MX347080B - Llenado con ruido sin informacion secundaria para celp (para codificadores tipo celp). - Google Patents
Llenado con ruido sin informacion secundaria para celp (para codificadores tipo celp).Info
- Publication number
- MX347080B MX347080B MX2015009750A MX2015009750A MX347080B MX 347080 B MX347080 B MX 347080B MX 2015009750 A MX2015009750 A MX 2015009750A MX 2015009750 A MX2015009750 A MX 2015009750A MX 347080 B MX347080 B MX 347080B
- Authority
- MX
- Mexico
- Prior art keywords
- noise
- information
- tilt
- current frame
- noise level
- Prior art date
Links
- 238000000034 method Methods 0.000 abstract 3
- 230000005236 sound signal Effects 0.000 abstract 3
- 238000004590 computer program 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
- G10L19/04—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
-
- 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
- G10L19/002—Dynamic bit allocation
-
- 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
- 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
- G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders
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)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
Esta invención se refiere a un decodificador de audio para una información de audio decodificada en función de una información de audio codificada que comprende coeficientes de predicción lineal (LPC), un método respectivo, un programa de computadora respectivo para realizar tal método y una señal de audio para un medio de almacenamiento que tiene almacenado tal señal de audio, habiendo sido tratada la señal de audio con dicho método. El decodificador de audio comprende un ajustador de inclinación configurado para ajustar una inclinación del ruido usando coeficientes de predicción lineal de una trama actual para obtener una información de inclinación y un dispositivo de inserción de ruido configurado para sumar el ruido a la trama actual dependiendo de la información de inclinación obtenida por el calculador de inclinación. Otro decodificador de audio de acuerdo con la invención comprende un estimador de nivel de ruido configurado para estimar un nivel de ruido para una trama actual usando un coeficiente de predicción lineal de por lo menos una trama previa para obtener una información de nivel de ruido, y un dispositivo de inserción de ruido configurado para sumar un ruido a la trama actual dependiendo de la información de nivel de ruido proporcionada por el estimador de nivel de ruido. Así, se puede omitir información secundaria acerca del ruido de fondo en la corriente de bits.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201361758189P | 2013-01-29 | 2013-01-29 | |
| PCT/EP2014/051649 WO2014118192A2 (en) | 2013-01-29 | 2014-01-28 | Noise filling without side information for celp-like coders |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| MX2015009750A MX2015009750A (es) | 2015-11-06 |
| MX347080B true MX347080B (es) | 2017-04-11 |
Family
ID=50023580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MX2015009750A MX347080B (es) | 2013-01-29 | 2014-01-28 | Llenado con ruido sin informacion secundaria para celp (para codificadores tipo celp). |
Country Status (20)
| Country | Link |
|---|---|
| US (3) | US10269365B2 (es) |
| EP (4) | EP2951816B1 (es) |
| JP (1) | JP6181773B2 (es) |
| KR (1) | KR101794149B1 (es) |
| CN (3) | CN117392990A (es) |
| AR (1) | AR094677A1 (es) |
| AU (1) | AU2014211486B2 (es) |
| BR (1) | BR112015018020B1 (es) |
| CA (2) | CA2899542C (es) |
| ES (3) | ES2732560T3 (es) |
| MX (1) | MX347080B (es) |
| MY (1) | MY180912A (es) |
| PL (3) | PL3121813T3 (es) |
| PT (2) | PT2951816T (es) |
| RU (1) | RU2648953C2 (es) |
| SG (2) | SG11201505913WA (es) |
| TR (1) | TR201908919T4 (es) |
| TW (1) | TWI536368B (es) |
| WO (1) | WO2014118192A2 (es) |
