ES2526333T3 - Frecuencia de transición adaptativa entre el rellenado con ruido y la extensión del ancho de banda - Google Patents
Frecuencia de transición adaptativa entre el rellenado con ruido y la extensión del ancho de banda Download PDFInfo
- Publication number
- ES2526333T3 ES2526333T3 ES12196913.3T ES12196913T ES2526333T3 ES 2526333 T3 ES2526333 T3 ES 2526333T3 ES 12196913 T ES12196913 T ES 12196913T ES 2526333 T3 ES2526333 T3 ES 2526333T3
- Authority
- ES
- Spain
- Prior art keywords
- transition frequency
- frequency
- spectral coefficients
- initial set
- noise
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Processing of the speech or voice signal 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
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
- G10L19/035—Scalar quantisation
Abstract
Método para la recuperación de espectro para la descodificación espectral de una señal de audio, que comprende las etapas de: obtener (210) un conjunto (42) inicial de coeficientes espectrales que representan a la citada señal de audio; dividir los citados coeficientes espectrales del citado conjunto (42) inicial de coeficientes espectrales en una pluralidad de bandas de frecuencia (74); determinar (212) una frecuencia de transición (ft); rellenado con ruido (214) de agujeros espectrales en el citado conjunto (42) inicial de coeficientes espectrales por debajo de la citada frecuencia de transición (ft); y extender el ancho de banda (216) del citado conjunto (42) inicial de coeficientes espectrales por encima de la citada frecuencia de transición (ft); donde la citada frecuencia de transición (ft) es ajustada al límite superior de la primera banda de frecuencia visto desde el lado de la frecuencia alta que tiene en él un coeficiente cuantificado.
Description
Claims (1)
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imagen1 imagen2
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US96813407P | 2007-08-27 | 2007-08-27 | |
US968134P | 2007-08-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2526333T3 true ES2526333T3 (es) | 2015-01-09 |
Family
ID=40387561
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES12196913.3T Active ES2526333T3 (es) | 2007-08-27 | 2008-08-26 | Frecuencia de transición adaptativa entre el rellenado con ruido y la extensión del ancho de banda |
ES08828148T Active ES2403410T3 (es) | 2007-08-27 | 2008-08-26 | Frecuencia de transición adaptativa entre el rellenado con ruido y la extensión del ancho de banda |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES08828148T Active ES2403410T3 (es) | 2007-08-27 | 2008-08-26 | Frecuencia de transición adaptativa entre el rellenado con ruido y la extensión del ancho de banda |
Country Status (12)
Country | Link |
---|---|
US (5) | US9269372B2 (es) |
EP (2) | EP2571024B1 (es) |
JP (2) | JP5183741B2 (es) |
CN (1) | CN101939782B (es) |
BR (1) | BRPI0815972B1 (es) |
DK (1) | DK2571024T3 (es) |
ES (2) | ES2526333T3 (es) |
HK (1) | HK1143239A1 (es) |
MX (1) | MX2010001394A (es) |
PL (1) | PL2186086T3 (es) |
PT (1) | PT2571024E (es) |
