AR076237A1 - Aparato y metodo para generar una senal de audio de sintesis y para codificar una senal de audio. - Google Patents
Aparato y metodo para generar una senal de audio de sintesis y para codificar una senal de audio.Info
- Publication number
- AR076237A1 AR076237A1 ARP100101184A ARP100101184A AR076237A1 AR 076237 A1 AR076237 A1 AR 076237A1 AR P100101184 A ARP100101184 A AR P100101184A AR P100101184 A ARP100101184 A AR P100101184A AR 076237 A1 AR076237 A1 AR 076237A1
- Authority
- AR
- Argentina
- Prior art keywords
- spectral
- patch
- audio signal
- signal
- domain
- 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 senal de audio de síntesis que utiliza una senal de control de parches comprende un primer convertidor, un generador de parches en el dominio espectral, un manipulador de reconstruccion de alta frecuencia y un combinador. El primer convertidor está configurado para convertir una porcion de tiempo de una senal de audio en una representacion espectral. El generador de parches en el dominio espectral está configurado para ejecutar una pluralidad de algoritmos espectrales diferentes en el dominio espectral, donde cada algoritmo de parche genera una representacion espectral modificada que comprende componentes espectrales de una banda de frecuencia superior derivada de correspondientes componentes espectrales de una banda de frecuencia del nucleo de la senal de audio. El generador de parches en el dominio espectral está configurado además para seleccionar un primer algoritmo de parches en el dominio espectral de la pluralidad de algoritmos de parches para una primera porcion de tiempo y un segundo algoritmo de parches en el dominio espectral de la pluralidad de algoritmos de parche para una segunda porcion de tiempo diferente de acuerdo con la senal de control de parches para obtener la representacion espectral modificada. El manipulador de reconstruccion de alta frecuencia está configurado para manipular la representacion espectral modificada o una senal derivada de la representacion espectral modificada de acuerdo con un parámetro de replicacion de la banda espectral para obtener una senal de extension del ancho de banda. Por ultimo, el combinador está configurado para combinar la senal de audio que tiene componentes espectrales en la banda de la frecuencia del nucleo o una senal derivada de la senal de audio con la senal de ancho de banda extendido para obtener la senal de audio de síntesis.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 |
|---|---|
| AR076237A1 true AR076237A1 (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 Before (1)
| 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 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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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