| ZA (1) | ZA201506320B (es) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2899542C (en) * | 2013-01-29 | 2020-08-04 | Guillaume Fuchs | Noise filling without side information for celp-like coders |
| KR101737254B1 (ko) * | 2013-01-29 | 2017-05-17 | 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. | 오디오 신호, 디코더, 인코더, 시스템 및 컴퓨터 프로그램을 합성하기 위한 장치 및 방법 |
| WO2014202784A1 (en) | 2013-06-21 | 2014-12-24 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for improved signal fade out for switched audio coding systems during error concealment |
| US10008214B2 (en) * | 2015-09-11 | 2018-06-26 | Electronics And Telecommunications Research Institute | USAC audio signal encoding/decoding apparatus and method for digital radio services |
| JP6611042B2 (ja) * | 2015-12-02 | 2019-11-27 | パナソニックＩｐマネジメント株式会社 | 音声信号復号装置及び音声信号復号方法 |
| US10582754B2 (en) | 2017-03-08 | 2020-03-10 | Toly Management Ltd. | Cosmetic container |
| WO2019081089A1 (en) * | 2017-10-27 | 2019-05-02 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | MITIGATION OF NOISE AT THE LEVEL OF A DECODER |
| BR112021012753A2 (pt) * | 2019-01-13 | 2021-09-08 | Huawei Technologies Co., Ltd. | Método implementado por computador para codificação de áudio, dispositivo eletrônico e meio legível por computador não transitório |
| JP7528277B2 (ja) * | 2020-09-02 | 2024-08-05 | グーグル エルエルシー | データ密度の勾配の推定による条件付き出力生成 |
| WO2023118605A1 (en) * | 2021-12-23 | 2023-06-29 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Method and apparatus for spectrotemporally improved spectral gap filling in audio coding using a filtering |
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| RU2237296C2 (ru) * | 1998-11-23 | 2004-09-27 | Телефонактиеболагет Лм Эрикссон (Пабл) | Кодирование речи с функцией изменения комфортного шума для повышения точности воспроизведения |
| JP3490324B2 (ja) * | 1999-02-15 | 2004-01-26 | 日本電信電話株式会社 | 音響信号符号化装置、復号化装置、これらの方法、及びプログラム記録媒体 |
| US6691085B1 (en) * | 2000-10-18 | 2004-02-10 | Nokia Mobile Phones Ltd. | Method and system for estimating artificial high band signal in speech codec using voice activity information |
| CA2327041A1 (en) * | 2000-11-22 | 2002-05-22 | Voiceage Corporation | A method for indexing pulse positions and signs in algebraic codebooks for efficient coding of wideband signals |
| US6941263B2 (en) * | 2001-06-29 | 2005-09-06 | Microsoft Corporation | Frequency domain postfiltering for quality enhancement of coded speech |
| US8725499B2 (en) * | 2006-07-31 | 2014-05-13 | Qualcomm Incorporated | Systems, methods, and apparatus for signal change detection |
| WO2008032828A1 (en) * | 2006-09-15 | 2008-03-20 | Panasonic Corporation | Audio encoding device and audio encoding method |
| WO2008120438A1 (ja) * | 2007-03-02 | 2008-10-09 | Panasonic Corporation | ポストフィルタ、復号装置およびポストフィルタ処理方法 |
| DE602008005250D1 (de) * | 2008-01-04 | 2011-04-14 | Dolby Sweden Ab | Audiokodierer und -dekodierer |
| CN101965612B (zh) | 2008-03-03 | 2012-08-29 | Lg电子株式会社 | 用于处理音频信号的方法和装置 |
| BR122021009252B1 (pt) * | 2008-07-11 | 2022-03-03 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V. | Codificador e decodificador de áudio para estruturas de codificação de sinais de áudio amostrados |
| KR101400535B1 (ko) * | 2008-07-11 | 2014-05-28 | 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. | 시간 워프 활성 신호의 제공 및 이를 이용한 오디오 신호의 인코딩 |
| MX2011000375A (es) | 2008-07-11 | 2011-05-19 | Fraunhofer Ges Forschung | Codificador y decodificador de audio para codificar y decodificar tramas de una señal de audio muestreada. |
| CA2730200C (en) * | 2008-07-11 | 2016-09-27 | Max Neuendorf | An apparatus and a method for generating bandwidth extension output data |
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| EP2144171B1 (en) * | 2008-07-11 | 2018-05-16 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio encoder and decoder for encoding and decoding frames of a sampled audio signal |
