AR091631A1 - Codificacion de audio basada en prediccion lineal que utiliza calculo de distribucion de probabilidades mejorado - Google Patents
Codificacion de audio basada en prediccion lineal que utiliza calculo de distribucion de probabilidades mejoradoInfo
- Publication number
- AR091631A1 AR091631A1 ARP130102328A ARP130102328A AR091631A1 AR 091631 A1 AR091631 A1 AR 091631A1 AR P130102328 A ARP130102328 A AR P130102328A AR P130102328 A ARP130102328 A AR P130102328A AR 091631 A1 AR091631 A1 AR 091631A1
- Authority
- AR
- Argentina
- Prior art keywords
- coding
- probability distribution
- linear prediction
- spectral
- information
- Prior art date
Links
- 230000003595 spectral effect Effects 0.000 abstract 6
- 238000009795 derivation Methods 0.000 abstract 2
- 238000001228 spectrum Methods 0.000 abstract 1
Classifications
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- 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
- G10L19/02—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
- G10L19/032—Quantisation or dequantisation of spectral components
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
- G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
- G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
-
- 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
- G10L19/0017—Lossless audio signal coding; Perfect reconstruction of coded audio signal by transmission of coding error
-
- 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
- G10L25/12—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 prediction coefficients
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computational Linguistics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
La codificación de audio basada en predicción lineal se mejora mediante la codificación de un espectro compuesto por una pluralidad de componentes espectrales usando una estimación de la distribución de probabilidades determinada por cada uno de la pluralidad de componentes espectrales a partir de la información sobre coeficientes de predicción lineal. En particular, la información sobre coeficientes de predicción lineal está disponible de todas maneras. En consecuencia, se la puede utilizar para determinar la estimación de la distribución de probabilidades tanto del lado de la codificación como de la decodificación. Esta última determinación puede ser implementada de manera informáticamente sencilla utilizando, por ejemplo, una parametrización apropiada para la estimación de la distribución de probabilidades en la pluralidad de componentes espectrales. En general, la eficiencia de codificación provista por la codificación por entropía es compatible con las estimaciones de la distribución de probabilidades obtenidas utilizando la selección del contexto, aunque su derivación es menos compleja. Por ejemplo, la derivación puede ser puramente analítica y/o no requerir información alguna sobre los atributos de las líneas espectrales cercanas como los valores espectrales antes codificados/decodificados de las líneas espectrales contiguas como ocurre en la selección del contexto espacial.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201261665485P | 2012-06-28 | 2012-06-28 | |
| PCT/EP2013/062809 WO2014001182A1 (en) | 2012-06-28 | 2013-06-19 | Linear prediction based audio coding using improved probability distribution estimation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AR091631A1 true AR091631A1 (es) | 2015-02-18 |
Family
