CO6511277A2 - Sistema y método para normalizasr de manera no destructiva la sonoridad de la señales de audio dentro de dispositivos portatiles - Google Patents

Sistema y método para normalizasr de manera no destructiva la sonoridad de la señales de audio dentro de dispositivos portatiles

Info

Publication number
CO6511277A2
CO6511277A2 CO12127728A CO12127728A CO6511277A2 CO 6511277 A2 CO6511277 A2 CO 6511277A2 CO 12127728 A CO12127728 A CO 12127728A CO 12127728 A CO12127728 A CO 12127728A CO 6511277 A2 CO6511277 A2 CO 6511277A2
Authority
CO
Colombia
Prior art keywords
destructively
sound
audio signals
portable devices
dynamic range
Prior art date
Application number
CO12127728A
Other languages
English (en)
Inventor
Jeffrey C Riedmiller
Harald H Mundt
Michael Schug
Martin Wolters
Original Assignee
Dolby Lab Licensing Corp
Dolby Int Ab
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 Dolby Lab Licensing Corp, Dolby Int Ab filed Critical Dolby Lab Licensing Corp
Publication of CO6511277A2 publication Critical patent/CO6511277A2/es

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • 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
    • G10L19/18—Vocoders using multiple modes
    • G10L19/22—Mode decision, i.e. based on audio signal content versus external parameters
    • 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
    • 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 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
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3089—Control of digital or coded signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/32—Automatic control in amplifiers having semiconductor devices the control being dependent upon ambient noise level or sound level
    • 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

Landscapes

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

Abstract

Muchos dispositivos portátiles de reproducción de sonido no pueden decodificar y reproducir el contenido codificado de audio que tenga una banda ancha y un amplio rango dinámico con sonoridad e inteligibilidad consistentes a menos que el contenido codificado de audio estuviese preparado especialmente para estos dispositivos. Este problema se puede superar si se incluye en el contenido codificado unos metadatos que especifiquen un perfil adecuado de compresión de rango dinámico ya sea por valores absolutos o por valores diferenciales relativos a otro perfil conocido de compresión. Asimismo un dispositivo de reproducción de sonido pregrabado puede adaptarse para aplicar ganancia y limitación al audio pregrabado. Se revelan implementaciones en codificadores, en transcodificadores y en decodificadores.
CO12127728A 2010-02-11 2012-07-30 Sistema y método para normalizasr de manera no destructiva la sonoridad de la señales de audio dentro de dispositivos portatiles CO6511277A2 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US30364310P 2010-02-11 2010-02-11

Publications (1)

Publication Number Publication Date
CO6511277A2 true CO6511277A2 (es) 2012-08-31

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CO12127728A CO6511277A2 (es) 2010-02-11 2012-07-30 Sistema y método para normalizasr de manera no destructiva la sonoridad de la señales de audio dentro de dispositivos portatiles

Country Status (18)

Country Link
US (7) US8903729B2 (es)
EP (3) EP3444816B8 (es)
JP (2) JP5666625B2 (es)
KR (1) KR101381588B1 (es)
CN (2) CN103795364B (es)
AR (1) AR080156A1 (es)
BR (2) BR122019025627B1 (es)
CA (6) CA2787466C (es)
CL (1) CL2012002213A1 (es)
CO (1) CO6511277A2 (es)
EA (1) EA023730B9 (es)
ES (1) ES2916403T3 (es)
MX (1) MX2012008954A (es)
MY (1) MY169981A (es)
SG (1) SG182632A1 (es)
TW (2) TWI447709B (es)
UA (1) UA105277C2 (es)
WO (1) WO2011100155A1 (es)

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