AR097001A1 - Reducción de fallas de filtro peine en mezcla descendente de canales múltiples con alineación de fase adaptativa - Google Patents
Reducción de fallas de filtro peine en mezcla descendente de canales múltiples con alineación de fase adaptativaInfo
- Publication number
- AR097001A1 AR097001A1 ARP140102704A ARP140102704A AR097001A1 AR 097001 A1 AR097001 A1 AR 097001A1 AR P140102704 A ARP140102704 A AR P140102704A AR P140102704 A ARP140102704 A AR P140102704A AR 097001 A1 AR097001 A1 AR 097001A1
- Authority
- AR
- Argentina
- Prior art keywords
- channels
- input
- peine
- reduction
- multiple channels
- Prior art date
Links
- 230000006978 adaptation Effects 0.000 title 1
- 230000005236 sound signal 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
- G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
-
- 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
-
- 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
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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
- G10L21/04—Time compression or expansion
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S3/00—Systems employing more than two channels, e.g. quadraphonic
- H04S3/02—Systems employing more than two channels, e.g. quadraphonic of the matrix type, i.e. in which input signals are combined algebraically, e.g. after having been phase shifted with respect to each other
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
- H04S2400/01—Multi-channel, i.e. more than two input channels, sound reproduction with two speakers wherein the multi-channel information is substantially preserved
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
- H04S2400/03—Aspects of down-mixing multi-channel audio to configurations with lower numbers of playback channels, e.g. 7.1 -> 5.1
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Multimedia (AREA)
- Human Computer Interaction (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Computational Linguistics (AREA)
- Mathematical Physics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Quality & Reliability (AREA)
- Algebra (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Pure & Applied Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Stereophonic System (AREA)
Abstract
Un decodificador de procesamiento de la señal de audio que tiene al menos una banda de frecuencia (36) y que está configurado para el procesamiento de una señal de audio de entrada (37) que tiene una pluralidad de canales de entrada (38) en la al menos una banda de frecuencia (36), donde el decodificador (2) está configurado para analizar la señal de entrada de audio (37), donde las dependencias entre canales (39) entre los canales de entrada (38) se identifican; y para alinear las fases de los canales de entrada (38) en base a las dependencias entre canales identificados (39), donde las fases de los canales de entrada (38) están más alineadas con respecto a la otra cuanto mayor es su dependencia entre canales (39); y someter a mezcla descendente la señal de audio de entrada alineada con una señal de audio de salida (40) que tiene un menor número de canales de salida (41) que el número de canales de entrada (38).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13177358 | 2013-07-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
AR097001A1 true AR097001A1 (es) | 2016-02-10 |
Family
ID=48874132
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ARP140102704A AR097001A1 (es) | 2013-07-22 | 2014-07-21 | Reducción de fallas de filtro peine en mezcla descendente de canales múltiples con alineación de fase adaptativa |
Country Status (18)
Country | Link |
---|---|
US (2) | US10360918B2 (es) |
EP (2) | EP2838086A1 (es) |
JP (1) | JP6279077B2 (es) |
KR (2) | KR101943601B1 (es) |
CN (2) | CN111862997A (es) |
AR (1) | AR097001A1 (es) |
AU (1) | AU2014295167B2 (es) |
BR (1) | BR112016001003B1 (es) |
CA (1) | CA2918874C (es) |
ES (1) | ES2687952T3 (es) |
MX (1) | MX359163B (es) |
PL (1) | PL3025336T3 (es) |
PT (1) | PT3025336T (es) |
RU (1) | RU2678161C2 (es) |
SG (1) | SG11201600393VA (es) |
TW (1) | TWI560702B (es) |
WO (1) | WO2015011057A1 (es) |
ZA (1) | ZA201601112B (es) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
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CN108806706B (zh) * | 2013-01-15 | 2022-11-15 | 韩国电子通信研究院 | 处理信道信号的编码/解码装置及方法 |
WO2014112793A1 (ko) | 2013-01-15 | 2014-07-24 | 한국전자통신연구원 | 채널 신호를 처리하는 부호화/복호화 장치 및 방법 |
EP2838086A1 (en) * | 2013-07-22 | 2015-02-18 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | In an reduction of comb filter artifacts in multi-channel downmix with adaptive phase alignment |
EP2830051A3 (en) | 2013-07-22 | 2015-03-04 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio encoder, audio decoder, methods and computer program using jointly encoded residual signals |
KR102160254B1 (ko) | 2014-01-10 | 2020-09-25 | 삼성전자주식회사 | 액티브다운 믹스 방식을 이용한 입체 음향 재생 방법 및 장치 |
