BR112015018981A2 - descorrelação de sinal em um sistema de processamento de áudio - Google Patents
descorrelação de sinal em um sistema de processamento de áudioInfo
- Publication number
- BR112015018981A2 BR112015018981A2 BR112015018981A BR112015018981A BR112015018981A2 BR 112015018981 A2 BR112015018981 A2 BR 112015018981A2 BR 112015018981 A BR112015018981 A BR 112015018981A BR 112015018981 A BR112015018981 A BR 112015018981A BR 112015018981 A2 BR112015018981 A2 BR 112015018981A2
- Authority
- BR
- Brazil
- Prior art keywords
- audio data
- processing system
- decorrelation
- audio
- involve
- Prior art date
Links
- 238000000034 method Methods 0.000 abstract 5
- 230000003044 adaptive effect Effects 0.000 abstract 1
- 238000003672 processing method 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
- G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
-
- 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
- G10L19/06—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
- 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
- G10L25/06—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 correlation coefficients
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Computational Linguistics (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Health & Medical Sciences (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Mathematical Physics (AREA)
- Stereophonic System (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Telephonic Communication Services (AREA)
Abstract
resumo patente de invenção: "descorrelação de sinal em um sistema de processamento de áudio". a presente invenção refere-se a métodos de processamento de áudio que podem envolver receber dados de áudio correspondentes a uma pluralidade de canais de áudio. os dados de áudio podem incluir uma representação de domínio de frequência correspondente a coeficientes de banco de filtros de um sistema de codificação ou de processamento de áudio. um processo de descorrelação pode ser realizado com os mesmos coeficientes de banco de filtros usados pelo sistema de codificação ou de processamento de áudio. o processo de descorrelação pode ser realizado sem converter coeficientes da representação de domínio de frequência em outra representação de domínio de frequência ou de domínio de tempo. o processo de descorrelação pode envolver descorrelação seletiva ou adaptável por sinal de canais específicos e/ou de bandas de frequências específicas. o processo de descorrelação pode envolver aplicar um filtro de descorrelação a uma porção dos dados de áudio recebidos a fim de produzir dados de áudio filtrados. o processo de descorrelação pode envolver usar um mixer não hierárquico para combinar uma porção direta dos dados de áudio recebidos com os dados de áudio filtrados de acordo com parâmetros espaciais.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201361764837P | 2013-02-14 | 2013-02-14 | |
US61/764,837 | 2013-02-14 | ||
PCT/US2014/012453 WO2014126682A1 (en) | 2013-02-14 | 2014-01-22 | Signal decorrelation in an audio processing system |
Publications (2)
Publication Number | Publication Date |
---|---|
BR112015018981A2 true BR112015018981A2 (pt) | 2017-07-18 |
BR112015018981B1 BR112015018981B1 (pt) | 2022-02-01 |
Family
ID=50064800
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR112015018981-4A BR112015018981B1 (pt) | 2013-02-14 | 2014-01-22 | Método, aparelho e mídia não transitória para descorrelação de sinal em um sistema de processamento de áudio |
Country Status (12)
Country | Link |
---|---|
US (1) | US9830916B2 (pt) |
EP (1) | EP2956933B1 (pt) |
JP (1) | JP6038355B2 (pt) |
