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
-
- 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
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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
- G10L19/0018—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)
- Human Computer Interaction (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (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) |
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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 |
RU2631139C2 (ru) | 2013-01-21 | 2017-09-19 | Долби Лэборетериз Лайсенсинг Корпорейшн | Оптимизация громкости и динамического диапазона через различные устройства воспроизведения |
RU2719690C2 (ru) | 2013-01-21 | 2020-04-21 | Долби Лабораторис Лайсэнзин Корпорейшн | Аудиокодер и аудиодекодер с метаданными громкости и границы программы |
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CN118016076A (zh) | 2013-09-12 | 2024-05-10 | 杜比实验室特许公司 | 用于下混合音频内容的响度调整 |
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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 |
CN112185402B (zh) | 2014-10-10 | 2024-06-04 | 杜比实验室特许公司 | 基于发送无关的表示的节目响度 |
EP3258467B1 (en) * | 2015-02-10 | 2019-09-18 | Sony Corporation | Transmission and reception of audio streams |
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*** |
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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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EP3483886A1 (en) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Selecting pitch lag |
EP3483882A1 (en) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Controlling bandwidth in encoders and/or decoders |
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KR102185941B1 (ko) * | 2011-07-01 | 2020-12-03 | 돌비 레버러토리즈 라이쎈싱 코오포레이션 | 적응형 오디오 신호 생성, 코딩 및 렌더링을 위한 시스템 및 방법 |
CA2858925C (en) * | 2011-12-15 | 2017-02-21 | Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. | Apparatus, method and computer program for avoiding clipping artefacts |
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
-
2014
- 2014-01-07 EP EP14702195.0A patent/EP2946384B1/en active Active
- 2014-01-07 WO PCT/EP2014/050171 patent/WO2014111290A1/en active Application Filing
- 2014-01-07 JP JP2015553045A patent/JP6184519B2/ja active Active
- 2014-01-07 KR KR1020177024874A patent/KR101953648B1/ko active IP Right Grant
- 2014-01-07 BR BR112015017293-8A patent/BR112015017293B1/pt active IP Right Grant
- 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 RU RU2015134587A patent/RU2608878C1/ru active
- 2014-01-07 MX MX2015009171A patent/MX346358B/es active IP Right Grant
- 2014-01-07 KR KR1020157021762A patent/KR20150106929A/ko active Application Filing
- 2014-01-07 CA CA2898005A patent/CA2898005C/en active Active
-
2015
- 2015-07-09 US US14/795,063 patent/US9830915B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
CA2898005C (en) | 2018-08-14 |
KR20150106929A (ko) | 2015-09-22 |
BR112015017293B1 (pt) | 2021-12-21 |
CN105210149A (zh) | 2015-12-30 |
EP2946384B1 (en) | 2016-11-02 |
ES2604983T3 (es) | 2017-03-10 |
KR20170104661A (ko) | 2017-09-15 |
EP2946384A1 (en) | 2015-11-25 |
KR101953648B1 (ko) | 2019-05-23 |
RU2608878C1 (ru) | 2017-01-25 |
WO2014111290A1 (en) | 2014-07-24 |
JP6184519B2 (ja) | 2017-08-23 |
JP2016505168A (ja) | 2016-02-18 |
CA2898005A1 (en) | 2014-07-24 |
CN105210149B (zh) | 2019-08-30 |
MX346358B (es) | 2017-03-15 |
US20160019898A1 (en) | 2016-01-21 |
BR112015017293A2 (pt) | 2018-05-15 |
US9830915B2 (en) | 2017-11-28 |
EP2757558A1 (en) | 2014-07-23 |
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