MX2009004045A - Codificacion de una señal de informacion. - Google Patents
Codificacion de una señal de informacion.Info
- Publication number
- MX2009004045A MX2009004045A MX2009004045A MX2009004045A MX2009004045A MX 2009004045 A MX2009004045 A MX 2009004045A MX 2009004045 A MX2009004045 A MX 2009004045A MX 2009004045 A MX2009004045 A MX 2009004045A MX 2009004045 A MX2009004045 A MX 2009004045A
- Authority
- MX
- Mexico
- Prior art keywords
- limits
- frame
- coding
- information signal
- frames
- Prior art date
Links
- 230000001360 synchronised effect Effects 0.000 abstract 1
- 230000001052 transient effect Effects 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
-
- 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
- G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
- G10L19/025—Detection of transients or attacks for time/frequency resolution switching
-
- 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
-
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Computational Linguistics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Quality & Reliability (AREA)
- Theoretical Computer Science (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Circuits Of Receivers In General (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
El problema de transitorios puede resolverse de forma adecuada, y para este fin, puede reducirse un retraso adicional en el lado decodificador si se usa una nueva clase de trama SBR donde los límites de la trama no sean desplazados, es decir, que los límites de la retícula todavía sean sincronizados con los límites de la trama, pero donde una indicación de la posición de transitorios es usada además como elemento sintáctico para usarse, en los lados codificadores y/o decodificadores dentro de las tramas de estas nuevas clases de trama para determinar los límites de la retícula dentro de estas tramas.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006049154A DE102006049154B4 (de) | 2006-10-18 | 2006-10-18 | Kodierung eines Informationssignals |
PCT/EP2007/008527 WO2008046505A1 (de) | 2006-10-18 | 2007-10-01 | Kodierung eines informationssignals |
Publications (1)
Publication Number | Publication Date |
---|---|
MX2009004045A true MX2009004045A (es) | 2009-05-28 |
Family
ID=38657988
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX2009004045A MX2009004045A (es) | 2006-10-18 | 2007-10-01 | Codificacion de una señal de informacion. |
Country Status (20)
Country | Link |
---|---|
EP (1) | EP2057625B1 (es) |
JP (1) | JP5266234B2 (es) |
KR (1) | KR101183962B1 (es) |
CN (1) | CN101529503B (es) |
AT (1) | ATE507554T1 (es) |
AU (1) | AU2007312667B2 (es) |
BR (1) | BRPI0715555B1 (es) |
CA (1) | CA2664466C (es) |
DE (2) | DE102006049154B4 (es) |
ES (1) | ES2365433T3 (es) |
HK (1) | HK1126567A1 (es) |
IL (1) | IL197561A (es) |
MX (1) | MX2009004045A (es) |
MY (1) | MY147067A (es) |
NO (1) | NO341258B1 (es) |
PL (1) | PL2057625T3 (es) |
RU (1) | RU2413312C2 (es) |
TW (1) | TWI355648B (es) |
WO (1) | WO2008046505A1 (es) |
ZA (1) | ZA200810394B (es) |
Families Citing this family (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI559679B (zh) | 2009-02-18 | 2016-11-21 | 杜比國際公司 | 低延遲調變濾波器組及用以設計該低延遲調變濾波器組之方法 |
JP4932917B2 (ja) * | 2009-04-03 | 2012-05-16 | 株式会社エヌ・ティ・ティ・ドコモ | 音声復号装置、音声復号方法、及び音声復号プログラム |
JP4921611B2 (ja) * | 2009-04-03 | 2012-04-25 | 株式会社エヌ・ティ・ティ・ドコモ | 音声復号装置、音声復号方法、及び音声復号プログラム |
US9508351B2 (en) * | 2009-12-16 | 2016-11-29 | Dobly International AB | SBR bitstream parameter downmix |
US9338523B2 (en) * | 2009-12-21 | 2016-05-10 | Echostar Technologies L.L.C. | Audio splitting with codec-enforced frame sizes |
CN102436820B (zh) | 2010-09-29 | 2013-08-28 | 华为技术有限公司 | 高频带信号编码方法及装置、高频带信号解码方法及装置 |
EP2477188A1 (en) | 2011-01-18 | 2012-07-18 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Encoding and decoding of slot positions of events in an audio signal frame |
EP4243017A3 (en) | 2011-02-14 | 2023-11-08 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method decoding an audio signal using an aligned look-ahead portion |
