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MX2022004397A - Decodificador y codificador de audio. - Google Patents

Decodificador y codificador de audio.

Info

Publication number
MX2022004397A
MX2022004397A MX2022004397A MX2022004397A MX2022004397A MX 2022004397 A MX2022004397 A MX 2022004397A MX 2022004397 A MX2022004397 A MX 2022004397A MX 2022004397 A MX2022004397 A MX 2022004397A MX 2022004397 A MX2022004397 A MX 2022004397A
Authority
MX
Mexico
Prior art keywords
decoder
audio encoder
channel audio
audio signal
decoding
Prior art date
Application number
MX2022004397A
Other languages
English (en)
Inventor
Harald Mundt
Heiko Purnhagen
Kristofer Kjoerllng
Karl Jonas Roeden
Leif Sehlstrom
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 MX2022004397A publication Critical patent/MX2022004397A/es

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
    • G10L19/18—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
    • G10L19/008—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
    • G10L19/0212—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 orthogonal transformation
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/18—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being spectral information of each sub-band
    • 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 
    • 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)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computational Linguistics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Health & Medical Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereophonic System (AREA)
  • Error Detection And Correction (AREA)

Abstract

La presente divulgación proporciona métodos, dispositivos y productos de programas informáticos para codificar y decodificar una señal de audio multicanal a base de una señal de entrada. De acuerdo a la divulgación, se utiliza un enfoque híbrido de usar tanto la codificación estérea paramétrica como la representación discreta de la señal de audio multicanal procesada que puede mejorar la calidad del audio codificada y decodificada para ciertas velocidades de bits.
MX2022004397A 2013-04-05 2015-08-27 Decodificador y codificador de audio. MX2022004397A (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US201361808680P 2013-04-05 2013-04-05

Publications (1)

Publication Number Publication Date
MX2022004397A true MX2022004397A (es) 2022-06-16

Family

ID=50439393

Family Applications (4)

Application Number Title Priority Date Filing Date
MX2017006575A MX369023B (es) 2013-04-05 2014-04-04 Decodificador y codificador de audio.
MX2015011145A MX347936B (es) 2013-04-05 2014-04-04 Decodificador y codificador de audio.
MX2019012711A MX391551B (es) 2013-04-05 2014-04-04 Decodificador y codificador de audio
MX2022004397A MX2022004397A (es) 2013-04-05 2015-08-27 Decodificador y codificador de audio.

Family Applications Before (3)

Application Number Title Priority Date Filing Date
MX2017006575A MX369023B (es) 2013-04-05 2014-04-04 Decodificador y codificador de audio.
MX2015011145A MX347936B (es) 2013-04-05 2014-04-04 Decodificador y codificador de audio.
MX2019012711A MX391551B (es) 2013-04-05 2014-04-04 Decodificador y codificador de audio

Country Status (20)

Country Link
US (7) US9489957B2 (es)
EP (3) EP3627506B1 (es)
JP (7) JP6031201B2 (es)
KR (7) KR102201951B1 (es)
CN (2) CN105308680B (es)
AU (1) AU2014247001B2 (es)
BR (7) BR122020017065B1 (es)
CA (1) CA2900743C (es)
DK (1) DK2954519T3 (es)
ES (2) ES2619117T3 (es)
HU (1) HUE031660T2 (es)
IL (1) IL240117A0 (es)
MX (4) MX369023B (es)
MY (4) MY183360A (es)
PL (1) PL2954519T3 (es)
RU (2) RU2641265C1 (es)
SG (1) SG11201506139YA (es)
TW (1) TWI546799B (es)
UA (1) UA113117C2 (es)
WO (1) WO2014161992A1 (es)

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BR122022004787A2 (es) 2017-07-18
MY183360A (en) 2021-02-18
EP3171361B1 (en) 2019-07-24
KR20220044609A (ko) 2022-04-08
MY196084A (en) 2023-03-14
CN109410966A (zh) 2019-03-01
DK2954519T3 (en) 2017-03-20
BR112015019711B1 (pt) 2022-04-26
BR122017006819B1 (pt) 2022-07-26
BR122020017065B1 (pt) 2022-03-22
CA2900743A1 (en) 2014-10-09
KR20170087529A (ko) 2017-07-28
UA113117C2 (xx) 2016-12-12
JP2017078858A (ja) 2017-04-27
US9489957B2 (en) 2016-11-08
KR20240038819A (ko) 2024-03-25
KR20200033988A (ko) 2020-03-30
MX369023B (es) 2019-10-25
JP2019191596A (ja) 2019-10-31
AU2014247001A1 (en) 2015-08-13
CN105308680A (zh) 2016-02-03
ES2619117T3 (es) 2017-06-23
BR122022004786A2 (es) 2017-07-18
US11114107B2 (en) 2021-09-07
JP6031201B2 (ja) 2016-11-24
US20160343383A1 (en) 2016-11-24
BR122022004787B1 (pt) 2022-10-18
IL240117A0 (en) 2015-09-24
EP3171361A1 (en) 2017-05-24
CN109410966B (zh) 2023-08-29
HUE031660T2 (en) 2017-07-28
US20240153517A1 (en) 2024-05-09
JP2024038139A (ja) 2024-03-19
RU2602988C1 (ru) 2016-11-20
BR122022004786B1 (pt) 2022-10-04
US20200098381A1 (en) 2020-03-26
EP2954519B1 (en) 2017-02-01
BR122022004784B8 (pt) 2022-09-13
MY185848A (en) 2021-06-14
KR20200096328A (ko) 2020-08-11
MX2015011145A (es) 2016-01-12
PL2954519T3 (pl) 2017-06-30
JP7778768B2 (ja) 2025-12-02
JP2022068353A (ja) 2022-05-09
KR102380370B1 (ko) 2022-04-01
US12293768B2 (en) 2025-05-06
RU2641265C1 (ru) 2018-01-16
SG11201506139YA (en) 2015-09-29
TWI546799B (zh) 2016-08-21
MX347936B (es) 2017-05-19
HK1213080A1 (en) 2016-06-24
JP6377110B2 (ja) 2018-08-22
EP3627506A1 (en) 2020-03-25
MX391551B (es) 2025-03-21
KR20150113976A (ko) 2015-10-08
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