AR098078A2 - Aparato y método para codificar una señal de audio que tiene una pluralidad de canales - Google Patents
Aparato y método para codificar una señal de audio que tiene una pluralidad de canalesInfo
- Publication number
- AR098078A2 AR098078A2 ARP140103883A ARP140103883A AR098078A2 AR 098078 A2 AR098078 A2 AR 098078A2 AR P140103883 A ARP140103883 A AR P140103883A AR P140103883 A ARP140103883 A AR P140103883A AR 098078 A2 AR098078 A2 AR 098078A2
- Authority
- AR
- Argentina
- Prior art keywords
- signal
- channels
- audio signal
- calculate
- phase information
- Prior art date
Links
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
- 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 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
- G10L19/0017—Lossless audio signal coding; Perfect reconstruction of coded audio signal by transmission of coding error
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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
- G10L19/008—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 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
-
- 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
- G10L19/022—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
Abstract
Un aparato para codificar una señal de audio que tiene una pluralidad de canales, que comprende un mezclador en forma descendente (1010) para mezclar en forma descendente una pluralidad de canales para obtener una señal mezclada en forma descendente; un calculador de señal residual (1020) adaptado para calcular una señal residual; un calculador de información de fase (1030) adaptado para calcular información sobre una diferencia de fase entre la señal mezclada en forma descendente y la residual para obtener información de fase; y un generador de salida (1040) para entregar como salida la información de fase. El presente también comprende un método para codificar una señal de audio que tiene una pluralidad de canales, que comprende: mezclar en forma descendente la pluralidad de canales para obtener una señal de mezcla descendente; calcular una señal residual; calcular información sobre una diferencia de fase entre la señal de mezcla descendente y la señal residual para obtener información de fase; y entregar como salida la información de fase.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US37698010P | 2010-08-25 | 2010-08-25 |
Publications (1)
Publication Number | Publication Date |
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AR098078A2 true AR098078A2 (es) | 2016-04-27 |
Family
ID=44509236
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ARP110103079A AR082542A1 (es) | 2010-08-25 | 2011-08-24 | Aparato para decodificar una señal que contiene componentes transitorios usando una unidad combinadora y un mezclador |
ARP110103080A AR082543A1 (es) | 2010-08-25 | 2011-08-24 | Aparato para generar una señal decorrelacionada usando informacion de fase transmitida |
ARP140103883A AR098078A2 (es) | 2010-08-25 | 2014-10-17 | Aparato y método para codificar una señal de audio que tiene una pluralidad de canales |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ARP110103079A AR082542A1 (es) | 2010-08-25 | 2011-08-24 | Aparato para decodificar una señal que contiene componentes transitorios usando una unidad combinadora y un mezclador |
ARP110103080A AR082543A1 (es) | 2010-08-25 | 2011-08-24 | Aparato para generar una señal decorrelacionada usando informacion de fase transmitida |
Country Status (21)
Country | Link |
---|---|
US (3) | US9431019B2 (es) |
EP (5) | EP2609591B1 (es) |
JP (3) | JP5775582B2 (es) |
KR (2) | KR101445291B1 (es) |
CN (2) | CN103180898B (es) |
AR (3) | AR082542A1 (es) |
AU (2) | AU2011295368B2 (es) |
BR (2) | BR112013004365B1 (es) |
CA (3) | CA2887939C (es) |
ES (3) | ES2544077T3 (es) |
HK (2) | HK1186833A1 (es) |
MX (2) | MX2013002187A (es) |
MY (3) | MY180970A (es) |
PL (3) | PL2609590T3 (es) |
PT (2) | PT3144932T (es) |
RU (3) | RU2573774C2 (es) |
SG (3) | SG187950A1 (es) |
TR (1) | TR201900417T4 (es) |
TW (2) | TWI457912B (es) |
WO (2) | WO2012025282A1 (es) |
ZA (1) | ZA201302050B (es) |
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2011
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- 2011-07-06 EP EP18199217.3A patent/EP3471091A1/en active Pending
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