ID=48669969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ARP130102328A AR091631A1 (es) | 2012-06-28 | 2013-06-28 | Codificacion de audio basada en prediccion lineal que utiliza calculo de distribucion de probabilidades mejorado |
Country Status (20)
| Country | Link |
|---|---|
| US (1) | US9536533B2 (es) |
| EP (1) | EP2867892B1 (es) |
| JP (1) | JP6113278B2 (es) |
| KR (2) | KR101866806B1 (es) |
| CN (1) | CN104584122B (es) |
| AR (1) | AR091631A1 (es) |
| AU (1) | AU2013283568B2 (es) |
| BR (1) | BR112014032735B1 (es) |
| CA (1) | CA2877161C (es) |
| ES (1) | ES2644131T3 (es) |
| HK (1) | HK1210316A1 (es) |
| MX (1) | MX353385B (es) |
| MY (1) | MY168806A (es) |
| PL (1) | PL2867892T3 (es) |
| PT (1) | PT2867892T (es) |
| RU (1) | RU2651187C2 (es) |
| SG (1) | SG11201408677YA (es) |
| TW (1) | TWI520129B (es) |
| WO (1) | WO2014001182A1 (es) |
| ZA (1) | ZA201500504B (es) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2925734C (en) | 2013-10-18 | 2018-07-10 | Guillaume Fuchs | Coding of spectral coefficients of a spectrum of an audio signal |
| EP2919232A1 (en) * | 2014-03-14 | 2015-09-16 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Encoder, decoder and method for encoding and decoding |
| KR101837153B1 (ko) | 2014-05-01 | 2018-03-09 | 니폰 덴신 덴와 가부시끼가이샤 | 주기성 통합 포락 계열 생성 장치, 주기성 통합 포락 계열 생성 방법, 주기성 통합 포락 계열 생성 프로그램, 기록매체 |
| PL3594948T3 (pl) | 2014-05-08 | 2021-08-30 | Telefonaktiebolaget Lm Ericsson (Publ) | Klasyfikator sygnału audio |
| EP2980793A1 (en) | 2014-07-28 | 2016-02-03 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Encoder, decoder, system and methods for encoding and decoding |
| US10057383B2 (en) | 2015-01-21 | 2018-08-21 | Microsoft Technology Licensing, Llc | Sparsity estimation for data transmission |
| EP3252768B1 (en) * | 2015-01-30 | 2020-08-19 | Nippon Telegraph and Telephone Corporation | Parameter determination device, method, program, and recording medium |
| EP3382700A1 (en) | 2017-03-31 | 2018-10-03 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for post-processing an audio signal using a transient location detection |
| EP3382701A1 (en) * | 2017-03-31 | 2018-10-03 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for post-processing an audio signal using prediction based shaping |
| CN114172891B (zh) * | 2021-11-19 | 2024-02-13 | 湖南遥昇通信技术有限公司 | 基于加权概率编码的提升ftp传输安全性方法、设备及介质 |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100322706B1 (ko) * | 1995-09-25 | 2002-06-20 | 윤종용 | 선형예측부호화계수의부호화및복호화방법 |
| US6353808B1 (en) * | 1998-10-22 | 2002-03-05 | Sony Corporation | Apparatus and method for encoding a signal as well as apparatus and method for decoding a signal |
| US6658383B2 (en) * | 2001-06-26 | 2003-12-02 | Microsoft Corporation | Method for coding speech and music signals |
| CA2457988A1 (en) * | 2004-02-18 | 2005-08-18 | Voiceage Corporation | Methods and devices for audio compression based on acelp/tcx coding and multi-rate lattice vector quantization |
| US8515767B2 (en) * | 2007-11-04 | 2013-08-20 | Qualcomm Incorporated | Technique for encoding/decoding of codebook indices for quantized MDCT spectrum in scalable speech and audio codecs |
| ATE518224T1 (de) * | 2008-01-04 | 2011-08-15 | Dolby Int Ab | Audiokodierer und -dekodierer |
| CN101609680B (zh) * | 2009-06-01 | 2012-01-04 | 华为技术有限公司 | 压缩编码和解码的方法、编码器和解码器以及编码装置 |
| EP2309493B1 (en) * | 2009-09-21 | 2013-08-14 | Google, Inc. | Coding and decoding of source signals using constrained relative entropy quantization |
