CA2739736C - Schema de codage/decodage audio commute a resolution multiple - Google Patents
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- CA2739736C CA2739736C CA2739736A CA2739736A CA2739736C CA 2739736 C CA2739736 C CA 2739736C CA 2739736 A CA2739736 A CA 2739736A CA 2739736 A CA2739736 A CA 2739736A CA 2739736 C CA2739736 C CA 2739736C
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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
- G10L19/16—Vocoder architecture
- G10L19/18—Vocoders using multiple modes
- G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
-
- 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
- G10L19/04—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
- G10L19/02—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
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)
- Quality & Reliability (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
La présente invention concerne un codeur audio permettant de coder un signal audio, ledit codeur comprenant une première dérivation de codage (400) comprenant un premier convertisseur (410) pour la conversion dun signal depuis un domaine temporel vers un domaine fréquentiel. En outre, le codeur audio comprend une seconde dérivation de codage (500) comprenant un second convertisseur temps/fréquence (523). Par ailleurs, linvention concerne un analyseur de signaux (300/525). Lanalyseur de signaux détermine dune part si une partie audio est efficace dans le signal de sortie du codeur comme premier signal codé depuis la première dérivation de codage ou comme second signal codé depuis une seconde dérivation de codage. Lanalyseur de signaux détermine dautre part une résolution temps/fréquence que les convertisseurs (410, 523) doivent appliquer lors de la génération des signaux codés. Une interface de sortie comprend, en plus du premier signal codé et du second signal codé, des informations de résolution identifiant la résolution utilisée par le premier convertisseur temps/fréquence et utilisée par le second convertisseur temps/fréquence.
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10382508P | 2008-10-08 | 2008-10-08 | |
EP08017663.9 | 2008-10-08 | ||
EP08017663 | 2008-10-08 | ||
US61/103,825 | 2008-10-08 | ||
EP09002271.6 | 2009-02-18 | ||
EP09002271A EP2144230A1 (fr) | 2008-07-11 | 2009-02-18 | Schéma de codage/décodage audio à taux bas de bits disposant des commutateurs en cascade |
PCT/EP2009/007205 WO2010040522A2 (fr) | 2008-10-08 | 2009-10-07 | Schéma de codage/décodage audio commuté à résolution multiple |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2739736A1 CA2739736A1 (fr) | 2010-04-15 |
CA2739736C true CA2739736C (fr) | 2015-12-01 |
Family
ID=42101010
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2739736A Active CA2739736C (fr) | 2008-10-08 | 2009-10-07 | Schema de codage/decodage audio commute a resolution multiple |
Country Status (14)
Country | Link |
---|---|
EP (2) | EP3640941A1 (fr) |
JP (1) | JP5555707B2 (fr) |
KR (3) | KR20130069833A (fr) |
CN (1) | CN102177426B (fr) |
AR (1) | AR076060A1 (fr) |
BR (1) | BRPI0914056B1 (fr) |
CA (1) | CA2739736C (fr) |
CO (1) | CO6362072A2 (fr) |
MX (1) | MX2011003824A (fr) |
MY (1) | MY154633A (fr) |
RU (1) | RU2520402C2 (fr) |
TW (2) | TWI419148B (fr) |
WO (1) | WO2010040522A2 (fr) |
ZA (1) | ZA201102537B (fr) |
Families Citing this family (64)
Publication number | Priority date | Publication date | Assignee | Title |
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EP2460158A4 (fr) | 2009-07-27 | 2013-09-04 | Procédé et appareil de traitement d'un signal audio | |
EP2478520A4 (fr) * | 2009-09-17 | 2013-08-28 | Univ Yonsei Iacf | Procédé et appareil destinés au traitement d'un signal audio |
WO2011147950A1 (fr) * | 2010-05-28 | 2011-12-01 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Codec vocal et audio unifié à faible retard |
US9275650B2 (en) | 2010-06-14 | 2016-03-01 | Panasonic Corporation | Hybrid audio encoder and hybrid audio decoder which perform coding or decoding while switching between different codecs |
