 (ko) | 2010-06-11 |
| CN103177726A (zh) | 2013-06-26 |
| CA2555352A1 (en) | 2005-09-01 |
| ATE456847T1 (de) | 2010-02-15 |
| US8438019B2 (en) | 2013-05-07 |
| WO2005081230A1 (en) | 2005-09-01 |
| EP1719119B1 (en) | 2010-01-27 |
| KR20070088276A (ko) | 2007-08-29 |
| US20050192798A1 (en) | 2005-09-01 |
| EP1719119A1 (en) | 2006-11-08 |
| KR20080093074A (ko) | 2008-10-17 |
| FI20045051A (fi) | 2005-08-24 |
| JP2007523372A (ja) | 2007-08-16 |
| TWI280560B (en) | 2007-05-01 |
| CN103177726B (zh) | 2016-11-02 |
| FI118834B (fi) | 2008-03-31 |
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