MX2016008172A - Metodo y aparato de decodificacion, y programa. - Google Patents

Metodo y aparato de decodificacion, y programa.

Info

Publication number
MX2016008172A
MX2016008172A MX2016008172A MX2016008172A MX2016008172A MX 2016008172 A MX2016008172 A MX 2016008172A MX 2016008172 A MX2016008172 A MX 2016008172A MX 2016008172 A MX2016008172 A MX 2016008172A MX 2016008172 A MX2016008172 A MX 2016008172A
Authority
MX
Mexico
Prior art keywords
gain
code string
signal
value
interpolation
Prior art date
Application number
MX2016008172A
Other languages
English (en)
Inventor
Honma Hiroyuki
Chinen Toru
Yamamoto Yuki
Shi Runyu
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Publication of MX2016008172A publication Critical patent/MX2016008172A/es

Links

Classifications

    • 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
    • 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
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G11/00—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general
    • H03G11/008—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general of digital or coded signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/002—Volume compression or expansion in amplifiers in untuned or low-frequency amplifiers, e.g. audio amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/007—Volume compression or expansion in amplifiers of digital or coded signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
    • H03G9/005—Combinations of two or more types of control, e.g. gain control and tone control of digital or coded signals
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0012—Smoothing of parameters of the decoder interpolation
    • 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
    • G10L21/0316—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude
    • G10L21/0324—Details of processing therefor
    • G10L21/034—Automatic adjustment
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control

Landscapes

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

Abstract

La tecnología presente se refiere a un aparato de decodificación, un método de decodificación y un programa el cual hace posible obtener el sonido con calidad elevada. Un circuito de demultiplexado demultiplexa una serie de códigos de entrada en una serie de códigos de ganancia y una serie de códigos de señal. Una señal del circuito de decodificación decodifica la serie de códigos de señal para emitir una señal de serie temporal. Un circuito de decodificación de ganancia decodifica la serie de código de ganancia. Es decir, el circuito de decodificación de ganancia de lectura de los valores de ganancia y los valores de inclinación de ganancia en posiciones de muestra de ganancia predeterminados de la señal de serie temporal y la información del modo de interpolación. Una unidad de procesamiento de interpolación obtiene un valor de ganancia en cada posición de muestra entre dos posiciones de muestra de ganancia a través de la interpolación lineal o la interpolación no lineal de acuerdo al modo de interpolación basado en los valores de ganancia y los valores de inclinación de ganancia. Un circuito de aplicación de ganancia ajusta una ganancia de la señal de serie temporal basada en los valores de ganancia. La tecnología presente puede ser aplicada al aparato de decodificación.
MX2016008172A 2013-12-27 2014-12-12 Metodo y aparato de decodificacion, y programa. MX2016008172A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013272943 2013-12-27
PCT/JP2014/082925 WO2015098564A1 (ja) 2013-12-27 2014-12-12 復号化装置および方法、並びにプログラム

Publications (1)

Publication Number Publication Date
MX2016008172A true MX2016008172A (es) 2016-10-21

Family

ID=53478428

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2016008172A MX2016008172A (es) 2013-12-27 2014-12-12 Metodo y aparato de decodificacion, y programa.

Country Status (14)

Country Link
US (3) US10692511B2 (es)
EP (2) EP3608909B1 (es)
JP (4) JP6593173B2 (es)
KR (3) KR102356012B1 (es)
CN (1) CN105849801B (es)
AU (1) AU2014371411A1 (es)
BR (1) BR112016014476B1 (es)
CA (2) CA3162763A1 (es)
MX (1) MX2016008172A (es)
MY (1) MY188538A (es)
RU (2) RU2667627C1 (es)
SG (1) SG11201605015XA (es)
TW (1) TWI644308B (es)
WO (1) WO2015098564A1 (es)

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