AR076199A1 - Aparato, metodo y programa de computacion para generar una representacion de una senal de ancho de banda ampliado en base a la representacion de una senal de entrada utilizando una combinacion de una ampliacion de ancho de banda armonico y una ampliacion de ancho de banda no armonico - Google Patents
Aparato, metodo y programa de computacion para generar una representacion de una senal de ancho de banda ampliado en base a la representacion de una senal de entrada utilizando una combinacion de una ampliacion de ancho de banda armonico y una ampliacion de ancho de banda no armonicoInfo
- Publication number
- AR076199A1 AR076199A1 ARP100101129A ARP100101129A AR076199A1 AR 076199 A1 AR076199 A1 AR 076199A1 AR P100101129 A ARP100101129 A AR P100101129A AR P100101129 A ARP100101129 A AR P100101129A AR 076199 A1 AR076199 A1 AR 076199A1
- Authority
- AR
- Argentina
- Prior art keywords
- representation
- bandwidth
- extension
- patch
- input signal
- Prior art date
Links
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
- 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
- G10L21/04—Time compression or expansion
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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
- G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
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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
- G10L19/04—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
- G10L19/16—Vocoder architecture
- G10L19/18—Vocoders using multiple modes
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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
- 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
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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
- G10L19/02—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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Multimedia (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Signal Processing (AREA)
- Acoustics & Sound (AREA)
- Computational Linguistics (AREA)
- Health & Medical Sciences (AREA)
- Quality & Reliability (AREA)
- Mathematical Physics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Stereophonic System (AREA)
- Complex Calculations (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Stored Programmes (AREA)
Abstract
Un aparato para generar una representacion de una senal de ancho de banda ampliado sobre la base de la representacion de una senal de entrada comprende un vocodificador de fases configurado para obtener los valores de una representacion en el dominio espectral de un primer parche de la senal de ancho de banda ampliado sobre la base de la representacion de la senal de entrada. El aparato comprende además una copiadora de valores configurada para copiar una serie de valores de la representacion en el dominio espectral del primer parche, valores que son provistos por el vocodificador de fases, para obtener una serie de valores de una representacion en el dominio espectral de un segundo parche, donde el segundo parche está asociado a frecuencias más elevadas que el primer parche. El aparato está configurado para obtener la representacion de la senal de ancho de banda ampliado usando los valores de la representacion en el dominio espectral del primer parche y los valores de la representacion en el dominio espectral del segundo parche.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US16612509P | 2009-04-02 | 2009-04-02 | |
| US16806809P | 2009-04-09 | 2009-04-09 | |
| EP09181008A EP2239732A1 (en) | 2009-04-09 | 2009-12-30 | Apparatus and method for generating a synthesis audio signal and for encoding an audio signal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AR076199A1 true AR076199A1 (es) | 2011-05-26 |
Family
ID=42123165
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ARP100101129A AR076199A1 (es) | 2009-04-02 | 2010-04-05 | Aparato, metodo y programa de computacion para generar una representacion de una senal de ancho de banda ampliado en base a la representacion de una senal de entrada utilizando una combinacion de una ampliacion de ancho de banda armonico y una ampliacion de ancho de banda no armonico |
| ARP100101184A AR076237A1 (es) | 2009-04-09 | 2010-04-08 | Aparato y metodo para generar una senal de audio de sintesis y para codificar una senal de audio. |
| ARP140103280A AR097531A2 (es) | 2009-04-09 | 2014-09-02 | Aparato y método para generar una señal de audio de síntesis utilizando una señal de control de generación de parches, aparato y método para codificar una señal de audio, señal codificada y medio de alimentación no transitorio |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ARP100101184A AR076237A1 (es) | 2009-04-09 | 2010-04-08 | Aparato y metodo para generar una senal de audio de sintesis y para codificar una senal de audio. |
| ARP140103280A AR097531A2 (es) | 2009-04-09 | 2014-09-02 | Aparato y método para generar una señal de audio de síntesis utilizando una señal de control de generación de parches, aparato y método para codificar una señal de audio, señal codificada y medio de alimentación no transitorio |
Country Status (20)
| Country | Link |
|---|---|
| US (14) | US9697838B2 (es) |
| EP (3) | EP2239732A1 (es) |
| JP (2) | JP5227459B2 (es) |
| KR (2) | KR101248321B1 (es) |
| CN (2) | CN102177545B (es) |
| AR (3) | AR076199A1 (es) |
| AT (1) | ATE534119T1 (es) |
| AU (2) | AU2010233858B9 (es) |
| BR (1) | BRPI1003636B1 (es) |
| CA (2) | CA2721629C (es) |
| CO (1) | CO6311123A2 (es) |
| EG (1) | EG26400A (es) |
| ES (2) | ES2396686T3 (es) |
| MX (2) | MX2011002419A (es) |
| MY (2) | MY153798A (es) |
| PL (2) | PL2351025T3 (es) |
| RU (1) | RU2501097C2 (es) |
| SG (1) | SG174113A1 (es) |
| TW (2) | TWI492222B (es) |
| WO (2) | WO2010112587A1 (es) |
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| RU2452044C1 (ru) * | 2009-04-02 | 2012-05-27 | Фраунхофер-Гезелльшафт цур Фёрдерунг дер ангевандтен Форшунг Е.Ф. | Устройство, способ и носитель с программным кодом для генерирования представления сигнала с расширенным диапазоном частот на основе представления входного сигнала с использованием сочетания гармонического расширения диапазона частот и негармонического расширения диапазона частот |
| 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 |
| 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 |
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