AR088007A1 - Metodo y sistema para codificar datos de audio con compensacion adaptativa de baja frecuencia - Google Patents
Metodo y sistema para codificar datos de audio con compensacion adaptativa de baja frecuenciaInfo
- Publication number
- AR088007A1 AR088007A1 ARP120103522A ARP120103522A AR088007A1 AR 088007 A1 AR088007 A1 AR 088007A1 AR P120103522 A ARP120103522 A AR P120103522A AR P120103522 A ARP120103522 A AR P120103522A AR 088007 A1 AR088007 A1 AR 088007A1
- Authority
- AR
- Argentina
- Prior art keywords
- low frequency
- audio data
- frequency band
- compensation
- group
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 5
- 230000003044 adaptive effect Effects 0.000 title abstract 3
- 238000001514 detection method Methods 0.000 abstract 2
- 230000000873 masking effect Effects 0.000 abstract 2
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 238000011002 quantification Methods 0.000 abstract 1
Classifications
-
- 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
- G10L19/028—Noise substitution, i.e. substituting non-tonal spectral components by noisy source
-
- 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
- G10L19/032—Quantisation or dequantisation of spectral components
-
- 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
- G10L19/265—Pre-filtering, e.g. high frequency emphasis prior to encoding
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Computational Linguistics (AREA)
- Human Computer Interaction (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
Un método para determinar la asignación de bits a mantisa de los valores de datos de audio de los datos de audio del dominio de frecuencia a ser codificados (que incluye cuantificación). El método de asignación incluye un paso de determinar los valores de enmascaramiento para los valores de datos de audio, que incluye la realización de compensación de baja frecuencia adaptativa en los datos de audio de cada banda de frecuencia de un grupo de bandas de baja frecuencia de los datos de audio. La compensación de baja frecuencia adaptativa incluye los pasos de: realzar detección de tonalidad en los datos de audio para generar datos de control de compensación indicativos de si cada banda de frecuencia en el grupo de bandas de baja frecuencia tiene contenido tonal prominente; y realizar compensación de baja frecuencia en los datos de audio en cada banda de frecuencia en el grupo de bandas de baja frecuencia que tengan contenido tonal prominente como lo indican los datos de control de compensación, que incluye la corrección del valor de enmascaramiento preliminar para dicha cada banda de frecuencia que tiene contenido tonal prominente, pero no realizar la compensación de baja frecuencia en los datos de audio en cualquier otra banda de frecuencia en el grupo de bandas de baja frecuencia. Otro aspecto es un método de codificación de audio que incluye dichos pasos de detección de tonalidad y de compensación de baja frecuencia. Otro aspecto es un sistema (p. ej., un sistema informático o procesador) configurado (p. ej., programado) para realizar cualquier realización del método de la presente.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201261584478P | 2012-01-09 | 2012-01-09 | |
| US13/588,890 US8527264B2 (en) | 2012-01-09 | 2012-08-17 | Method and system for encoding audio data with adaptive low frequency compensation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AR088007A1 true AR088007A1 (es) | 2014-04-30 |
Family