| BR122020024243B1 (pt) * | 2009-10-20 | 2022-02-01 | Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E. V. | Codificador de sinal de áudio, decodificador de sinal de áudio, método para prover uma representação codificada de um conteúdo de áudio e método para prover uma representação decodificada de um conteúdo de áudio. |
| JP5316896B2 (ja) | 2010-03-17 | 2013-10-16 | ソニー株式会社 | 符号化装置および符号化方法、復号装置および復号方法、並びにプログラム |
| RU2445718C1 (ru) * | 2010-08-31 | 2012-03-20 | Государственное образовательное учреждение высшего профессионального образования Академия Федеральной службы охраны Российской Федерации (Академия ФСО России) | Способ выделения сегментов обработки речи на основе анализа корреляционных зависимостей в речевом сигнале |
| WO2012161675A1 (en) | 2011-05-20 | 2012-11-29 | Google Inc. | Redundant coding unit for audio codec |
-
2013
- 2013-06-19 RU RU2015102588A patent/RU2651187C2/ru active
- 2013-06-19 PL PL13730249T patent/PL2867892T3/pl unknown
- 2013-06-19 CA CA2877161A patent/CA2877161C/en active Active
- 2013-06-19 CN CN201380043524.2A patent/CN104584122B/zh active Active
- 2013-06-19 PT PT137302493T patent/PT2867892T/pt unknown
- 2013-06-19 MY MYPI2014003598A patent/MY168806A/en unknown
- 2013-06-19 EP EP13730249.3A patent/EP2867892B1/en active Active
- 2013-06-19 ES ES13730249.3T patent/ES2644131T3/es active Active
- 2013-06-19 KR KR1020177011666A patent/KR101866806B1/ko active IP Right Grant
- 2013-06-19 WO PCT/EP2013/062809 patent/WO2014001182A1/en active Application Filing
- 2013-06-19 MX MX2014015742A patent/MX353385B/es active IP Right Grant
- 2013-06-19 AU AU2013283568A patent/AU2013283568B2/en active Active
- 2013-06-19 KR KR1020157001849A patent/KR101733326B1/ko active IP Right Grant
- 2013-06-19 SG SG11201408677YA patent/SG11201408677YA/en unknown
- 2013-06-19 JP JP2015518985A patent/JP6113278B2/ja active Active
- 2013-06-19 BR BR112014032735-1A patent/BR112014032735B1/pt active IP Right Grant
- 2013-06-27 TW TW102123018A patent/TWI520129B/zh active
- 2013-06-28 AR ARP130102328A patent/AR091631A1/es active IP Right Grant
-
2014
- 2014-12-18 US US14/574,830 patent/US9536533B2/en active Active
-
2015
- 2015-01-23 ZA ZA2015/00504A patent/ZA201500504B/en unknown
- 2015-11-04 HK HK15110869.0A patent/HK1210316A1/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CN104584122B (zh) | 2017-09-15 |
| MX2014015742A (es) | 2015-04-08 |
| US9536533B2 (en) | 2017-01-03 |
| KR20170049642A (ko) | 2017-05-10 |
| CA2877161C (en) | 2020-01-21 |
| SG11201408677YA (en) | 2015-01-29 |
| JP2015525893A (ja) | 2015-09-07 |
| US20150106108A1 (en) | 2015-04-16 |
| AU2013283568B2 (en) | 2016-05-12 |
| TW201405549A (zh) | 2014-02-01 |
| KR101866806B1 (ko) | 2018-06-18 |
| RU2015102588A (ru) | 2016-08-20 |
| ZA201500504B (en) | 2016-01-27 |
| EP2867892A1 (en) | 2015-05-06 |
| HK1210316A1 (en) | 2016-04-15 |
| EP2867892B1 (en) | 2017-08-02 |
| PL2867892T3 (pl) | 2018-01-31 |
| WO2014001182A1 (en) | 2014-01-03 |
| CA2877161A1 (en) | 2014-01-03 |
| BR112014032735B1 (pt) | 2022-04-26 |
| RU2651187C2 (ru) | 2018-04-18 |
| AU2013283568A1 (en) | 2015-01-29 |
| CN104584122A (zh) | 2015-04-29 |
| TWI520129B (zh) | 2016-02-01 |
| KR20150032723A (ko) | 2015-03-27 |
| MX353385B (es) | 2018-01-10 |
| JP6113278B2 (ja) | 2017-04-12 |
| MY168806A (en) | 2018-12-04 |
| ES2644131T3 (es) | 2017-11-27 |
| KR101733326B1 (ko) | 2017-05-24 |
| PT2867892T (pt) | 2017-10-27 |
| BR112014032735A2 (pt) | 2017-06-27 |
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