AR072864A1 - Sintetizador de senales de audio y codificador de senales de audio - Google Patents
Sintetizador de senales de audio y codificador de senales de audioInfo
- Publication number
- AR072864A1 AR072864A1 ARP090102549A ARP090102549A AR072864A1 AR 072864 A1 AR072864 A1 AR 072864A1 AR P090102549 A ARP090102549 A AR P090102549A AR P090102549 A ARP090102549 A AR P090102549A AR 072864 A1 AR072864 A1 AR 072864A1
- Authority
- AR
- Argentina
- Prior art keywords
- signal
- unprocessed
- spectral
- audio signal
- interconnection
- Prior art date
Links
- 230000003595 spectral effect Effects 0.000 abstract 9
- 230000005236 sound signal Effects 0.000 abstract 7
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 230000010076 replication Effects 0.000 abstract 1
- 238000003786 synthesis reaction Methods 0.000 abstract 1
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
- 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
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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
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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
- G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
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)
- Computational Linguistics (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Theoretical Computer Science (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
- Stereophonic System (AREA)
- Circuit For Audible Band Transducer (AREA)
- Reverberation, Karaoke And Other Acoustics (AREA)
Abstract
De acuerdo con un primer aspecto de la presente, un sintetizador de senales de audio genera una senal de audio de síntesis con una primera banda de frecuencia y una segunda banda de frecuencia sintetizada derivada de la primera banda de frecuencia. El sintetizador de senales de audio comprende un generador de interconexion, un conversor espectral, un procesador de senales no procesadas y un combinador. El generador de interconexion lleva a cabo al menos dos algoritmos de interconexion diferentes, donde cada algoritmo de interconexion genera una senal no procesada con componentes de senal en la segunda banda de frecuencia sintetizada utilizando una senal de audio con componentes de senal en la primera banda de frecuencia. El generador de interconexion está adaptado para seleccionar uno de los al menos dos algoritmos de interconexion diferentes en respuesta a una informacion de control para una primera parte de tiempo y otro de los al menos dos algoritmos de interconexion diferentes en respuesta a la informacion de control para una segunda parte de tiempo que se diferencia de la primera parte de tiempo con el fin de obtener una senal no procesada para la primera parte de tiempo y la segunda parte de tiempo. El conversor espectral convierte la senal no procesada en una representacion espectral de senal no procesada. El procesador de senales no procesadas procesa la representacion espectral de senal no procesada en respuesta a parámetros de replicacion de banda espectral del dominio espectral con el fin de obtener una representacion espectral de senal no procesada ajustada. El combinador combina una senal de audio con componentes de senal en la primera banda o una senal derivada de la senal de audio con la representacion espectral de senal no procesada ajustada o con otra senal derivada de la representacion espectral de senal no procesada ajustada con el fin de obtener la senal de audio de síntesis.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US7983908P | 2008-07-11 | 2008-07-11 | |
US10382008P | 2008-10-08 | 2008-10-08 | |
PCT/EP2009/004451 WO2010003539A1 (en) | 2008-07-11 | 2009-06-19 | Audio signal synthesizer and audio signal encoder |
Publications (1)
Publication Number | Publication Date |
---|---|
AR072864A1 true AR072864A1 (es) | 2010-09-29 |
Family
ID=41120013
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ARP090102549A AR072864A1 (es) | 2008-07-11 | 2009-07-07 | Sintetizador de senales de audio y codificador de senales de audio |
Country Status (16)
Country | Link |
---|---|
US (3) | US8731948B2 (es) |
EP (1) | EP2301026B1 (es) |
JP (1) | JP5244971B2 (es) |
KR (1) | KR101223835B1 (es) |
CN (1) | CN102089816B (es) |
AR (1) | AR072864A1 (es) |
AU (1) | AU2009267525B2 (es) |
BR (1) | BRPI0910792B1 (es) |
CA (1) | CA2730198C (es) |
CO (1) | CO6341675A2 (es) |
ES (1) | ES2796552T3 (es) |
MX (1) | MX2011000372A (es) |
RU (1) | RU2491658C2 (es) |
TW (1) | TWI441162B (es) |
WO (1) | WO2010003539A1 (es) |
ZA (1) | ZA201009208B (es) |
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2009
- 2009-06-19 KR KR1020117000298A patent/KR101223835B1/ko active IP Right Grant
- 2009-06-19 CA CA2730198A patent/CA2730198C/en active Active
- 2009-06-19 RU RU2011101616/08A patent/RU2491658C2/ru active
- 2009-06-19 JP JP2011516984A patent/JP5244971B2/ja active Active
- 2009-06-19 ES ES09776790T patent/ES2796552T3/es active Active
- 2009-06-19 BR BRPI0910792-4A patent/BRPI0910792B1/pt active IP Right Grant
- 2009-06-19 AU AU2009267525A patent/AU2009267525B2/en active Active
- 2009-06-19 EP EP09776790.9A patent/EP2301026B1/en active Active
- 2009-06-19 MX MX2011000372A patent/MX2011000372A/es active IP Right Grant
- 2009-06-19 CN CN2009801270950A patent/CN102089816B/zh active Active
- 2009-06-19 WO PCT/EP2009/004451 patent/WO2010003539A1/en active Application Filing
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US8731948B2 (en) | 2014-05-20 |
EP2301026A1 (en) | 2011-03-30 |
WO2010003539A1 (en) | 2010-01-14 |
TWI441162B (zh) | 2014-06-11 |
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CN102089816B (zh) | 2013-01-30 |
AU2009267525B2 (en) | 2012-12-20 |
RU2491658C2 (ru) | 2013-08-27 |
KR101223835B1 (ko) | 2013-01-17 |
RU2011101616A (ru) | 2012-07-27 |
ZA201009208B (en) | 2011-10-26 |
EP2301026B1 (en) | 2020-03-04 |
KR20110040817A (ko) | 2011-04-20 |
BRPI0910792A2 (pt) | 2015-10-06 |
US10014000B2 (en) | 2018-07-03 |
US20140222434A1 (en) | 2014-08-07 |
US10522168B2 (en) | 2019-12-31 |
CA2730198C (en) | 2014-09-16 |
MX2011000372A (es) | 2011-05-19 |
CN102089816A (zh) | 2011-06-08 |
CO6341675A2 (es) | 2011-11-21 |
BRPI0910792B1 (pt) | 2020-03-24 |
AU2009267525A1 (en) | 2010-01-14 |
ES2796552T3 (es) | 2020-11-27 |
TW201009807A (en) | 2010-03-01 |
US20110173006A1 (en) | 2011-07-14 |
JP5244971B2 (ja) | 2013-07-24 |
JP2011527447A (ja) | 2011-10-27 |
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