ID=48744528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ARP120103522A AR088007A1 (es) | 2012-01-09 | 2012-09-25 | Metodo y sistema para codificar datos de audio con compensacion adaptativa de baja frecuencia |
Country Status (19)
| Country | Link |
|---|---|
| US (2) | US8527264B2 (es) |
| EP (1) | EP2803067B1 (es) |
| JP (2) | JP5755379B2 (es) |
| KR (1) | KR101621704B1 (es) |
| AR (1) | AR088007A1 (es) |
| AU (1) | AU2012364749B2 (es) |
| BR (1) | BR112014016847B1 (es) |
| CA (1) | CA2858663C (es) |
| CL (1) | CL2014001805A1 (es) |
| HK (1) | HK1201976A1 (es) |
| IL (1) | IL233029A0 (es) |
| IN (1) | IN2014CN04457A (es) |
| MX (1) | MX335999B (es) |
| MY (1) | MY187728A (es) |
| RU (1) | RU2583717C1 (es) |
| SG (1) | SG11201402983UA (es) |
| TW (1) | TWI470621B (es) |
| UA (1) | UA110291C2 (es) |
| WO (1) | WO2013106098A1 (es) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2261896B1 (en) * | 2008-07-29 | 2017-12-06 | Yamaha Corporation | Performance-related information output device, system provided with performance-related information output device, and electronic musical instrument |
| WO2010013754A1 (ja) * | 2008-07-30 | 2010-02-04 | ヤマハ株式会社 | オーディオ信号処理装置、オーディオ信号処理システム、およびオーディオ信号処理方法 |
| JP5782677B2 (ja) | 2010-03-31 | 2015-09-24 | ヤマハ株式会社 | コンテンツ再生装置および音声処理システム |
| EP2573761B1 (en) | 2011-09-25 | 2018-02-14 | Yamaha Corporation | Displaying content in relation to music reproduction by means of information processing apparatus independent of music reproduction apparatus |
| JP5494677B2 (ja) | 2012-01-06 | 2014-05-21 | ヤマハ株式会社 | 演奏装置及び演奏プログラム |
| US9754596B2 (en) | 2013-02-14 | 2017-09-05 | Dolby Laboratories Licensing Corporation | Methods for controlling the inter-channel coherence of upmixed audio signals |
| US9830917B2 (en) | 2013-02-14 | 2017-11-28 | Dolby Laboratories Licensing Corporation | Methods for audio signal transient detection and decorrelation control |
| TWI618050B (zh) | 2013-02-14 | 2018-03-11 | 杜比實驗室特許公司 | 用於音訊處理系統中之訊號去相關的方法及設備 |
| TWI618051B (zh) | 2013-02-14 | 2018-03-11 | 杜比實驗室特許公司 | 用於利用估計之空間參數的音頻訊號增強的音頻訊號處理方法及裝置 |
| EP2980792A1 (en) | 2014-07-28 | 2016-02-03 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for generating an enhanced signal using independent noise-filling |
| JP6492915B2 (ja) * | 2015-04-15 | 2019-04-03 | 富士通株式会社 | 符号化装置、符号化方法、及びプログラム |
| EP3288031A1 (en) | 2016-08-23 | 2018-02-28 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for encoding an audio signal using a compensation value |
| US11232804B2 (en) * | 2017-07-03 | 2022-01-25 | Dolby International Ab | Low complexity dense transient events detection and coding |
| CN108616277B (zh) * | 2018-05-22 | 2021-07-13 | 电子科技大学 | 一种多通道频域补偿的快速校正方法 |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4817155A (en) * | 1983-05-05 | 1989-03-28 | Briar Herman P | Method and apparatus for speech analysis |
| US5632005A (en) | 1991-01-08 | 1997-05-20 | Ray Milton Dolby | Encoder/decoder for multidimensional sound fields |
| AU653582B2 (en) | 1991-01-08 | 1994-10-06 | Dolby Laboratories Licensing Corporation | Encoder/decoder for multidimensional sound fields |
| US5581653A (en) * | 1993-08-31 | 1996-12-03 | Dolby Laboratories Licensing Corporation | Low bit-rate high-resolution spectral envelope coding for audio encoder and decoder |
| US5727119A (en) | 1995-03-27 | 1998-03-10 | Dolby Laboratories Licensing Corporation | Method and apparatus for efficient implementation of single-sideband filter banks providing accurate measures of spectral magnitude and phase |
