AR097473A2 - Método de codificación y codificador para generar datos de salida por ampliación de ancho de banda - Google Patents
Método de codificación y codificador para generar datos de salida por ampliación de ancho de bandaInfo
- Publication number
- AR097473A2 AR097473A2 ARP140103215A ARP140103215A AR097473A2 AR 097473 A2 AR097473 A2 AR 097473A2 AR P140103215 A ARP140103215 A AR P140103215A AR P140103215 A ARP140103215 A AR P140103215A AR 097473 A2 AR097473 A2 AR 097473A2
- Authority
- AR
- Argentina
- Prior art keywords
- output data
- coding
- data
- frequency band
- audio signal
- 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
- 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
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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
-
- 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
- G10L19/0204—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
- G10L19/0208—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
-
- 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
- G10L19/04—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
- G10L19/20—Vocoders using multiple modes using sound class specific coding, hybrid encoders or object based coding
Abstract
Un método y un codificador para generar datos de salida del ancho de banda para una señal de audio que comprende un medidor del piso de ruido (110), un caracterizador de energía de la señal (120) y un procesador (130). La señal de audio comprende componentes en una primera banda de frecuencia (105a) y componentes en una segunda banda de frecuencia, los datos de salida del ancho de banda están adaptados para controlar una síntesis de los componentes en la segunda banda de frecuencia. El medidor del piso de ruido (110) mide los datos del piso de ruido data (115) de la segunda banda de frecuencia para una porción de tiempo de la señal de audio. El caracterizador de energía de la señal (120) deriva los datos de distribución de energía (125), los datos de distribución de energía (125) caracterizan una distribución de energía en un espectro de la porción de tiempo de la señal de audio. El procesador (130) combina los datos del piso de ruido y los datos de distribución de energía (125) para obtener los datos de salida del ancho de banda.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US7984108P | 2008-07-11 | 2008-07-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
AR097473A2 true AR097473A2 (es) | 2016-03-16 |
Family
ID=40902067
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ARP090102548A AR072552A1 (es) | 2008-07-11 | 2009-07-07 | Un aparato y un metodo para calcular una cantidad de envolventes espectrales |
ARP090102546A AR072480A1 (es) | 2008-07-11 | 2009-07-07 | Un aparato y un metodo para generar datos de salida por ampliacion de ancho de banda |
ARP140103215A AR097473A2 (es) | 2008-07-11 | 2014-08-27 | Método de codificación y codificador para generar datos de salida por ampliación de ancho de banda |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ARP090102548A AR072552A1 (es) | 2008-07-11 | 2009-07-07 | Un aparato y un metodo para calcular una cantidad de envolventes espectrales |
ARP090102546A AR072480A1 (es) | 2008-07-11 | 2009-07-07 | Un aparato y un metodo para generar datos de salida por ampliacion de ancho de banda |
Country Status (20)
Country | Link |
---|---|
US (2) | US8296159B2 (es) |
EP (2) | EP2301027B1 (es) |
JP (2) | JP5628163B2 (es) |
KR (5) | KR101395252B1 (es) |
CN (2) | CN102089817B (es) |
AR (3) | AR072552A1 (es) |
AU (2) | AU2009267530A1 (es) |
BR (2) | BRPI0910517B1 (es) |
CA (2) | CA2729971C (es) |
CO (2) | CO6341676A2 (es) |
ES (2) | ES2539304T3 (es) |
HK (2) | HK1156140A1 (es) |
IL (2) | IL210196A (es) |
MX (2) | MX2011000361A (es) |
MY (2) | MY153594A (es) |
PL (2) | PL2301028T3 (es) |
RU (2) | RU2487428C2 (es) |
TW (2) | TWI415115B (es) |
WO (2) | WO2010003546A2 (es) |
ZA (2) | ZA201009207B (es) |
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2009
- 2009-06-23 ES ES09776809.7T patent/ES2539304T3/es active Active
- 2009-06-23 MY MYPI2011000063A patent/MY153594A/en unknown
- 2009-06-23 PL PL09776811T patent/PL2301028T3/pl unknown
- 2009-06-23 ES ES09776811T patent/ES2398627T3/es active Active
- 2009-06-23 CA CA2729971A patent/CA2729971C/en active Active
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