| TWI413109B (zh) | 2008-10-01 | 2013-10-21 | Dolby Lab Licensing Corp | 用於上混系統之解相關器 |
| KR20130133917A (ko) | 2008-10-08 | 2013-12-09 | 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. | 다중 분해능 스위치드 오디오 부호화/복호화 방법 |
| EP4571739A1 (en) * | 2009-10-20 | 2025-06-18 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio signal encoder, audio signal decoder, method for encoding or decoding an audio signal using an aliasing-cancellation |
| MY164399A (en) * | 2009-10-20 | 2017-12-15 | Fraunhofer Ges Forschung | Multi-mode audio codec and celp coding adapted therefore |
| CN102081927B (zh) * | 2009-11-27 | 2012-07-18 | 中兴通讯股份有限公司 | 一种可分层音频编码、解码方法及系统 |
| 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 |
| DE102010015163A1 (de) | 2010-04-16 | 2011-10-20 | Liebherr-Hydraulikbagger Gmbh | Baumaschine oder Umschlaggerät |
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| KR101826331B1 (ko) * | 2010-09-15 | 2018-03-22 | 삼성전자주식회사 | 고주파수 대역폭 확장을 위한 부호화/복호화 장치 및 방법 |
| 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 |
| US9037456B2 (en) * | 2011-07-26 | 2015-05-19 | Google Technology Holdings LLC | Method and apparatus for audio coding and decoding |
| CA2899542C (en) * | 2013-01-29 | 2020-08-04 | Guillaume Fuchs | Noise filling without side information for celp-like coders |
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2014
- 2014-01-28 CA CA2899542A patent/CA2899542C/en active Active
- 2014-01-28 CA CA2960854A patent/CA2960854C/en active Active
- 2014-01-28 PT PT14701567T patent/PT2951816T/pt unknown
- 2014-01-28 ES ES14701567T patent/ES2732560T3/es active Active
- 2014-01-28 CN CN202311306515.XA patent/CN117392990A/zh active Pending
- 2014-01-28 SG SG11201505913WA patent/SG11201505913WA/en unknown
- 2014-01-28 EP EP14701567.1A patent/EP2951816B1/en active Active
- 2014-01-28 PL PL16176505T patent/PL3121813T3/pl unknown
- 2014-01-28 AU AU2014211486A patent/AU2014211486B2/en active Active
- 2014-01-28 CN CN201480019087.5A patent/CN105264596B/zh active Active
- 2014-01-28 CN CN201910950848.3A patent/CN110827841B/zh active Active
- 2014-01-28 EP EP24220395.8A patent/EP4503023A3/en active Pending
- 2014-01-28 ES ES16176505T patent/ES2799773T3/es active Active
- 2014-01-28 JP JP2015554202A patent/JP6181773B2/ja active Active
- 2014-01-28 EP EP20155722.0A patent/EP3683793B1/en active Active
- 2014-01-28 EP EP16176505.2A patent/EP3121813B1/en active Active
- 2014-01-28 SG SG10201806073WA patent/SG10201806073WA/en unknown
- 2014-01-28 PL PL14701567T patent/PL2951816T3/pl unknown
- 2014-01-28 MY MYPI2015001893A patent/MY180912A/en unknown
- 2014-01-28 BR BR112015018020-5A patent/BR112015018020B1/pt active IP Right Grant
- 2014-01-28 TR TR2019/08919T patent/TR201908919T4/tr unknown
- 2014-01-28 WO PCT/EP2014/051649 patent/WO2014118192A2/en not_active Ceased
- 2014-01-28 MX MX2015009750A patent/MX347080B/es active IP Right Grant
- 2014-01-28 ES ES20155722T patent/ES3009687T3/es active Active
- 2014-01-28 RU RU2015136787A patent/RU2648953C2/ru active
- 2014-01-28 KR KR1020157022400A patent/KR101794149B1/ko active Active
- 2014-01-28 PT PT161765052T patent/PT3121813T/pt unknown
- 2014-01-28 PL PL20155722.0T patent/PL3683793T3/pl unknown
- 2014-01-29 TW TW103103527A patent/TWI536368B/zh active
- 2014-01-29 AR ARP140100293A patent/AR094677A1/es active IP Right Grant
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2015
- 2015-07-28 US US14/811,778 patent/US10269365B2/en active Active
- 2015-08-28 ZA ZA2015/06320A patent/ZA201506320B/en unknown
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2019
- 2019-02-26 US US16/286,445 patent/US10984810B2/en active Active
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2020
- 2020-11-24 US US17/103,609 patent/US12100409B2/en active Active
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| FG | Grant or registration |