KR (1) | KR102114648B1 (pt) |
CN (1) | CN104995676B (pt) |
BR (1) | BR112015018981B1 (pt) |
ES (1) | ES2613478T3 (pt) |
HK (1) | HK1213686A1 (pt) |
IN (1) | IN2015MN01954A (pt) |
RU (1) | RU2614381C2 (pt) |
TW (1) | TWI618050B (pt) |
WO (1) | WO2014126682A1 (pt) |
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US9830917B2 (en) | 2013-02-14 | 2017-11-28 | Dolby Laboratories Licensing Corporation | Methods for audio signal transient detection and decorrelation control |
CN104981867B (zh) | 2013-02-14 | 2018-03-30 | 杜比实验室特许公司 | 用于控制上混音频信号的通道间相干性的方法 |
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EP3067887A1 (en) * | 2015-03-09 | 2016-09-14 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio encoder for encoding a multichannel signal and audio decoder for decoding an encoded audio signal |
EP3179744B1 (en) * | 2015-12-08 | 2018-01-31 | Axis AB | Method, device and system for controlling a sound image in an audio zone |
CN105702263B (zh) * | 2016-01-06 | 2019-08-30 | 清华大学 | 语音重放检测方法和装置 |
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WO2018096036A1 (en) * | 2016-11-23 | 2018-05-31 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for adaptive control of decorrelation filters |
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EP3573058B1 (en) * | 2018-05-23 | 2021-02-24 | Harman Becker Automotive Systems GmbH | Dry sound and ambient sound separation |
CN111107024B (zh) * | 2018-10-25 | 2022-01-28 | 航天科工惯性技术有限公司 | 时间与频率混合编码的防错解码方法 |
CN109557509B (zh) * | 2018-11-23 | 2020-08-11 | 安徽四创电子股份有限公司 | 一种用于改善脉间干扰的双脉冲信号合成器 |
CN109672946B (zh) * | 2019-02-15 | 2023-12-15 | 深圳市昊一源科技有限公司 | 一种无线通话系统、转发设备、终端设备及转发方法 |
CN110267064B (zh) * | 2019-06-12 | 2021-11-12 | 百度在线网络技术(北京)有限公司 | 音频播放状态处理方法、装置、设备及存储介质 |
CN110740404B (zh) * | 2019-09-27 | 2020-12-25 | 广州励丰文化科技股份有限公司 | 一种音频相关性的处理方法及音频处理装置 |
CN110740416B (zh) * | 2019-09-27 | 2021-04-06 | 广州励丰文化科技股份有限公司 | 一种音频信号处理方法及装置 |
WO2023097686A1 (zh) * | 2021-12-03 | 2023-06-08 | 北京小米移动软件有限公司 | 一种立体声音频信号处理方法及设备/存储介质/装置 |
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-
2014
- 2014-01-15 TW TW103101428A patent/TWI618050B/zh active
- 2014-01-22 KR KR1020157021921A patent/KR102114648B1/ko active IP Right Grant
- 2014-01-22 IN IN1954MUN2015 patent/IN2015MN01954A/en unknown
- 2014-01-22 WO PCT/US2014/012453 patent/WO2014126682A1/en active Application Filing
- 2014-01-22 US US14/766,371 patent/US9830916B2/en active Active
- 2014-01-22 CN CN201480008604.9A patent/CN104995676B/zh active Active
- 2014-01-22 EP EP14703015.9A patent/EP2956933B1/en active Active
- 2014-01-22 ES ES14703015.9T patent/ES2613478T3/es active Active
- 2014-01-22 JP JP2015556956A patent/JP6038355B2/ja active Active
- 2014-01-22 BR BR112015018981-4A patent/BR112015018981B1/pt active IP Right Grant
- 2014-01-22 RU RU2015133287A patent/RU2614381C2/ru active
-
2016
- 2016-02-05 HK HK16101417.5A patent/HK1213686A1/zh unknown
Also Published As
Publication number | Publication date |
---|---|
KR102114648B1 (ko) | 2020-05-26 |
CN104995676A (zh) | 2015-10-21 |
HK1213686A1 (zh) | 2016-07-08 |
TW201443877A (zh) | 2014-11-16 |
RU2015133287A (ru) | 2017-02-21 |
CN104995676B (zh) | 2018-03-30 |
US20150380000A1 (en) | 2015-12-31 |
JP6038355B2 (ja) | 2016-12-07 |
EP2956933B1 (en) | 2016-11-16 |
BR112015018981B1 (pt) | 2022-02-01 |
ES2613478T3 (es) | 2017-05-24 |
JP2016510433A (ja) | 2016-04-07 |
IN2015MN01954A (pt) | 2015-08-28 |
KR20150106949A (ko) | 2015-09-22 |
EP2956933A1 (en) | 2015-12-23 |
TWI618050B (zh) | 2018-03-11 |
RU2614381C2 (ru) | 2017-03-24 |
US9830916B2 (en) | 2017-11-28 |
WO2014126682A1 (en) | 2014-08-21 |
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