HUE039862T2 (hu) | 2010-07-02 | 2019-02-28 | Dolby Int Ab | Audio dekódolás szelektív utószûréssel |
PT3751564T (pt) * | 2010-07-20 | 2023-01-06 | Fraunhofer Ges Forschung | Descodificador de áudio, método de descodificação de áudio e programa de computador |
RU2560788C2 (ru) | 2011-02-14 | 2015-08-20 | Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. | Устройство и способ для обработки декодированного аудиосигнала в спектральной области |
CN105304090B (zh) | 2011-02-14 | 2019-04-09 | 弗劳恩霍夫应用研究促进协会 | 使用对齐的前瞻部分将音频信号编码及解码的装置与方法 |
JP5849106B2 (ja) | 2011-02-14 | 2016-01-27 | 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 | 低遅延の統合されたスピーチ及びオーディオ符号化におけるエラー隠しのための装置及び方法 |
PT2676270T (pt) | 2011-02-14 | 2017-05-02 | Fraunhofer Ges Forschung | Codificação de uma parte de um sinal de áudio utilizando uma deteção de transiente e um resultado de qualidade |
JP5625126B2 (ja) | 2011-02-14 | 2014-11-12 | 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 | スペクトル領域ノイズ整形を使用する線形予測ベースコーディングスキーム |
TWI488176B (zh) * | 2011-02-14 | 2015-06-11 | Fraunhofer Ges Forschung | 音訊信號音軌脈衝位置之編碼與解碼技術 |
MX2013009305A (es) | 2011-02-14 | 2013-10-03 | Fraunhofer Ges Forschung | Generacion de ruido en codecs de audio. |
JP5800915B2 (ja) | 2011-02-14 | 2015-10-28 | フラウンホッファー−ゲゼルシャフト ツァ フェルダールング デァ アンゲヴァンテン フォアシュンク エー.ファオ | オーディオ信号のトラックのパルス位置の符号化および復号化 |
SG185519A1 (en) | 2011-02-14 | 2012-12-28 | Fraunhofer Ges Forschung | Information signal representation using lapped transform |
TWI480857B (zh) | 2011-02-14 | 2015-04-11 | Fraunhofer Ges Forschung | 在不活動階段期間利用雜訊合成之音訊編解碼器 |
EP2700072A4 (fr) | 2011-04-21 | 2016-01-20 | Samsung Electronics Co Ltd | Appareil de quantification de coefficients de codage prédictif linéaire, appareil de codage de son, appareil de déquantification de coefficients de codage prédictif linéaire, appareil de décodage de son et dispositif électronique s'y rapportant |
RU2619710C2 (ru) | 2011-04-21 | 2017-05-17 | Самсунг Электроникс Ко., Лтд. | Способ квантования коэффициентов кодирования с линейным предсказанием, способ кодирования звука, способ деквантования коэффициентов кодирования с линейным предсказанием, способ декодирования звука и носитель записи |
CN106157968B (zh) * | 2011-06-30 | 2019-11-29 | 三星电子株式会社 | 用于产生带宽扩展信号的设备和方法 |
CN104040624B (zh) | 2011-11-03 | 2017-03-01 | 沃伊斯亚吉公司 | 改善低速率码激励线性预测解码器的非语音内容 |
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US9489962B2 (en) * | 2012-05-11 | 2016-11-08 | Panasonic Corporation | Sound signal hybrid encoder, sound signal hybrid decoder, sound signal encoding method, and sound signal decoding method |
EP3933836A1 (fr) | 2012-11-13 | 2022-01-05 | Samsung Electronics Co., Ltd. | Procédé et appareil de détermination de mode de codage, procédé et appareil de codage de signaux audio et procédé et appareil de décodage de signaux audio |
BR112015014212B1 (pt) * | 2012-12-21 | 2021-10-19 | Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. | Geração de um ruído de conforto com alta resolução espectro-temporal em transmissão descontínua de sinais de audio |
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EP2345030A2 (fr) | 2011-07-20 |
TWI419148B (zh) | 2013-12-11 |
ZA201102537B (en) | 2011-12-28 |
MX2011003824A (es) | 2011-05-02 |
RU2011117699A (ru) | 2012-11-10 |
KR20130133917A (ko) | 2013-12-09 |
JP5555707B2 (ja) | 2014-07-23 |
EP3640941A1 (fr) | 2020-04-22 |
CN102177426A (zh) | 2011-09-07 |
AU2009301358A1 (en) | 2010-04-15 |
TWI520128B (zh) | 2016-02-01 |
CA2739736A1 (fr) | 2010-04-15 |
BRPI0914056A2 (pt) | 2015-11-03 |
WO2010040522A2 (fr) | 2010-04-15 |
JP2012505423A (ja) | 2012-03-01 |
AU2009301358A8 (en) | 2011-05-26 |
KR20110081291A (ko) | 2011-07-13 |
KR20130069833A (ko) | 2013-06-26 |
TW201344679A (zh) | 2013-11-01 |
TW201142827A (en) | 2011-12-01 |
CN102177426B (zh) | 2014-11-05 |
RU2520402C2 (ru) | 2014-06-27 |
MY154633A (en) | 2015-07-15 |
WO2010040522A3 (fr) | 2010-09-02 |
AR076060A1 (es) | 2011-05-18 |
KR101403115B1 (ko) | 2014-06-27 |
CO6362072A2 (es) | 2012-01-20 |
BRPI0914056B1 (pt) | 2019-07-02 |
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