US10217467B2 (en) * | 2016-06-20 | 2019-02-26 | Qualcomm Incorporated | Encoding and decoding of interchannel phase differences between audio signals |
CN112492502B (zh) * | 2016-07-15 | 2022-07-19 | 搜诺思公司 | 联网麦克风设备及其方法以及媒体回放系统 |
CN107731238B (zh) | 2016-08-10 | 2021-07-16 | 华为技术有限公司 | 多声道信号的编码方法和编码器 |
CN107895580B (zh) * | 2016-09-30 | 2021-06-01 | 华为技术有限公司 | 一种音频信号的重建方法和装置 |
US10362423B2 (en) * | 2016-10-13 | 2019-07-23 | Qualcomm Incorporated | Parametric audio decoding |
BR112019009424A2 (pt) | 2016-11-08 | 2019-07-30 | Fraunhofer Ges Forschung | mixador de redução, método para mixagem de redução de pelo menos dois canais, codificador multicanal, método para codificar um sinal multicanal, sistema e método de processamento de áudio |
CA3127805C (en) | 2016-11-08 | 2023-12-19 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Apparatus and method for encoding or decoding a multichannel signal using a side gain and a residual gain |
CN109427338B (zh) * | 2017-08-23 | 2021-03-30 | 华为技术有限公司 | 立体声信号的编码方法和编码装置 |
EP3550561A1 (en) | 2018-04-06 | 2019-10-09 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Downmixer, audio encoder, method and computer program applying a phase value to a magnitude value |
CN110660400B (zh) * | 2018-06-29 | 2022-07-12 | 华为技术有限公司 | 立体声信号的编码、解码方法、编码装置和解码装置 |
KR20220042165A (ko) | 2019-08-01 | 2022-04-04 | 돌비 레버러토리즈 라이쎈싱 코오포레이션 | 공분산 평활화를 위한 시스템 및 방법 |
JP2023500632A (ja) * | 2019-10-30 | 2023-01-10 | ドルビー ラボラトリーズ ライセンシング コーポレイション | 没入的音声およびオーディオ・サービスにおけるビットレート配分 |
CN113518227B (zh) * | 2020-04-09 | 2023-02-10 | 于江鸿 | 数据处理的方法和系统 |
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US20040042504A1 (en) * | 2002-09-03 | 2004-03-04 | Khoury John Michael | Aligning data bits in frequency synchronous data channels |
US20090299756A1 (en) * | 2004-03-01 | 2009-12-03 | Dolby Laboratories Licensing Corporation | Ratio of speech to non-speech audio such as for elderly or hearing-impaired listeners |
WO2005086139A1 (en) | 2004-03-01 | 2005-09-15 | Dolby Laboratories Licensing Corporation | Multichannel audio coding |
CN1942929A (zh) * | 2004-04-05 | 2007-04-04 | 皇家飞利浦电子股份有限公司 | 多信道编码器 |
JP2006050241A (ja) * | 2004-08-04 | 2006-02-16 | Matsushita Electric Ind Co Ltd | 復号化装置 |
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TW200742275A (en) * | 2006-03-21 | 2007-11-01 | Dolby Lab Licensing Corp | Low bit rate audio encoding and decoding in which multiple channels are represented by fewer channels and auxiliary information |
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KR101641685B1 (ko) * | 2010-03-29 | 2016-07-22 | 삼성전자주식회사 | 멀티채널 오디오의 다운믹스 방법 및 장치 |
KR20110116079A (ko) * | 2010-04-17 | 2011-10-25 | 삼성전자주식회사 | 멀티 채널 신호의 부호화/복호화 장치 및 방법 |
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RU2573774C2 (ru) * | 2010-08-25 | 2016-01-27 | Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. | Устройство для декодирования сигнала, содержащего переходные процессы, используя блок объединения и микшер |
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EP2838086A1 (en) * | 2013-07-22 | 2015-02-18 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | In an reduction of comb filter artifacts in multi-channel downmix with adaptive phase alignment |
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2013
- 2013-10-18 EP EP13189287.9A patent/EP2838086A1/en not_active Withdrawn
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2014
- 2014-07-18 WO PCT/EP2014/065537 patent/WO2015011057A1/en active Application Filing
- 2014-07-18 CA CA2918874A patent/CA2918874C/en active Active
- 2014-07-18 KR KR1020187005780A patent/KR101943601B1/ko active IP Right Grant
- 2014-07-18 PL PL14748143T patent/PL3025336T3/pl unknown
- 2014-07-18 RU RU2016105741A patent/RU2678161C2/ru active
- 2014-07-18 CN CN202010573675.0A patent/CN111862997A/zh active Pending
- 2014-07-18 JP JP2016528469A patent/JP6279077B2/ja active Active
- 2014-07-18 EP EP14748143.6A patent/EP3025336B1/en active Active
- 2014-07-18 SG SG11201600393VA patent/SG11201600393VA/en unknown
- 2014-07-18 MX MX2016000909A patent/MX359163B/es active IP Right Grant
- 2014-07-18 AU AU2014295167A patent/AU2014295167B2/en active Active
- 2014-07-18 PT PT14748143T patent/PT3025336T/pt unknown
- 2014-07-18 CN CN201480041810.XA patent/CN105518775B/zh active Active
- 2014-07-18 BR BR112016001003-5A patent/BR112016001003B1/pt active IP Right Grant
- 2014-07-18 KR KR1020167004624A patent/KR101835239B1/ko active IP Right Grant
- 2014-07-18 ES ES14748143.6T patent/ES2687952T3/es active Active
- 2014-07-21 AR ARP140102704A patent/AR097001A1/es active IP Right Grant
- 2014-07-21 TW TW103124999A patent/TWI560702B/zh active
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2016
- 2016-01-19 US US15/000,508 patent/US10360918B2/en active Active
- 2016-02-18 ZA ZA2016/01112A patent/ZA201601112B/en unknown
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2019
- 2019-06-04 US US16/431,601 patent/US10937435B2/en active Active
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