| JPH10261964A (ja) * | 1997-03-19 | 1998-09-29 | Sanyo Electric Co Ltd | 情報信号処理装置 |
| CA2230188A1 (en) * | 1998-03-27 | 1999-09-27 | William C. Treurniet | Objective audio quality measurement |
| EP1228569A1 (en) * | 1999-10-30 | 2002-08-07 | STMicroelectronics Asia Pacific Pte Ltd. | A method of encoding frequency coefficients in an ac-3 encoder |
| CA2418722C (en) * | 2000-08-16 | 2012-02-07 | Dolby Laboratories Licensing Corporation | Modulating one or more parameters of an audio or video perceptual coding system in response to supplemental information |
| AU2211102A (en) * | 2000-11-30 | 2002-06-11 | Scient Generics Ltd | Acoustic communication system |
| US7747655B2 (en) * | 2001-11-19 | 2010-06-29 | Ricoh Co. Ltd. | Printable representations for time-based media |
| US7110941B2 (en) * | 2002-03-28 | 2006-09-19 | Microsoft Corporation | System and method for embedded audio coding with implicit auditory masking |
| US7509257B2 (en) * | 2002-12-24 | 2009-03-24 | Marvell International Ltd. | Method and apparatus for adapting reference templates |
| US7333930B2 (en) * | 2003-03-14 | 2008-02-19 | Agere Systems Inc. | Tonal analysis for perceptual audio coding using a compressed spectral representation |
| US7516064B2 (en) | 2004-02-19 | 2009-04-07 | Dolby Laboratories Licensing Corporation | Adaptive hybrid transform for signal analysis and synthesis |
| JP2006018023A (ja) * | 2004-07-01 | 2006-01-19 | Fujitsu Ltd | オーディオ信号符号化装置、および符号化プログラム |
| CA2690433C (en) * | 2007-06-22 | 2016-01-19 | Voiceage Corporation | Method and device for sound activity detection and sound signal classification |
| EP2193348A1 (en) | 2007-09-28 | 2010-06-09 | Voiceage Corporation | Method and device for efficient quantization of transform information in an embedded speech and audio codec |
| KR20090122142A (ko) | 2008-05-23 | 2009-11-26 | 엘지전자 주식회사 | 오디오 신호 처리 방법 및 장치 |
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2012
- 2012-08-17 US US13/588,890 patent/US8527264B2/en active Active
- 2012-09-25 JP JP2014551236A patent/JP5755379B2/ja active Active
- 2012-09-25 MY MYPI2014001783A patent/MY187728A/en unknown
- 2012-09-25 KR KR1020147018354A patent/KR101621704B1/ko active IP Right Grant
- 2012-09-25 AR ARP120103522A patent/AR088007A1/es active IP Right Grant
- 2012-09-25 MX MX2014007400A patent/MX335999B/es unknown
- 2012-09-25 AU AU2012364749A patent/AU2012364749B2/en active Active
- 2012-09-25 SG SG11201402983UA patent/SG11201402983UA/en unknown
- 2012-09-25 EP EP12784365.4A patent/EP2803067B1/en active Active
- 2012-09-25 BR BR112014016847-4A patent/BR112014016847B1/pt active IP Right Grant
- 2012-09-25 RU RU2014127740/08A patent/RU2583717C1/ru active
- 2012-09-25 CA CA2858663A patent/CA2858663C/en active Active
- 2012-09-25 IN IN4457CHN2014 patent/IN2014CN04457A/en unknown
- 2012-09-25 UA UAA201407672A patent/UA110291C2/ru unknown
- 2012-09-25 TW TW101135106A patent/TWI470621B/zh active
- 2012-09-25 WO PCT/US2012/057132 patent/WO2013106098A1/en active Application Filing
-
2014
- 2014-06-09 IL IL233029A patent/IL233029A0/en active IP Right Grant
- 2014-07-07 CL CL2014001805A patent/CL2014001805A1/es unknown
- 2014-07-07 US US14/325,130 patent/US9275649B2/en active Active
-
2015
- 2015-03-06 HK HK15102312.0A patent/HK1201976A1/xx unknown
- 2015-05-26 JP JP2015106044A patent/JP6093801B2/ja active Active
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| FG | Grant, registration |