AR112582A1 - Aparato para codificar o decodificar una señal multicanal codificada usando una señal de llenado generada por un filtro de banda ancha - Google Patents
Aparato para codificar o decodificar una señal multicanal codificada usando una señal de llenado generada por un filtro de banda anchaInfo
- Publication number
- AR112582A1 AR112582A1 ARP180102127A AR112582A1 AR 112582 A1 AR112582 A1 AR 112582A1 AR P180102127 A ARP180102127 A AR P180102127A AR 112582 A1 AR112582 A1 AR 112582A1
- Authority
- AR
- Argentina
- Prior art keywords
- signal
- channel
- decode
- encode
- filter
- Prior art date
Links
- 230000003595 spectral effect Effects 0.000 abstract 4
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
- G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
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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
- G10L19/02—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
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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
- G10L19/02—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
- G10L19/0204—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 using subband decomposition
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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
- G10L19/173—Transcoding, i.e. converting between two coded representations avoiding cascaded coding-decoding
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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
- G10L19/26—Pre-filtering or post-filtering
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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
- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
- H04S2420/03—Application of parametric coding in stereophonic audio systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S3/00—Systems employing more than two channels, e.g. quadraphonic
- H04S3/008—Systems employing more than two channels, e.g. quadraphonic in which the audio signals are in digital form, i.e. employing more than two discrete digital channels
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Acoustics & Sound (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Health & Medical Sciences (AREA)
- Computational Linguistics (AREA)
- Mathematical Physics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Quality & Reliability (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Stereophonic System (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Filters And Equalizers (AREA)
Abstract
Un aparato para decodificar una señal multicanal codificada, que comprende: un decodificador de canal base (700) para decodificar una canal base codificado para obtener un canal base decodificado; un filtro decorrelador (800) para filtrar al menos una porción del canal base decodificado para obtener una señal de llenado; y un procesador multicanal (900) para realizar un procesamiento multicanal usando una representación espectral del canal base decodificado y una representación espectral de la señal de llenado, donde el filtro decorrelador (800) es un filtro de banda ancha y el procesador multicanal (900) está configurado para aplicar un procesamiento de banda estrecha a la representación espectral del canal base decodificado y a la representación espectral de la señal de llenado.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP17183841 | 2017-07-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AR112582A1 true AR112582A1 (es) | 2019-11-13 |
Family
ID=59655866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ARP180102127 AR112582A1 (es) | 2017-07-28 | 2018-07-27 | Aparato para codificar o decodificar una señal multicanal codificada usando una señal de llenado generada por un filtro de banda ancha |
Country Status (15)
| Country | Link |
|---|---|
| US (3) | US11341975B2 (es) |
| EP (3) | EP4531438A3 (es) |
| JP (5) | JP7161233B2 (es) |
| KR (1) | KR102392804B1 (es) |
| CN (4) | CN110998721B (es) |
| AR (1) | AR112582A1 (es) |
| AU (2) | AU2018308668A1 (es) |
| BR (1) | BR112020001660A2 (es) |
| CA (3) | CA3258743A1 (es) |
| ES (2) | ES2965741T3 (es) |
| PL (2) | PL4243453T3 (es) |
| RU (1) | RU2741379C1 (es) |
| SG (1) | SG11202000510VA (es) |
| TW (2) | TWI697894B (es) |