WO (1) | WO2009029037A1 (es) |
Families Citing this family (45)
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MX2010001394A (es) | 2007-08-27 | 2010-03-10 | Ericsson Telefon Ab L M | Frecuencia de transicion adaptiva entre llenado de ruido y extension de anchura de banda. |
CN101809657B (zh) * | 2007-08-27 | 2012-05-30 | 爱立信电话股份有限公司 | 用于噪声填充的方法和设备 |
KR20090110244A (ko) * | 2008-04-17 | 2009-10-21 | 삼성전자주식회사 | 오디오 시맨틱 정보를 이용한 오디오 신호의 부호화/복호화 방법 및 그 장치 |
MY178597A (en) | 2008-07-11 | 2020-10-16 | Fraunhofer Ges Forschung | Audio encoder, audio decoder, methods for encoding and decoding an audio signal, and a computer program |
JP4932917B2 (ja) | 2009-04-03 | 2012-05-16 | 株式会社エヌ・ティ・ティ・ドコモ | 音声復号装置、音声復号方法、及び音声復号プログラム |
JP5754899B2 (ja) | 2009-10-07 | 2015-07-29 | ソニー株式会社 | 復号装置および方法、並びにプログラム |
CN102194457B (zh) * | 2010-03-02 | 2013-02-27 | 中兴通讯股份有限公司 | 音频编解码方法、系统及噪声水平估计方法 |
JPWO2011121955A1 (ja) * | 2010-03-30 | 2013-07-04 | パナソニック株式会社 | オーディオ装置 |
JP5609737B2 (ja) | 2010-04-13 | 2014-10-22 | ソニー株式会社 | 信号処理装置および方法、符号化装置および方法、復号装置および方法、並びにプログラム |
JP5850216B2 (ja) | 2010-04-13 | 2016-02-03 | ソニー株式会社 | 信号処理装置および方法、符号化装置および方法、復号装置および方法、並びにプログラム |
JP6075743B2 (ja) * | 2010-08-03 | 2017-02-08 | ソニー株式会社 | 信号処理装置および方法、並びにプログラム |
CN103262409B (zh) * | 2010-09-10 | 2016-07-06 | Dts(英属维尔京群岛)有限公司 | 用于改进的感觉的频谱不平衡的音频信号的动态补偿 |
US9008811B2 (en) | 2010-09-17 | 2015-04-14 | Xiph.org Foundation | Methods and systems for adaptive time-frequency resolution in digital data coding |
JP5707842B2 (ja) | 2010-10-15 | 2015-04-30 | ソニー株式会社 | 符号化装置および方法、復号装置および方法、並びにプログラム |
WO2012053150A1 (ja) * | 2010-10-18 | 2012-04-26 | パナソニック株式会社 | 音声符号化装置および音声復号化装置 |
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US9015042B2 (en) * | 2011-03-07 | 2015-04-21 | Xiph.org Foundation | Methods and systems for avoiding partial collapse in multi-block audio coding |
CN102800317B (zh) * | 2011-05-25 | 2014-09-17 | 华为技术有限公司 | 信号分类方法及设备、编解码方法及设备 |
DE102011106033A1 (de) | 2011-06-30 | 2013-01-03 | Zte Corporation | Verfahren und System zur Audiocodierung und -decodierung und Verfahren zur Schätzung des Rauschpegels |
JP6001657B2 (ja) * | 2011-06-30 | 2016-10-05 | サムスン エレクトロニクス カンパニー リミテッド | 帯域幅拡張信号生成装置及びその方法 |
JP5416173B2 (ja) * | 2011-07-07 | 2014-02-12 | 中興通訊股▲ふん▼有限公司 | 周波数帯コピー方法、装置及びオーディオ復号化方法、システム |
CN102208188B (zh) | 2011-07-13 | 2013-04-17 | 华为技术有限公司 | 音频信号编解码方法和设备 |
CN103368682B (zh) * | 2012-03-29 | 2016-12-07 | 华为技术有限公司 | 信号编码和解码的方法和设备 |
EP2665208A1 (en) | 2012-05-14 | 2013-11-20 | Thomson Licensing | Method and apparatus for compressing and decompressing a Higher Order Ambisonics signal representation |
US9881616B2 (en) * | 2012-06-06 | 2018-01-30 | Qualcomm Incorporated | Method and systems having improved speech recognition |
KR20150056770A (ko) * | 2012-09-13 | 2015-05-27 | 엘지전자 주식회사 | 손실 프레임 복원 방법 및 오디오 복호화 방법과 이를 이용하는 장치 |
CN103778918B (zh) * | 2012-10-26 | 2016-09-07 | 华为技术有限公司 | 音频信号的比特分配的方法和装置 |
CN105976824B (zh) | 2012-12-06 | 2021-06-08 | 华为技术有限公司 | 信号解码的方法和设备 |
