MX348503B - Aparato y método para generar una señal de ancho de banda ampliado a partir de una señal de audio de ancho de banda limitado. - Google Patents
Aparato y método para generar una señal de ancho de banda ampliado a partir de una señal de audio de ancho de banda limitado.Info
- Publication number
- MX348503B MX348503B MX2015003282A MX2015003282A MX348503B MX 348503 B MX348503 B MX 348503B MX 2015003282 A MX2015003282 A MX 2015003282A MX 2015003282 A MX2015003282 A MX 2015003282A MX 348503 B MX348503 B MX 348503B
- Authority
- MX
- Mexico
- Prior art keywords
- bandwidth
- signal
- audio signal
- bandwidth limited
- generating
- Prior art date
Links
- 230000005236 sound signal Effects 0.000 title abstract 4
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
-
- 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
- G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
- G10L19/025—Detection of transients or attacks for time/frequency resolution switching
-
- 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
- G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
-
- 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
- G10L19/0208—Subband vocoders
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Signal Processing (AREA)
- Computational Linguistics (AREA)
- Quality & Reliability (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Mathematical Physics (AREA)
- Circuit For Audible Band Transducer (AREA)
- Stereophonic System (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
- Amplifiers (AREA)
Abstract
Un aparato (100) para generar una señal de ancho de banda ampliado (135) a partir de una señal de audio de ancho de banda limitado (105), comprendiendo la señal de audio de ancho de banda limitado (105) una pluralidad de bloques temporales consecutivos de ancho de banda limitado (511), teniendo cada bloque temporal de ancho de banda limitado por lo menos un parámetro asociado de replicación de banda espectral que comprende una banda de frecuencias núcleo y comprendiendo la señal de ancho de banda ampliado (135) una pluralidad of bloques temporales consecutivos de ancho de banda ampliado (513), comprende un generador de parches (110), un manipulador de señales (120) y un combinador (130). El generador de parches (110) está configurado para generar una señal parcheada (115) que comprende una banda de frecuencias más elevada que utiliza un bloque temporal de ancho de banda limitado de la señal de audio de ancho de banda limitado (105). El generador de parches (110) está configurado para llevar un algoritmo de parcheo armónico (515) a efectos de obtener la señal parcheada (115). El generador de parches (110) está configurado para llevar a cabo el algoritmo de parcheo armónico (515) para un bloque temporal vigente de ancho de banda ampliado (m') de la pluralidad de bloques temporales consecutivos de ancho de banda (513) ampliado que utiliza un bloque temporal de ancho de banda limitado, precedente en el tiempo, (m - 1) de la pluralidad of bloques temporal consecutivos de ancho de banda limitado (511) de la señal de audio de ancho de banda limitado (105). Elmanipulador de señales (120) está configurado para manipular una señal (105) antes del parcheo o la señal parcheada (115) generada mediante el uso del bloque temporal de ancho de banda limitado, precedente en el tiempo, (m - 1) que utiliza un parámetro de replicación de banda espectral (121) asociado con bloque temporal vigente de ancho de banda limitado (m) a efectos de obtener una señal parcheada manipulada (125) que comprende la banda de frecuencia más elevada. El bloque temporal de ancho de banda limitado, precedente en el tiempo, (m - 1), precede en el tiempo al bloque temporal vigente de ancho de banda limitado (m) en la pluralidad of bloques temporales consecutivos de ancho de banda limitado (511) de la señal de audio de ancho de banda limitado (105). El combinador (130) está configurado para combinar la señal de audio de ancho de banda limitado (105) que comprende la banda de frecuencias núcleo y la señal parcheada manipulada (125) que comprende la banda de frecuencia más elevada a efectos de obtener la señal de ancho de banda ampliado (135).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP12184706.5A EP2709106A1 (en) | 2012-09-17 | 2012-09-17 | Apparatus and method for generating a bandwidth extended signal from a bandwidth limited audio signal |