| WO (1) | WO2019020757A2 (es) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2725178C1 (ru) * | 2016-11-08 | 2020-06-30 | Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. | Устройство и способ для кодирования или декодирования многоканального сигнала с использованием коэффициента передачи побочного сигнала и коэффициента передачи остаточного сигнала |
| CA3258743A1 (en) | 2017-07-28 | 2025-10-30 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Apparatus for encoding or decoding an encoded multichannel signal using a filling signal generated by a broad band filter |
| CN113841197B (zh) * | 2019-03-14 | 2022-12-27 | 博姆云360公司 | 具有优先级的空间感知多频带压缩系统 |
| BR112022025161A2 (pt) | 2020-06-11 | 2022-12-27 | Dolby Laboratories Licensing Corp | Codificação de sinais de áudio de multicanal compreendendo a mixagem de rebaixamento de um canal de entrada primário e de dois ou mais canais de entrada não primária |
| JPWO2022050087A1 (es) * | 2020-09-03 | 2022-03-10 | ||
| CN116457878A (zh) * | 2020-10-09 | 2023-07-18 | 弗劳恩霍夫应用研究促进协会 | 使用带宽扩展来处理编码音频场景的装置、方法或计算机程序 |
| KR20230084244A (ko) * | 2020-10-09 | 2023-06-12 | 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. | 대역폭 확장을 사용하여, 인코딩된 오디오 장면을 프로세싱하기 위한 장치, 방법, 또는 컴퓨터 프로그램 |
| WO2022074202A2 (en) | 2020-10-09 | 2022-04-14 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus, method, or computer program for processing an encoded audio scene using a parameter smoothing |
| MX2023003962A (es) | 2020-10-09 | 2023-05-25 | Fraunhofer Ges Forschung | Aparato, metodo, o programa de computadora para procesar una escena de audio codificada utilizando una conversion de parametros. |
| BR112023018021A2 (pt) * | 2021-03-11 | 2023-10-03 | Fraunhofer Ges Forschung | Descorrelacionador de áudio, sistema de processamento e método para descorrelacionar um sinal de áudio |
| CN117678014B (zh) | 2021-07-08 | 2025-01-03 | 博姆云360公司 | 使用全通滤波器网络的仰角感知线索的无色生成 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6111958A (en) | 1997-03-21 | 2000-08-29 | Euphonics, Incorporated | Audio spatial enhancement apparatus and methods |
| US6928168B2 (en) * | 2001-01-19 | 2005-08-09 | Nokia Corporation | Transparent stereo widening algorithm for loudspeakers |
| CA2992051C (en) * | 2004-03-01 | 2019-01-22 | Dolby Laboratories Licensing Corporation | Reconstructing audio signals with multiple decorrelation techniques and differentially coded parameters |
| SE0202159D0 (sv) * | 2001-07-10 | 2002-07-09 | Coding Technologies Sweden Ab | Efficientand scalable parametric stereo coding for low bitrate applications |
| DE60311794C5 (de) | 2002-04-22 | 2022-11-10 | Koninklijke Philips N.V. | Signalsynthese |
| US7502743B2 (en) * | 2002-09-04 | 2009-03-10 | Microsoft Corporation | Multi-channel audio encoding and decoding with multi-channel transform selection |
| SE0400998D0 (sv) * | 2004-04-16 | 2004-04-16 | Cooding Technologies Sweden Ab | Method for representing multi-channel audio signals |
| EP1768107B1 (en) * | 2004-07-02 | 2016-03-09 | Panasonic Intellectual Property Corporation of America | Audio signal decoding device |
| TWI393121B (zh) * | 2004-08-25 | 2013-04-11 | 杜比實驗室特許公司 | 處理一組n個聲音信號之方法與裝置及與其相關聯之電腦程式 |
| SE0402649D0 (sv) | 2004-11-02 | 2004-11-02 | Coding Tech Ab | Advanced methods of creating orthogonal signals |
| JP4918490B2 (ja) * | 2005-09-02 | 2012-04-18 | パナソニック株式会社 | エネルギー整形装置及びエネルギー整形方法 |
| DE102006017280A1 (de) * | 2006-04-12 | 2007-10-18 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtung und Verfahren zum Erzeugen eines Umgebungssignals |
| US20100040243A1 (en) | 2008-08-14 | 2010-02-18 | Johnston James D | Sound Field Widening and Phase Decorrelation System and Method |
| US20090052676A1 (en) | 2007-08-20 | 2009-02-26 | Reams Robert W | Phase decorrelation for audio processing |
| WO2009045649A1 (en) * | 2007-08-20 | 2009-04-09 | Neural Audio Corporation | Phase decorrelation for audio processing |
| BRPI0908630B1 (pt) * | 2008-05-23 | 2020-09-15 | Koninklijke Philips N.V. | Aparelho de 'upmix' estéreo paramétrico, decodificador estéreo paramétrico, método para a geração de um sinal esquerdo e de um sinal direito a partir de um sinal de 'downmix' mono com base em parâmetros espaciais, dispositivo de execução de áudio, aparelho de 'downmix' estéreo paramétrico, codificador estéreo paramétrico, método para a geração de um sinal residual de previsão para um sinal de diferença a partir de um sinal esquerdo e de um sinal direito com base nos parâmetros espaciais, e, produto de programa de computador |
