MX2015009171A - Ajuste de nivel en el dominio del tiempo para descodificacion o codificacion de señales de audio. - Google Patents
Ajuste de nivel en el dominio del tiempo para descodificacion o codificacion de señales de audio.Info
- Publication number
- MX2015009171A MX2015009171A MX2015009171A MX2015009171A MX2015009171A MX 2015009171 A MX2015009171 A MX 2015009171A MX 2015009171 A MX2015009171 A MX 2015009171A MX 2015009171 A MX2015009171 A MX 2015009171A MX 2015009171 A MX2015009171 A MX 2015009171A
- Authority
- MX
- Mexico
- Prior art keywords
- audio signal
- time
- level shift
- representation
- frequency band
- Prior art date
Links
- 230000005236 sound signal Effects 0.000 title abstract 6
- 238000007781 pre-processing 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
- G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
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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
-
- 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
- G10L19/0017—Lossless audio signal coding; Perfect reconstruction of coded audio signal by transmission of coding error
-
- 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
- G10L19/0018—Speech coding using phonetic or linguistical decoding of the source; Reconstruction using text-to-speech synthesis
-
- 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
- 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
- G10L21/0208—Noise filtering
- G10L21/0216—Noise filtering characterised by the method used for estimating noise
- G10L21/0224—Processing in the time domain
-
- 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
- G10L21/0208—Noise filtering
- G10L21/0216—Noise filtering characterised by the method used for estimating noise
- G10L21/0232—Processing in the frequency domain
-
- 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
- G10L21/0316—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude
- G10L21/0324—Details of processing therefor
- G10L21/0332—Details of processing therefor involving modification of waveforms
-
- 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
- G10L21/0316—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude
- G10L21/0324—Details of processing therefor
- G10L21/034—Automatic adjustment
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Signal Processing (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Computational Linguistics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Quality & Reliability (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
Abstract
Un descodificador de señales de audio (100) para proporcionar una representación de señal de audio descodificada con base en una representación de señal de audio codificada comprende una etapa de pre-procesamiento de descodificador (110) para obtener una pluralidad de señales de banda de frecuencia de la representación de la señal de audio codificada, un estimador de recorte (120), un cambiador de nivel (130), un convertidor del dominio de la frecuencia al dominio del tiempo (140), y un compensador de cambio de nivel (150). El estimador de recorte (120) analiza la representación de señal de audio codificada y/o la información adicional con respecto a una ganancia de las señales de banda de frecuencia a fin de determinar un factor de cambio de nivel actual. El cambiador de nivel (130) cambia los niveles de las señales de banda de frecuencia de acuerdo al factor de cambio de nivel. El convertidor del dominio de la frecuencia al dominio del tiempo (140) convierte las señales de banda de frecuencia cambiadas de nivel a una representación en el dominio del tiempo. El compensador de cambio de nivel (150) actúa sobre la representación en el dominio del tiempo para compensar al menos parcialmente un cambio de nivel correspondiente y para obtener una representación en el dominio del tiempo sustancialmente compensada.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13151910.0A EP2757558A1 (en) | 2013-01-18 | 2013-01-18 | Time domain level adjustment for audio signal decoding or encoding |