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EP3693962A1 (en) * | 2013-01-29 | 2020-08-12 | FRAUNHOFER-GESELLSCHAFT zur Förderung der angewandten Forschung e.V. | Noise filling concept |
CN103971693B (zh) * | 2013-01-29 | 2017-02-22 | 华为技术有限公司 | 高频带信号的预测方法、编/解码设备 |
CN116741186A (zh) | 2013-04-05 | 2023-09-12 | 杜比国际公司 | 立体声音频编码器和解码器 |
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2008
- 2008-08-26 MX MX2010001394A patent/MX2010001394A/es active IP Right Grant
- 2008-08-26 JP JP2010522869A patent/JP5183741B2/ja active Active
- 2008-08-26 WO PCT/SE2008/050969 patent/WO2009029037A1/en active Application Filing
- 2008-08-26 PL PL08828148T patent/PL2186086T3/pl unknown
- 2008-08-26 PT PT121969133T patent/PT2571024E/pt unknown
- 2008-08-26 CN CN200880105330XA patent/CN101939782B/zh active Active
- 2008-08-26 BR BRPI0815972A patent/BRPI0815972B1/pt active IP Right Grant
- 2008-08-26 US US12/674,341 patent/US9269372B2/en not_active Expired - Fee Related
- 2008-08-26 EP EP12196913.3A patent/EP2571024B1/en active Active
- 2008-08-26 ES ES12196913.3T patent/ES2526333T3/es active Active
- 2008-08-26 DK DK12196913.3T patent/DK2571024T3/en active
- 2008-08-26 EP EP08828148A patent/EP2186086B1/en active Active
- 2008-08-26 ES ES08828148T patent/ES2403410T3/es active Active
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2010
- 2010-10-08 HK HK10109588.7A patent/HK1143239A1/xx unknown
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2013
- 2013-01-15 JP JP2013004910A patent/JP5458189B2/ja active Active
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2015
- 2015-12-01 US US14/955,645 patent/US9711154B2/en active Active
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2017
- 2017-06-30 US US15/639,347 patent/US10199049B2/en active Active
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2018
- 2018-12-21 US US16/230,777 patent/US10878829B2/en active Active
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2020
- 2020-12-21 US US17/128,665 patent/US20210110836A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
US9269372B2 (en) | 2016-02-23 |
EP2571024B1 (en) | 2014-10-22 |
US20170301358A1 (en) | 2017-10-19 |
US9711154B2 (en) | 2017-07-18 |
MX2010001394A (es) | 2010-03-10 |
WO2009029037A1 (en) | 2009-03-05 |
US20110264454A1 (en) | 2011-10-27 |
EP2571024A1 (en) | 2013-03-20 |
PL2186086T3 (pl) | 2013-07-31 |
ES2403410T3 (es) | 2013-05-17 |
US10199049B2 (en) | 2019-02-05 |
US20190122680A1 (en) | 2019-04-25 |
BRPI0815972B1 (pt) | 2020-02-04 |
HK1143239A1 (en) | 2010-12-24 |
CN101939782B (zh) | 2012-12-05 |
EP2186086B1 (en) | 2013-01-23 |
CN101939782A (zh) | 2011-01-05 |
DK2571024T3 (en) | 2015-01-05 |
PT2571024E (pt) | 2014-12-23 |
US10878829B2 (en) | 2020-12-29 |
EP2186086A4 (en) | 2012-01-25 |
US20210110836A1 (en) | 2021-04-15 |
BRPI0815972A2 (pt) | 2015-09-29 |
JP5183741B2 (ja) | 2013-04-17 |
EP2186086A1 (en) | 2010-05-19 |
US20160086614A1 (en) | 2016-03-24 |
BRPI0815972A8 (pt) | 2017-11-14 |
JP5458189B2 (ja) | 2014-04-02 |
JP2010538318A (ja) | 2010-12-09 |
JP2013117730A (ja) | 2013-06-13 |
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