Classifications

• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04S—STEREOPHONIC SYSTEMS 
  • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
  • H04S3/02—Systems employing more than two channels, e.g. quadraphonic of the matrix type, i.e. in which input signals are combined algebraically, e.g. after having been phase shifted with respect to each other
• • 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
  • G10L19/02—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
  • G10L19/032—Quantisation or dequantisation of spectral components
• • 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
  • G10L19/16—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
  • G10L19/04—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
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04S—STEREOPHONIC SYSTEMS 
  • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04S—STEREOPHONIC SYSTEMS 
  • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
  • H04S3/008—Systems employing more than two channels, e.g. quadraphonic in which the audio signals are in digital form, i.e. employing more than two discrete digital channels
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04S—STEREOPHONIC SYSTEMS 
  • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
  • H04S2400/03—Aspects of down-mixing multi-channel audio to configurations with lower numbers of playback channels, e.g. 7.1 -> 5.1
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04S—STEREOPHONIC SYSTEMS 
  • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
  • H04S2400/11—Positioning of individual sound objects, e.g. moving airplane, within a sound field
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04S—STEREOPHONIC SYSTEMS 
  • H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
  • H04S2420/03—Application of parametric coding in stereophonic audio systems

Landscapes

• Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• Acoustics & Sound (AREA)
• Signal Processing (AREA)
• Multimedia (AREA)
• Human Computer Interaction (AREA)
• Audiology, Speech & Language Pathology (AREA)
• Health & Medical Sciences (AREA)
• Computational Linguistics (AREA)
• Mathematical Physics (AREA)
• Spectroscopy & Molecular Physics (AREA)
• Mathematical Optimization (AREA)
• Mathematical Analysis (AREA)
• Theoretical Computer Science (AREA)
• Pure & Applied Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Algebra (AREA)
• Stereophonic System (AREA)
• Compression, Expansion, Code Conversion, And Decoders (AREA)
• Complex Calculations (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=48832794

Family Applications (1)

Country Status (19)

Families Citing this family (14)

Family Cites Families (50)

• 2013
  • 2013-10-18 EP EP20130189339 patent/EP2830333A1/en not_active Withdrawn
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• 2014
  • 2014-07-17 ES ES14741278T patent/ES2725427T3/en active Active
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  • 2014-07-17 JP JP2016528442A patent/JP6434013B2/en active Active
  • 2014-07-17 BR BR112016001245-3A patent/BR112016001245B1/en active IP Right Grant
  • 2014-07-17 CN CN201480052100.7A patent/CN105580390B/en active Active
  • 2014-07-17 AU AU2014295206A patent/AU2014295206B2/en active Active
  • 2014-07-17 PT PT14741278T patent/PT3025515T/en unknown
  • 2014-07-17 SG SG11201600491SA patent/SG11201600491SA/en unknown
  • 2014-07-17 ES ES18178664T patent/ES2925038T3/en active Active
  • 2014-07-17 MY MYPI2016000117A patent/MY178904A/en unknown
  • 2014-07-17 RU RU2016105468A patent/RU2666640C2/en active
  • 2014-07-17 MX MX2016000915A patent/MX362548B/en active IP Right Grant
  • 2014-07-17 EP EP14741278.7A patent/EP3025515B1/en active Active
  • 2014-07-17 KR KR1020167004501A patent/KR101893410B1/en active IP Right Grant
  • 2014-07-17 CA CA2919077A patent/CA2919077C/en active Active
  • 2014-07-17 ES ES18178666T patent/ES2924174T3/en active Active
  • 2014-07-17 EP EP18178664.1A patent/EP3419314B1/en active Active
  • 2014-07-17 PL PL14741278T patent/PL3025515T3/en unknown
  • 2014-07-17 WO PCT/EP2014/065395 patent/WO2015011014A1/en active Application Filing
  • 2014-07-21 TW TW103124969A patent/TWI587285B/en active
  • 2014-07-22 AR ARP140102719A patent/AR097015A1/en active IP Right Grant
  • 2014-07-22 AR ARP140102718A patent/AR097014A1/en active IP Right Grant
• 2016
  • 2016-01-21 MX MX2018012892A patent/MX2018012892A/en unknown
  • 2016-01-21 MX MX2018012891A patent/MX2018012891A/en unknown
  • 2016-01-22 US US15/004,738 patent/US11115770B2/en active Active
  • 2016-02-16 ZA ZA2016/01047A patent/ZA201601047B/en unknown
  • 2016-04-25 US US15/138,168 patent/US11381925B2/en active Active
  • 2016-04-25 US US15/138,160 patent/US11240619B2/en active Active
  • 2016-04-25 US US15/138,176 patent/US10448185B2/en active Active
• 2017
  • 2017-10-20 AU AU2017248532A patent/AU2017248532B2/en active Active
• 2018
  • 2018-07-23 JP JP2018137637A patent/JP6687683B2/en active Active
  • 2018-12-20 US US16/228,257 patent/US11252523B2/en active Active
• 2020
  • 2020-04-02 JP JP2020066343A patent/JP7000488B2/en active Active
• 2021
  • 2021-08-27 US US17/459,904 patent/US20220167102A1/en active Pending

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