| PCT/EP2013/068808 WO2014041020A1 (en) | 2012-09-17 | 2013-09-11 | Apparatus and method for generating a bandwidth extended signal from a bandwidth limited audio signal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| MX2015003282A MX2015003282A (es) | 2015-07-06 |
| MX348503B true MX348503B (es) | 2017-06-14 |
Family
ID=47002644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MX2015003282A MX348503B (es) | 2012-09-17 | 2013-09-11 | Aparato y método para generar una señal de ancho de banda ampliado a partir de una señal de audio de ancho de banda limitado. |
Country Status (20)
| Country | Link |
|---|---|
| US (2) | US9997162B2 (es) |
| EP (2) | EP2709106A1 (es) |
| JP (1) | JP6130507B2 (es) |
| KR (1) | KR101712477B1 (es) |
| CN (1) | CN104813395B (es) |
| AR (1) | AR092599A1 (es) |
| AU (1) | AU2013314401B2 (es) |
| BR (1) | BR112015005893B1 (es) |
| CA (1) | CA2884420C (es) |
| ES (1) | ES2611347T3 (es) |
| HK (1) | HK1212089A1 (es) |
| MX (1) | MX348503B (es) |
| MY (1) | MY169402A (es) |
| PL (1) | PL2896042T3 (es) |
| PT (1) | PT2896042T (es) |
| RU (1) | RU2611974C2 (es) |
| SG (1) | SG11201502075XA (es) |
| TW (1) | TWI546800B (es) |
| WO (1) | WO2014041020A1 (es) |
| ZA (1) | ZA201502559B (es) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2709106A1 (en) * | 2012-09-17 | 2014-03-19 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for generating a bandwidth extended signal from a bandwidth limited audio signal |
| 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 |
| US10847170B2 (en) * | 2015-06-18 | 2020-11-24 | Qualcomm Incorporated | Device and method for generating a high-band signal from non-linearly processed sub-ranges |
| JP6611042B2 (ja) * | 2015-12-02 | 2019-11-27 | パナソニックＩｐマネジメント株式会社 | 音声信号復号装置及び音声信号復号方法 |
| EP3382704A1 (en) | 2017-03-31 | 2018-10-03 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for determining a predetermined characteristic related to a spectral enhancement processing of an audio signal |
| TWI809289B (zh) | 2018-01-26 | 2023-07-21 | 瑞典商都比國際公司 | 用於執行一音訊信號之高頻重建之方法、音訊處理單元及非暫時性電腦可讀媒體 |
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| US5455888A (en) | 1992-12-04 | 1995-10-03 | Northern Telecom Limited | Speech bandwidth extension method and apparatus |
| US5796842A (en) * | 1996-06-07 | 1998-08-18 | That Corporation | BTSC encoder |
| US5940429A (en) * | 1997-02-25 | 1999-08-17 | Solana Technology Development Corporation | Cross-term compensation power adjustment of embedded auxiliary data in a primary data signal |
| SE512719C2 (sv) | 1997-06-10 | 2000-05-02 | Lars Gustaf Liljeryd | En metod och anordning för reduktion av dataflöde baserad på harmonisk bandbreddsexpansion |
| US6549884B1 (en) | 1999-09-21 | 2003-04-15 | Creative Technology Ltd. | Phase-vocoder pitch-shifting |
| ATE319162T1 (de) * | 2001-01-19 | 2006-03-15 | Koninkl Philips Electronics Nv | Breitband-signalübertragungssystem |
| US6895375B2 (en) | 2001-10-04 | 2005-05-17 | At&T Corp. | System for bandwidth extension of Narrow-band speech |
| KR100501930B1 (ko) * | 2002-11-29 | 2005-07-18 | 삼성전자주식회사 | 적은 계산량으로 고주파수 성분을 복원하는 오디오 디코딩방법 및 장치 |
| ES2791001T3 (es) * | 2004-11-02 | 2020-10-30 | Koninklijke Philips Nv | Codificación y decodificación de señales de audio mediante el uso de bancos de filtros de valor complejo |
| ES2619277T3 (es) * | 2007-08-27 | 2017-06-26 | Telefonaktiebolaget Lm Ericsson (Publ) | Detector de transitorio y método para soportar la codificación de una señal de audio |
| KR100970446B1 (ko) * | 2007-11-21 | 2010-07-16 | 한국전자통신연구원 | 주파수 확장을 위한 가변 잡음레벨 결정 장치 및 그 방법 |
| DE102008015702B4 (de) * | 2008-01-31 | 2010-03-11 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtung und Verfahren zur Bandbreitenerweiterung eines Audiosignals |
