BR112015000247B1 - Decodificador, método de decodificação, codificador, método de codificação, e sistema de codificação e decodificação. - Google Patents

Decodificador, método de decodificação, codificador, método de codificação, e sistema de codificação e decodificação. Download PDF

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Publication number
BR112015000247B1
BR112015000247B1 BR112015000247-1A BR112015000247A BR112015000247B1 BR 112015000247 B1 BR112015000247 B1 BR 112015000247B1 BR 112015000247 A BR112015000247 A BR 112015000247A BR 112015000247 B1 BR112015000247 B1 BR 112015000247B1
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Brazil
Prior art keywords
frequency
downmix
time
audio
time slices
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BR112015000247-1A
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English (en)
Portuguese (pt)
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BR112015000247A2 (pt
Inventor
Arnoldus Werner Johannes Oomen
Jeroen Gerardus Henricus Koppens
Erik Gosuinus Petrus Schuijers
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Koninklijke Philips N.V.
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Publication of BR112015000247A2 publication Critical patent/BR112015000247A2/pt
Publication of BR112015000247B1 publication Critical patent/BR112015000247B1/pt

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    • 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
    • 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
    • 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
    • G10L19/04—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
    • G10L19/20—Vocoders using multiple modes using sound class specific coding, hybrid encoders or object based coding
    • 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
    • G10L19/265—Pre-filtering, e.g. high frequency emphasis prior to encoding

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Mathematical Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereophonic System (AREA)
BR112015000247-1A 2012-07-09 2013-07-09 Decodificador, método de decodificação, codificador, método de codificação, e sistema de codificação e decodificação. BR112015000247B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201261669197P 2012-07-09 2012-07-09
US61/669,197 2012-07-09
PCT/IB2013/055628 WO2014009878A2 (en) 2012-07-09 2013-07-09 Encoding and decoding of audio signals

Publications (2)

Publication Number Publication Date
BR112015000247A2 BR112015000247A2 (pt) 2017-06-27
BR112015000247B1 true BR112015000247B1 (pt) 2021-08-03

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BR112015000247-1A BR112015000247B1 (pt) 2012-07-09 2013-07-09 Decodificador, método de decodificação, codificador, método de codificação, e sistema de codificação e decodificação.

Country Status (9)

Country Link
US (1) US9478228B2 (https=)
EP (2) EP3748632A1 (https=)
JP (1) JP6231093B2 (https=)
CN (1) CN104428835B (https=)
BR (1) BR112015000247B1 (https=)
MX (1) MX342150B (https=)
RU (1) RU2643644C2 (https=)
WO (1) WO2014009878A2 (https=)
ZA (1) ZA201500888B (https=)

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Also Published As

Publication number Publication date
MX342150B (es) 2016-09-15
RU2643644C2 (ru) 2018-02-02
WO2014009878A2 (en) 2014-01-16
CN104428835A (zh) 2015-03-18
US9478228B2 (en) 2016-10-25
WO2014009878A3 (en) 2014-03-13
ZA201500888B (en) 2017-01-25
US20150142453A1 (en) 2015-05-21
MX2015000113A (es) 2015-08-10
EP3748632A1 (en) 2020-12-09
RU2015104074A (ru) 2016-08-27
EP2870603B1 (en) 2020-09-30
EP2870603A2 (en) 2015-05-13
CN104428835B (zh) 2017-10-31
JP6231093B2 (ja) 2017-11-15
JP2015527609A (ja) 2015-09-17
BR112015000247A2 (pt) 2017-06-27

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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]

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