MY164797A (en) | 2011-02-14 | 2018-01-30 | Fraunhofer Ges Zur Foederung Der Angewandten Forschung E V | Apparatus and method for processing a decoded audio signal in a spectral domain |
BR112012029132B1 (pt) | 2011-02-14 | 2021-10-05 | Fraunhofer - Gesellschaft Zur Förderung Der Angewandten Forschung E.V | Representação de sinal de informações utilizando transformada sobreposta |
CA2903681C (en) | 2011-02-14 | 2017-03-28 | Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. | Audio codec using noise synthesis during inactive phases |
PT2676267T (pt) | 2011-02-14 | 2017-09-26 | Fraunhofer Ges Forschung | Codificação e descodificação de posições de pulso de faixas de um sinal de áudio |
AU2012217216B2 (en) | 2011-02-14 | 2015-09-17 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Apparatus and method for coding a portion of an audio signal using a transient detection and a quality result |
EP2676266B1 (en) | 2011-02-14 | 2015-03-11 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Linear prediction based coding scheme using spectral domain noise shaping |
MY159444A (en) | 2011-02-14 | 2017-01-13 | Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E V | Encoding and decoding of pulse positions of tracks of an audio signal |
CN103620672B (zh) | 2011-02-14 | 2016-04-27 | 弗劳恩霍夫应用研究促进协会 | 用于低延迟联合语音及音频编码(usac)中的错误隐藏的装置和方法 |
KR101767175B1 (ko) | 2011-03-18 | 2017-08-10 | 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. | 오디오 코딩에서의 프레임 요소 길이 전송 |
JP5807453B2 (ja) * | 2011-08-30 | 2015-11-10 | 富士通株式会社 | 符号化方法、符号化装置および符号化プログラム |
CN107835428B (zh) * | 2012-03-02 | 2021-09-24 | 太阳专利托管公司 | 图像编码方法、图像解码方法、图像编码装置、图像解码装置及图像编码解码装置 |
JP5997592B2 (ja) * | 2012-04-27 | 2016-09-28 | 株式会社Nttドコモ | 音声復号装置 |
BR122021009022B1 (pt) | 2013-04-05 | 2022-08-16 | Dolby International Ab | Método de decodificação para decodificar dois sinais de áudio, mídia legível por computador, e decodificador para decodificar dois sinais de áudio |
KR101789083B1 (ko) | 2013-06-10 | 2017-10-23 | 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에.베. | 분포 양자화 및 코딩을 사용하는 누적 합계 표현의 모델링에 의한 오디오 신호 엔벨로프 인코딩, 처리 및 디코딩을 위한 장치 및 방법 |
SG11201510164RA (en) * | 2013-06-10 | 2016-01-28 | Fraunhofer Ges Forschung | Apparatus and method for audio signal envelope encoding, processing and decoding by splitting the audio signal envelope employing distribution quantization and coding |
WO2017050398A1 (en) * | 2015-09-25 | 2017-03-30 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Encoder, decoder and methods for signal-adaptive switching of the overlap ratio in audio transform coding |
ES2727462T3 (es) | 2016-01-22 | 2019-10-16 | Fraunhofer Ges Forschung | Aparatos y procedimientos para la codificación o decodificación de una señal multicanal de audio mediante el uso de repetición de muestreo de dominio espectral |
EP3483883A1 (en) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio coding and decoding with selective postfiltering |
EP3483886A1 (en) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Selecting pitch lag |
EP3483880A1 (en) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Temporal noise shaping |
EP3483884A1 (en) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Signal filtering |
EP3483878A1 (en) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio decoder supporting a set of different loss concealment tools |
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 |
WO2019091576A1 (en) | 2017-11-10 | 2019-05-16 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio encoders, audio decoders, methods and computer programs adapting an encoding and decoding of least significant bits |
EP3483882A1 (en) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Controlling bandwidth in encoders and/or decoders |
EP3483879A1 (en) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Analysis/synthesis windowing function for modulated lapped transformation |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3531178B2 (ja) * | 1993-05-27 | 2004-05-24 | ソニー株式会社 | ディジタル信号処理装置及び方法 |
JP3277677B2 (ja) * | 1994-04-01 | 2002-04-22 | ソニー株式会社 | 信号符号化方法及び装置、信号記録媒体、信号伝送方法、並びに信号復号化方法及び装置 |