| EP2250641B1 (en) * | 2008-03-04 | 2011-10-12 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus for mixing a plurality of input data streams |
| CN102150201B (zh) * | 2008-07-11 | 2013-04-17 | 弗劳恩霍夫应用研究促进协会 | 提供时间扭曲激活信号以及使用该时间扭曲激活信号对音频信号编码 |
| CN102089817B (zh) * | 2008-07-11 | 2013-01-09 | 弗劳恩霍夫应用研究促进协会 | 用于计算频谱包络数目的装置与方法 |
| CA2699316C (en) * | 2008-07-11 | 2014-03-18 | Max Neuendorf | Apparatus and method for calculating bandwidth extension data using a spectral tilt controlled framing |
| CA2729474C (en) * | 2008-07-11 | 2015-09-01 | Frederik Nagel | Apparatus and method for generating a bandwidth extended signal |
| CA2989886C (en) * | 2008-12-15 | 2020-05-05 | Frederik Nagel | Audio encoder and bandwidth extension decoder |
| EP2234103B1 (en) * | 2009-03-26 | 2011-09-28 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Device and method for manipulating an audio signal |
| EP2239732A1 (en) * | 2009-04-09 | 2010-10-13 | Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. | Apparatus and method for generating a synthesis audio signal and for encoding an audio signal |
| EP2273493B1 (en) * | 2009-06-29 | 2012-12-19 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Bandwidth extension encoding and decoding |
| US8498874B2 (en) * | 2009-09-11 | 2013-07-30 | Sling Media Pvt Ltd | Audio signal encoding employing interchannel and temporal redundancy reduction |
| RU2547220C2 (ru) * | 2009-10-21 | 2015-04-10 | Фраунхофер-Гезелльшафт цур Фёрдерунг дер ангевандтен Форшунг Е.Ф. | Устройство и способ для генерирования высокочастотного аудиосигнала с применением адаптивной избыточной дискретизации |
| US8898057B2 (en) | 2009-10-23 | 2014-11-25 | Panasonic Intellectual Property Corporation Of America | Encoding apparatus, decoding apparatus and methods thereof |
| JP5854520B2 (ja) * | 2010-03-09 | 2016-02-09 | フラウンホーファーゲゼルシャフトツール フォルデルング デル アンゲヴァンテン フォルシユング エー．フアー． | オーディオ信号用の位相ボコーダに基づく帯域幅拡張方法における改善された振幅応答及び時間的整列のための装置及び方法 |
| BR122021014305B1 (pt) * | 2010-03-09 | 2022-07-05 | Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. | Aparelho e método para processar um sinal de áudio utilizando alinhamento de borda de patch |
| SG178320A1 (en) * | 2010-06-09 | 2012-03-29 | Panasonic Corp | Bandwidth extension method, bandwidth extension apparatus, program, integrated circuit and audio decoding apparatus |
| EP2709106A1 (en) * | 2012-09-17 | 2014-03-19 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for generating a bandwidth extended signal from a bandwidth limited audio signal |
-
2012
- 2012-09-17 EP EP12184706.5A patent/EP2709106A1/en not_active Withdrawn
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2013
- 2013-09-11 WO PCT/EP2013/068808 patent/WO2014041020A1/en active Application Filing
- 2013-09-11 BR BR112015005893-0A patent/BR112015005893B1/pt active IP Right Grant
- 2013-09-11 PT PT137595393T patent/PT2896042T/pt unknown
- 2013-09-11 AU AU2013314401A patent/AU2013314401B2/en active Active
- 2013-09-11 SG SG11201502075XA patent/SG11201502075XA/en unknown
- 2013-09-11 MX MX2015003282A patent/MX348503B/es active IP Right Grant
- 2013-09-11 EP EP13759539.3A patent/EP2896042B1/en active Active
- 2013-09-11 ES ES13759539.3T patent/ES2611347T3/es active Active
- 2013-09-11 RU RU2015113983A patent/RU2611974C2/ru active
- 2013-09-11 JP JP2015531548A patent/JP6130507B2/ja active Active
- 2013-09-11 CN CN201380058323.XA patent/CN104813395B/zh active Active
- 2013-09-11 PL PL13759539T patent/PL2896042T3/pl unknown
- 2013-09-11 MY MYPI2015000654A patent/MY169402A/en unknown
- 2013-09-11 KR KR1020157009438A patent/KR101712477B1/ko active IP Right Grant
- 2013-09-11 CA CA2884420A patent/CA2884420C/en active Active
- 2013-09-17 AR ARP130103330A patent/AR092599A1/es active IP Right Grant
- 2013-09-17 TW TW102133676A patent/TWI546800B/zh active
-
2015
- 2015-03-17 US US14/659,911 patent/US9997162B2/en active Active
- 2015-04-16 ZA ZA2015/02559A patent/ZA201502559B/en unknown
- 2015-12-28 HK HK15112734.9A patent/HK1212089A1/zh unknown
-
2018
- 2018-05-14 US US15/978,342 patent/US10580415B2/en active Active
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