PCT/EP2014/050171 WO2014111290A1 (en) | 2013-01-18 | 2014-01-07 | Time domain level adjustment for audio signal decoding or encoding |
Publications (2)
Publication Number | Publication Date |
---|---|
MX2015009171A true MX2015009171A (es) | 2015-11-09 |
MX346358B MX346358B (es) | 2017-03-15 |
Family
ID=47603376
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX2015009171A MX346358B (es) | 2013-01-18 | 2014-01-07 | Ajuste de nivel en el dominio del tiempo para descodificacion o codificacion de señales de audio. |
Country Status (11)
Country | Link |
---|---|
US (1) | US9830915B2 (es) |
EP (2) | EP2757558A1 (es) |
JP (1) | JP6184519B2 (es) |
KR (2) | KR101953648B1 (es) |
CN (1) | CN105210149B (es) |
BR (1) | BR112015017293B1 (es) |
CA (1) | CA2898005C (es) |
ES (1) | ES2604983T3 (es) |
MX (1) | MX346358B (es) |
RU (1) | RU2608878C1 (es) |
WO (1) | WO2014111290A1 (es) |
Families Citing this family (38)
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WO2006047600A1 (en) | 2004-10-26 | 2006-05-04 | Dolby Laboratories Licensing Corporation | Calculating and adjusting the perceived loudness and/or the perceived spectral balance of an audio signal |
TWI447709B (zh) | 2010-02-11 | 2014-08-01 | Dolby Lab Licensing Corp | 用以非破壞地正常化可攜式裝置中音訊訊號響度之系統及方法 |
CN103325380B (zh) | 2012-03-23 | 2017-09-12 | 杜比实验室特许公司 | 用于信号增强的增益后处理 |
US10844689B1 (en) | 2019-12-19 | 2020-11-24 | Saudi Arabian Oil Company | Downhole ultrasonic actuator system for mitigating lost circulation |
CN112185400A (zh) | 2012-05-18 | 2021-01-05 | 杜比实验室特许公司 | 用于维持与参数音频编码器相关联的可逆动态范围控制信息的系统 |
EP2757558A1 (en) * | 2013-01-18 | 2014-07-23 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Time domain level adjustment for audio signal decoding or encoding |
EP2901449B1 (en) | 2013-01-21 | 2018-01-03 | Dolby Laboratories Licensing Corporation | Audio encoder and decoder with program loudness and boundary metadata |
BR112015017064B1 (pt) | 2013-01-21 | 2022-03-22 | Dolby Laboratories Licensing Corporation | Método, meio legível em computador e aparelho para otimizar o nível de intensidade do som e a faixa dinâmica através de dispositivos de reprodução diferentes |
CN110379434B (zh) | 2013-02-21 | 2023-07-04 | 杜比国际公司 | 用于参数化多声道编码的方法 |
CN104080024B (zh) | 2013-03-26 | 2019-02-19 | 杜比实验室特许公司 | 音量校平器控制器和控制方法以及音频分类器 |
CN110083714B (zh) | 2013-04-05 | 2024-02-13 | 杜比实验室特许公司 | 用于自动文件检测的对来自基于文件的媒体的特有信息的获取、恢复和匹配 |
TWM487509U (zh) | 2013-06-19 | 2014-10-01 | 杜比實驗室特許公司 | 音訊處理設備及電子裝置 |
CN108364657B (zh) | 2013-07-16 | 2020-10-30 | 超清编解码有限公司 | 处理丢失帧的方法和解码器 |
WO2015038522A1 (en) | 2013-09-12 | 2015-03-19 | Dolby Laboratories Licensing Corporation | Loudness adjustment for downmixed audio content |
EP3044876B1 (en) | 2013-09-12 | 2019-04-10 | Dolby Laboratories Licensing Corporation | Dynamic range control for a wide variety of playback environments |
KR20160090796A (ko) * | 2013-11-27 | 2016-08-01 | 마이크로칩 테크놀로지 인코포레이티드 | 메인 클록의 높은 정밀 발진기 |
CN110808723A (zh) | 2014-05-26 | 2020-02-18 | 杜比实验室特许公司 | 音频信号响度控制 |
CN106683681B (zh) * | 2014-06-25 | 2020-09-25 | 华为技术有限公司 | 处理丢失帧的方法和装置 |
EP4060661B1 (en) | 2014-10-10 | 2024-04-24 | Dolby Laboratories Licensing Corporation | Transmission-agnostic presentation-based program loudness |