| JP5711555B2 (ja) | 2010-02-15 | 2015-05-07 | クラリオン株式会社 | 音像定位制御装置 |
| AU2015201672B2 (en) * | 2010-08-25 | 2016-12-22 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Apparatus for generating a decorrelated signal using transmitted phase information |
| SG2014006738A (en) * | 2010-08-25 | 2014-03-28 | Fraunhofer Ges Forschung | An apparatus for encoding an audio signal having a plurality of channels |
| 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 |
| JP5805796B2 (ja) | 2011-03-18 | 2015-11-10 | フラウンホーファーゲゼルシャフトツール フォルデルング デル アンゲヴァンテン フォルシユング エー．フアー． | 柔軟なコンフィギュレーション機能性を有するオーディオエンコーダおよびデコーダ |
| EP2830336A3 (en) * | 2013-07-22 | 2015-03-04 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Renderer controlled spatial upmix |
| EP2830053A1 (en) * | 2013-07-22 | 2015-01-28 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Multi-channel audio decoder, multi-channel audio encoder, methods and computer program using a residual-signal-based adjustment of a contribution of a decorrelated signal |
| TWI579831B (zh) | 2013-09-12 | 2017-04-21 | 杜比國際公司 | 用於參數量化的方法、用於量化的參數之解量化方法及其電腦可讀取的媒體、音頻編碼器、音頻解碼器及音頻系統 |
| JP6479786B2 (ja) * | 2013-10-21 | 2019-03-06 | ドルビー・インターナショナル・アーベー | オーディオ信号のパラメトリック再構成 |
| CN104581610B (zh) | 2013-10-24 | 2018-04-27 | 华为技术有限公司 | 一种虚拟立体声合成方法及装置 |
| EP2980795A1 (en) * | 2014-07-28 | 2016-02-03 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio encoding and decoding using a frequency domain processor, a time domain processor and a cross processor for initialization of the time domain processor |
| EP2980794A1 (en) * | 2014-07-28 | 2016-02-03 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio encoder and decoder using a frequency domain processor and a time domain processor |
| CA3258743A1 (en) | 2017-07-28 | 2025-10-30 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Apparatus for encoding or decoding an encoded multichannel signal using a filling signal generated by a broad band filter |
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2018
- 2018-07-26 CA CA3258743A patent/CA3258743A1/en active Pending
- 2018-07-26 CN CN201880049590.3A patent/CN110998721B/zh active Active
- 2018-07-26 PL PL23188147.5T patent/PL4243453T3/pl unknown
- 2018-07-26 JP JP2020504101A patent/JP7161233B2/ja active Active
- 2018-07-26 EP EP25158780.4A patent/EP4531438A3/en active Pending
- 2018-07-26 CN CN202410041929.2A patent/CN117612542A/zh active Pending
- 2018-07-26 RU RU2020108472A patent/RU2741379C1/ru active
- 2018-07-26 CN CN202410041942.8A patent/CN117690442A/zh active Pending
- 2018-07-26 ES ES18742830T patent/ES2965741T3/es active Active
- 2018-07-26 EP EP18742830.5A patent/EP3659140B1/en active Active
- 2018-07-26 BR BR112020001660-8A patent/BR112020001660A2/pt active IP Right Grant
- 2018-07-26 AU AU2018308668A patent/AU2018308668A1/en not_active Abandoned
- 2018-07-26 CA CA3258756A patent/CA3258756A1/en active Pending
- 2018-07-26 CN CN202410037965.1A patent/CN117854515A/zh active Pending
- 2018-07-26 EP EP23188147.5A patent/EP4243453B1/en active Active
- 2018-07-26 SG SG11202000510VA patent/SG11202000510VA/en unknown
- 2018-07-26 CA CA3258752A patent/CA3258752A1/en active Pending
- 2018-07-26 ES ES23188147T patent/ES3031961T3/es active Active
- 2018-07-26 PL PL18742830.5T patent/PL3659140T3/pl unknown
- 2018-07-26 KR KR1020207002678A patent/KR102392804B1/ko active Active
- 2018-07-26 WO PCT/EP2018/070326 patent/WO2019020757A2/en not_active Ceased
- 2018-07-27 TW TW108134227A patent/TWI697894B/zh active
- 2018-07-27 TW TW107126083A patent/TWI695370B/zh active
- 2018-07-27 AR ARP180102127 patent/AR112582A1/es active IP Right Grant
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2020
- 2020-01-09 US US16/738,301 patent/US11341975B2/en active Active
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2021
- 2021-08-24 AU AU2021221466A patent/AU2021221466B2/en active Active
- 2021-12-07 US US17/543,819 patent/US11790922B2/en active Active
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2022
- 2022-10-06 JP JP2022161637A patent/JP7401625B2/ja active Active
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2023
- 2023-09-11 US US18/464,574 patent/US12367886B2/en active Active
- 2023-12-07 JP JP2023206540A patent/JP7826271B2/ja active Active
- 2023-12-07 JP JP2023206541A patent/JP2024023574A/ja active Pending
- 2023-12-07 JP JP2023206539A patent/JP7804634B2/ja active Active
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