US6978236B1 (en) * | 1999-10-01 | 2005-12-20 | Coding Technologies Ab | Efficient spectral envelope coding using variable time/frequency resolution and time/frequency switching |
BR0107420A (pt) * | 2000-11-03 | 2002-10-08 | Koninkl Philips Electronics Nv | Processos de codificação de um sinal de entrada e de decodificação, sinal modificado modelado, meio de armazenagem, decodificador, reprodutor de áudio, e ,aparelho para codificação de sinais |
MXPA03010237A (es) * | 2001-05-10 | 2004-03-16 | Dolby Lab Licensing Corp | Mejoramiento del funcionamiento de transitorios en sistemas de codificacion de audio de baja tasa de transferencia de bitios mediante la reduccion del pre-ruido. |
KR100852613B1 (ko) * | 2001-06-08 | 2008-08-18 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 오디오 신호들의 편집 |
AU2003281128A1 (en) * | 2002-07-16 | 2004-02-02 | Koninklijke Philips Electronics N.V. | Audio coding |
JP3861770B2 (ja) * | 2002-08-21 | 2006-12-20 | 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 |
JP2007504503A (ja) * | 2003-09-05 | 2007-03-01 | コニンクリユケ フィリップス エレクトロニクス エヌ.ブイ. | 低ビットレートオーディオ符号化 |
US7451091B2 (en) * | 2003-10-07 | 2008-11-11 | Matsushita Electric Industrial Co., Ltd. | Method for determining time borders and frequency resolutions for spectral envelope coding |
KR100608062B1 (ko) * | 2004-08-04 | 2006-08-02 | 삼성전자주식회사 | 오디오 데이터의 고주파수 복원 방법 및 그 장치 |
JP4822697B2 (ja) * | 2004-12-01 | 2011-11-24 | シャープ株式会社 | ディジタル信号符号化装置およびディジタル信号記録装置 |
-
2006
- 2006-10-18 DE DE102006049154A patent/DE102006049154B4/de active Active
-
2007
- 2007-10-01 RU RU2009118384/09A patent/RU2413312C2/ru active
- 2007-10-01 BR BRPI0715555-7A patent/BRPI0715555B1/pt active IP Right Grant
- 2007-10-01 MX MX2009004045A patent/MX2009004045A/es active IP Right Grant
- 2007-10-01 CA CA2664466A patent/CA2664466C/en active Active
- 2007-10-01 EP EP07818607A patent/EP2057625B1/de active Active
- 2007-10-01 JP JP2009532700A patent/JP5266234B2/ja active Active
- 2007-10-01 WO PCT/EP2007/008527 patent/WO2008046505A1/de active Application Filing
- 2007-10-01 PL PL07818607T patent/PL2057625T3/pl unknown
- 2007-10-01 DE DE502007007077T patent/DE502007007077D1/de active Active
- 2007-10-01 CN CN2007800387563A patent/CN101529503B/zh active Active
- 2007-10-01 AT AT07818607T patent/ATE507554T1/de active
- 2007-10-01 ES ES07818607T patent/ES2365433T3/es active Active
- 2007-10-01 AU AU2007312667A patent/AU2007312667B2/en active Active
- 2007-10-01 MY MYPI20091358A patent/MY147067A/en unknown
- 2007-10-01 KR KR1020097007950A patent/KR101183962B1/ko active IP Right Grant
- 2007-10-16 TW TW096138633A patent/TWI355648B/zh active
-
2008
- 2008-09-01 NO NO20083755A patent/NO341258B1/no unknown
- 2008-12-09 ZA ZA200810394A patent/ZA200810394B/xx unknown
-
2009
- 2009-03-12 IL IL197561A patent/IL197561A/en active IP Right Grant
- 2009-06-03 HK HK09104990.3A patent/HK1126567A1/xx unknown
Also Published As
Publication number | Publication date |
---|---|
CA2664466A1 (en) | 2008-04-24 |
TWI355648B (en) | 2012-01-01 |
ZA200810394B (en) | 2009-08-26 |
BRPI0715555A8 (pt) | 2019-01-15 |
MY147067A (en) | 2012-10-15 |
CN101529503B (zh) | 2012-05-09 |
DE102006049154A1 (de) | 2008-04-24 |
BRPI0715555B1 (pt) | 2020-09-15 |
PL2057625T3 (pl) | 2011-09-30 |
BRPI0715555A2 (pt) | 2014-03-18 |
CA2664466C (en) | 2015-03-17 |
NO20083755L (no) | 2008-09-01 |
AU2007312667A1 (en) | 2008-04-24 |
JP2010507113A (ja) | 2010-03-04 |
IL197561A (en) | 2013-02-28 |
ATE507554T1 (de) | 2011-05-15 |
CN101529503A (zh) | 2009-09-09 |
TW200830277A (en) | 2008-07-16 |
HK1126567A1 (en) | 2009-09-04 |
WO2008046505A1 (de) | 2008-04-24 |
RU2009118384A (ru) | 2010-11-27 |
EP2057625B1 (de) | 2011-04-27 |
NO341258B1 (no) | 2017-09-25 |
JP5266234B2 (ja) | 2013-08-21 |
IL197561A0 (en) | 2009-12-24 |
DE102006049154B4 (de) | 2009-07-09 |
KR101183962B1 (ko) | 2012-09-18 |
AU2007312667B2 (en) | 2010-09-09 |
ES2365433T3 (es) | 2011-10-05 |
KR20090073172A (ko) | 2009-07-02 |
DE502007007077D1 (de) | 2011-06-09 |
EP2057625A1 (de) | 2009-05-13 |
RU2413312C2 (ru) | 2011-02-27 |
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Legal Events
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