MX337772B - Asignacion de bits, codificacion y decodificacion de audio. - Google Patents
Asignacion de bits, codificacion y decodificacion de audio.Info
- Publication number
- MX337772B MX337772B MX2015005615A MX2015005615A MX337772B MX 337772 B MX337772 B MX 337772B MX 2015005615 A MX2015005615 A MX 2015005615A MX 2015005615 A MX2015005615 A MX 2015005615A MX 337772 B MX337772 B MX 337772B
- Authority
- MX
- Mexico
- Prior art keywords
- decoding
- frequency band
- bit allocating
- bits
- audio encoding
- 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
- G10L19/002—Dynamic bit allocation
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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
- G10L19/04—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
- G10L19/26—Pre-filtering or post-filtering
-
- 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
-
- 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
- G10L19/028—Noise substitution, i.e. substituting non-tonal spectral components by noisy source
-
- 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
- G10L19/032—Quantisation or dequantisation of spectral components
-
- 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
- G10L19/167—Audio streaming, i.e. formatting and decoding of an encoded audio signal representation into a data stream for transmission or storage purposes
-
- 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
- G10L21/0208—Noise filtering
- G10L21/0216—Noise filtering characterised by the method used for estimating noise
- G10L21/0232—Processing in the frequency domain
Abstract
Es proporcionado un método de asignación de bits que incluye determinar el número asignado de bits en unidades de punto decimal en función de cada banda de frecuencia, de modo que la Relación de Señal-a-Ruido (SNR) de un espectro existente en una banda predeterminada de frecuencia es maximizada dentro de un intervalo del número permisible de bits para un cuadro dado; y ajustar el número asignado de bits en función de cada banda de frecuencia.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201161485741P | 2011-05-13 | 2011-05-13 | |
US201161495014P | 2011-06-09 | 2011-06-09 | |
PCT/KR2012/003777 WO2012157932A2 (en) | 2011-05-13 | 2012-05-14 | Bit allocating, audio encoding and decoding |
Publications (1)
Publication Number | Publication Date |
---|---|
MX337772B true MX337772B (es) | 2016-03-18 |
Family
ID=47141906
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX2016003429A MX345963B (es) | 2011-05-13 | 2012-05-14 | Asignación de bits, codificación y decodificación de audio. |
MX2013013261A MX2013013261A (es) | 2011-05-13 | 2012-05-14 | Asignacion de bits, codificacion y decodificacion de audio. |
MX2015005615A MX337772B (es) | 2011-05-13 | 2012-05-14 | Asignacion de bits, codificacion y decodificacion de audio. |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX2016003429A MX345963B (es) | 2011-05-13 | 2012-05-14 | Asignación de bits, codificación y decodificación de audio. |
MX2013013261A MX2013013261A (es) | 2011-05-13 | 2012-05-14 | Asignacion de bits, codificacion y decodificacion de audio. |
Country Status (15)
Country | Link |
---|---|
US (7) | US9236057B2 (es) |
EP (5) | EP2707875A4 (es) |
JP (3) | JP6189831B2 (es) |
KR (7) | KR102053900B1 (es) |
CN (3) | CN103650038B (es) |
AU (3) | AU2012256550B2 (es) |
BR (1) | BR112013029347B1 (es) |
CA (1) | CA2836122C (es) |
MX (3) | MX345963B (es) |
MY (2) | MY164164A (es) |
RU (2) | RU2648595C2 (es) |
SG (1) | SG194945A1 (es) |
TW (5) | TWI562133B (es) |
WO (2) | WO2012157931A2 (es) |
ZA (1) | ZA201309406B (es) |
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