MX345963B - Asignación de bits, codificación y decodificación de audio. - Google Patents

Asignación de bits, codificación y decodificación de audio.

Info

Publication number
MX345963B
MX345963B MX2016003429A MX2016003429A MX345963B MX 345963 B MX345963 B MX 345963B MX 2016003429 A MX2016003429 A MX 2016003429A MX 2016003429 A MX2016003429 A MX 2016003429A MX 345963 B MX345963 B MX 345963B
Authority
MX
Mexico
Prior art keywords
decoding
frequency band
bit allocating
bits
audio encoding
Prior art date
Application number
MX2016003429A
Other languages
English (en)
Inventor
Oh Eun-Mi
Kim Mi-Young
Porov Anton
Original Assignee
Samsung Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of MX345963B publication Critical patent/MX345963B/es

Links

Classifications

    • 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
    • G10L19/028—Noise substitution, i.e. substituting non-tonal spectral components by noisy source
    • 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
    • G10L19/26—Pre-filtering or post-filtering
    • 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
    • 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 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
    • G10L19/032—Quantisation or dequantisation of spectral components
    • 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
    • G10L19/167—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 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
    • G10L21/0208—Noise filtering
    • G10L21/0216—Noise filtering characterised by the method used for estimating noise
    • G10L21/0232—Processing in the frequency domain
    • 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
    • G10L19/002—Dynamic bit allocation

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Computational Linguistics (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

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.
MX2016003429A 2011-05-13 2012-05-14 Asignación de bits, codificación y decodificación de audio. MX345963B (es)

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
MX345963B true MX345963B (es) 2017-02-28

Family

ID=47141906

Family Applications (3)

Application Number Title Priority Date Filing Date
MX2015005615A MX337772B (es) 2011-05-13 2012-05-14 Asignacion de bits, codificacion y decodificacion de audio.
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.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
MX2015005615A MX337772B (es) 2011-05-13 2012-05-14 Asignacion de bits, codificacion y decodificacion de audio.

Family Applications After (1)

Application Number Title Priority Date Filing Date
MX2013013261A MX2013013261A (es) 2011-05-13 2012-05-14 Asignacion de bits, codificacion y decodificacion de audio.

Country Status (15)

Country Link
US (7) US9159331B2 (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) MX337772B (es)
MY (2) MY186720A (es)
RU (2) RU2648595C2 (es)
SG (1) SG194945A1 (es)
TW (5) TWI606441B (es)
WO (2) WO2012157931A2 (es)
ZA (1) ZA201309406B (es)

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