BRPI0512882A - método para corrigir os metadados que afetam a sonoridade de reprodução e a faixa dinámica de informações de áudio - Google Patents

método para corrigir os metadados que afetam a sonoridade de reprodução e a faixa dinámica de informações de áudio

Info

Publication number
BRPI0512882A
BRPI0512882A BRPI0512882-0A BRPI0512882A BRPI0512882A BR PI0512882 A BRPI0512882 A BR PI0512882A BR PI0512882 A BRPI0512882 A BR PI0512882A BR PI0512882 A BRPI0512882 A BR PI0512882A
Authority
BR
Brazil
Prior art keywords
audio information
metadata
dynamic range
soundness
values
Prior art date
Application number
BRPI0512882-0A
Other languages
English (en)
Inventor
Michael John Smithers
Jeffrey Charles Riedmiller
Charles Quito Robinson
Brett Graham Crockett
Original Assignee
Dolby Lab Licensing 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 Dolby Lab Licensing Corp filed Critical Dolby Lab Licensing Corp
Publication of BRPI0512882A publication Critical patent/BRPI0512882A/pt
Publication of BRPI0512882B1 publication Critical patent/BRPI0512882B1/pt

Links

Classifications

    • 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
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Management Or Editing Of Information On Record Carriers (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Control Of Amplification And Gain Control (AREA)

Abstract

MéTODO PARA CORRIGIR OS METADADOS QUE AFETAM A SONORIDADE DE REPRODUçãO E A FAIXA DINáMICA DE INFORMAçõES DE áUDIO. A presente invenção refere-se a um sinal codificado que transporta informações de áudio codificadas e metadados que podem ser utilizados para controlar a sonoridade e a faixa dinâmica das informações de áudio durante a sua reprodução. Se os valores para estes parâmetros de metadados forem incorretamente ajustados, flutuações irritantes em sonoridade durante a reprodução podem resultar. A presente invenção supera este problema detectando os valores de parâmetro de metadados incorretos no sinal e substituindo os valores incorretos por valores corrigidos.
BRPI0512882-0A 2004-07-01 2005-04-08 Método para corrigir os metadados que afetam a sonoridade de reprodução e a faixa dinâmica de informações de áudio BRPI0512882B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/884,177 2004-07-01
US10/884,177 US7617109B2 (en) 2004-07-01 2004-07-01 Method for correcting metadata affecting the playback loudness and dynamic range of audio information
PCT/US2005/011862 WO2006006977A1 (en) 2004-07-01 2005-04-08 Method for correcting metadata affecting the playback loudness and dynamic range of audio information

Publications (2)

Publication Number Publication Date
BRPI0512882A true BRPI0512882A (pt) 2008-04-15
BRPI0512882B1 BRPI0512882B1 (pt) 2018-02-14

Family

ID=34965214

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0512882-0A BRPI0512882B1 (pt) 2004-07-01 2005-04-08 Método para corrigir os metadados que afetam a sonoridade de reprodução e a faixa dinâmica de informações de áudio

Country Status (13)

Country Link
US (2) US7617109B2 (pt)
EP (2) EP2214308A1 (pt)
JP (1) JP4726898B2 (pt)
KR (2) KR101112565B1 (pt)
CN (1) CN1973434B (pt)
AT (1) ATE488911T1 (pt)
AU (1) AU2005262870B2 (pt)
BR (1) BRPI0512882B1 (pt)
CA (1) CA2566345C (pt)
DE (1) DE602005024812D1 (pt)
IL (1) IL179309A (pt)
MX (1) MXPA06015132A (pt)
WO (1) WO2006006977A1 (pt)

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IL179309A0 (en) 2007-03-08
JP4726898B2 (ja) 2011-07-20
WO2006006977A1 (en) 2006-01-19
US8032385B2 (en) 2011-10-04
IL179309A (en) 2010-12-30
EP2214308A1 (en) 2010-08-04
US20060002572A1 (en) 2006-01-05
AU2005262870A1 (en) 2006-01-19
US20100250258A1 (en) 2010-09-30
MXPA06015132A (es) 2007-03-26
ATE488911T1 (de) 2010-12-15
EP1771945B1 (en) 2010-11-17
CA2566345A1 (en) 2006-01-19
KR20100061759A (ko) 2010-06-08
HK1097963A1 (en) 2007-07-06
JP2008505586A (ja) 2008-02-21
CA2566345C (en) 2014-06-17
DE602005024812D1 (de) 2010-12-30
KR101112565B1 (ko) 2012-02-15
BRPI0512882B1 (pt) 2018-02-14
CN1973434B (zh) 2012-07-04
AU2005262870B2 (en) 2009-11-19
EP1771945A1 (en) 2007-04-11
CN1973434A (zh) 2007-05-30
US7617109B2 (en) 2009-11-10

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