BRPI0919880A2 - proteção de limitação de sinal que utiliza metadados de ganho de áudio preexistentes - Google Patents

proteção de limitação de sinal que utiliza metadados de ganho de áudio preexistentes

Info

Publication number
BRPI0919880A2
BRPI0919880A2 BRPI0919880A BRPI0919880A BRPI0919880A2 BR PI0919880 A2 BRPI0919880 A2 BR PI0919880A2 BR PI0919880 A BRPI0919880 A BR PI0919880A BR PI0919880 A BRPI0919880 A BR PI0919880A BR PI0919880 A2 BRPI0919880 A2 BR PI0919880A2
Authority
BR
Brazil
Prior art keywords
existing audio
limitation protection
audio gain
utilizes pre
gain metadata
Prior art date
Application number
BRPI0919880A
Other languages
English (en)
Inventor
Alexander Groeschel
Wolfgang A Schildbach
Original Assignee
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 Int Ab filed Critical Dolby Int Ab
Publication of BRPI0919880A2 publication Critical patent/BRPI0919880A2/pt
Publication of BRPI0919880B1 publication Critical patent/BRPI0919880B1/pt

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
    • G10L19/04—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
    • G10L19/173—Transcoding, i.e. converting between two coded representations avoiding cascaded coding-decoding
    • 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
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing

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)
  • Mathematical Physics (AREA)
  • Stereophonic System (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
BRPI0919880-6A 2008-10-29 2009-10-26 Método e aparelho para prover proteção contra o ceifamento de sinal de um sinal de áudio derivado de dados de áudio digital e transcodificador BRPI0919880B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10943308P 2008-10-29 2008-10-29
US61/109,433 2008-10-29
PCT/US2009/062004 WO2010053728A1 (en) 2008-10-29 2009-10-26 Signal clipping protection using pre-existing audio gain metadata

Publications (2)

Publication Number Publication Date
BRPI0919880A2 true BRPI0919880A2 (pt) 2015-12-15
BRPI0919880B1 BRPI0919880B1 (pt) 2020-03-03

Family

ID=41508867

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0919880-6A BRPI0919880B1 (pt) 2008-10-29 2009-10-26 Método e aparelho para prover proteção contra o ceifamento de sinal de um sinal de áudio derivado de dados de áudio digital e transcodificador

Country Status (9)

Country Link
US (1) US8892450B2 (pt)
EP (3) EP2353161B1 (pt)
JP (1) JP5603339B2 (pt)
CN (1) CN102203854B (pt)
BR (1) BRPI0919880B1 (pt)
ES (1) ES2963744T3 (pt)
RU (1) RU2468451C1 (pt)
TW (1) TWI416505B (pt)
WO (1) WO2010053728A1 (pt)

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Also Published As

Publication number Publication date
ES2963744T3 (es) 2024-04-01
CN102203854B (zh) 2013-01-02
JP5603339B2 (ja) 2014-10-08
EP2353161A1 (en) 2011-08-10
EP4293665A2 (en) 2023-12-20
EP4293665A3 (en) 2024-01-10
US20110208528A1 (en) 2011-08-25
EP2353161B1 (en) 2017-05-24
EP3217395A1 (en) 2017-09-13
CN102203854A (zh) 2011-09-28
BRPI0919880B1 (pt) 2020-03-03
TWI416505B (zh) 2013-11-21
TW201042637A (en) 2010-12-01
EP3217395B1 (en) 2023-10-11
RU2468451C1 (ru) 2012-11-27
JP2012507059A (ja) 2012-03-22
WO2010053728A1 (en) 2010-05-14
US8892450B2 (en) 2014-11-18

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Legal Events

Date Code Title Description
B15K Others concerning applications: alteration of classification

Ipc: G10L 19/16 (2013.01), G10L 19/008 (2013.01)

B06F Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]
B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 03/03/2020, OBSERVADAS AS CONDICOES LEGAIS.

B25G Requested change of headquarter approved

Owner name: DOLBY INTERNATIONAL AB (IE)