WO2016129412A1 (ja) * | 2015-02-10 | 2016-08-18 | ソニー株式会社 | 送信装置、送信方法、受信装置および受信方法 |
CN104795072A (zh) * | 2015-03-25 | 2015-07-22 | 无锡天脉聚源传媒科技有限公司 | 一种音频数据的编码方法及装置 |
CN105662706B (zh) * | 2016-01-07 | 2018-06-05 | 深圳大学 | 增强时域表达的人工耳蜗信号处理方法及系统 |
CN109328382B (zh) * | 2016-06-22 | 2023-06-16 | 杜比国际公司 | 用于将数字音频信号从第一频域变换到第二频域的音频解码器及方法 |
KR102565447B1 (ko) * | 2017-07-26 | 2023-08-08 | 삼성전자주식회사 | 청각 인지 속성에 기반하여 디지털 오디오 신호의 이득을 조정하는 전자 장치 및 방법 |
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EP3483879A1 (en) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Analysis/synthesis windowing function for modulated lapped transformation |
EP3483886A1 (en) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Selecting pitch lag |
WO2019091576A1 (en) | 2017-11-10 | 2019-05-16 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio encoders, audio decoders, methods and computer programs adapting an encoding and decoding of least significant bits |
EP3483882A1 (en) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Controlling bandwidth in encoders and/or decoders |
EP3483884A1 (en) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Signal filtering |
EP3483878A1 (en) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio decoder supporting a set of different loss concealment tools |
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TW202339510A (zh) * | 2011-07-01 | 2023-10-01 | 美商杜比實驗室特許公司 | 用於適應性音頻信號的產生、譯碼與呈現之系統與方法 |
RU2586874C1 (ru) * | 2011-12-15 | 2016-06-10 | Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. | Устройство, способ и компьютерная программа для устранения артефактов амплитудного ограничения |
EP2757558A1 (en) * | 2013-01-18 | 2014-07-23 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Time domain level adjustment for audio signal decoding or encoding |
-
2013
- 2013-01-18 EP EP13151910.0A patent/EP2757558A1/en not_active Withdrawn
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2014
- 2014-01-07 JP JP2015553045A patent/JP6184519B2/ja active Active
- 2014-01-07 CN CN201480016606.2A patent/CN105210149B/zh active Active
- 2014-01-07 ES ES14702195.0T patent/ES2604983T3/es active Active
- 2014-01-07 KR KR1020177024874A patent/KR101953648B1/ko active IP Right Grant
- 2014-01-07 RU RU2015134587A patent/RU2608878C1/ru active
- 2014-01-07 KR KR1020157021762A patent/KR20150106929A/ko active Application Filing
- 2014-01-07 WO PCT/EP2014/050171 patent/WO2014111290A1/en active Application Filing
- 2014-01-07 CA CA2898005A patent/CA2898005C/en active Active
- 2014-01-07 EP EP14702195.0A patent/EP2946384B1/en active Active
- 2014-01-07 MX MX2015009171A patent/MX346358B/es active IP Right Grant
- 2014-01-07 BR BR112015017293-8A patent/BR112015017293B1/pt active IP Right Grant
-
2015
- 2015-07-09 US US14/795,063 patent/US9830915B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
EP2946384A1 (en) | 2015-11-25 |
KR101953648B1 (ko) | 2019-05-23 |
RU2608878C1 (ru) | 2017-01-25 |
US20160019898A1 (en) | 2016-01-21 |
EP2946384B1 (en) | 2016-11-02 |
CA2898005A1 (en) | 2014-07-24 |
CA2898005C (en) | 2018-08-14 |
US9830915B2 (en) | 2017-11-28 |
ES2604983T3 (es) | 2017-03-10 |
EP2757558A1 (en) | 2014-07-23 |
CN105210149A (zh) | 2015-12-30 |
JP6184519B2 (ja) | 2017-08-23 |
KR20150106929A (ko) | 2015-09-22 |
BR112015017293A2 (pt) | 2018-05-15 |
WO2014111290A1 (en) | 2014-07-24 |
MX346358B (es) | 2017-03-15 |
CN105210149B (zh) | 2019-08-30 |
BR112015017293B1 (pt) | 2021-12-21 |
JP2016505168A (ja) | 2016-02-18 |
KR20170104661A (ko) | 2017-09-15 |
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