CO2018004866A2 - Layered encoding for compressed sound field or sound representations - Google Patents

Layered encoding for compressed sound field or sound representations

Info

Publication number
CO2018004866A2
CO2018004866A2 CONC2018/0004866A CO2018004866A CO2018004866A2 CO 2018004866 A2 CO2018004866 A2 CO 2018004866A2 CO 2018004866 A CO2018004866 A CO 2018004866A CO 2018004866 A2 CO2018004866 A2 CO 2018004866A2
Authority
CO
Colombia
Prior art keywords
sound
enhancement
layers
compressed
basic
Prior art date
Application number
CONC2018/0004866A
Other languages
Spanish (es)
Inventor
Sven Kordon
Alexander Krueger
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
Priority claimed from PCT/EP2016/073969 external-priority patent/WO2017060410A1/en
Application filed by Dolby Int Ab filed Critical Dolby Int Ab
Publication of CO2018004866A2 publication Critical patent/CO2018004866A2/en

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
    • G10L19/008—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
    • G10L19/167—Audio streaming, i.e. formatting and decoding of an encoded audio signal representation into a data stream for transmission or storage purposes
    • 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 
    • H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
    • H04S2420/11—Application of ambisonics in stereophonic audio systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Mathematical Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereophonic System (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

El presente documento se refiere a un método de codificación en capas de una representación de sonido comprimido de un sonido o campo de sonido. La representación de sonido comprimido comprende una representación de sonido comprimido básica que comprende una pluralidad de componentes, información lateral básica para la decodificación de la representación de sonido comprimido básica a una representación de sonido reconstruida básica del sonido o campo de sonido, e información lateral de mejoramiento que incluye parámetros para mejorar la representación de sonido reconstruida básica. El método comprende la subdivisión de la pluralidad de componentes en una pluralidad de grupos de componentes, y la asignación de cada uno de la pluralidad de grupos a un respectivo de una pluralidad de capas jerárquicas, el número de grupos correspondientes al número de capas, y la pluralidad de capas incluye una capa base y una o más capas de mejoramiento jerárquicas, la adición de información lateral básica a la capa base, y la determinación de una pluralidad de porciones de información lateral de mejoramiento a partir de la información lateral de mejoramiento, y la asignación de cada una de la pluralidad de porciones de información lateral de mejoramiento a uno respectivo de la pluralidad de capas, donde cada porción de información lateral de mejoramiento incluye parámetros para mejorar una representación de sonido reconstruida que se obtiene de datos incluidos en la respectiva capa y cualquier capa más baja que la respectiva capa. El documento adicionalmente se refiere a un método de decodificación de una representación de sonido comprimido de un sonido o campo de sonido, donde la representación de sonido comprimido es codificada en una pluralidad de capas jerárquicas que incluyen una capa base y una o más capas de mejoramiento jerárquicas, al igual que a un codificador y un decodificador para la codificación en capas de una representación de sonido comprimido.This document relates to a method of layered encoding a compressed sound representation of a sound or sound field. The compressed sound representation comprises a basic compressed sound representation comprising a plurality of components, basic side information for decoding the basic compressed sound representation to a basic reconstructed sound representation of the sound or sound field, and side information of enhancement that includes parameters to enhance the basic reconstructed sound representation. The method comprises subdivision of the plurality of components into a plurality of groups of components, and assigning each of the plurality of groups to a respective one of a plurality of hierarchical layers, the number of groups corresponding to the number of layers, and the plurality of layers includes a base layer and one or more hierarchical enhancement layers, adding basic lateral information to the base layer, and determining a plurality of portions of lateral enhancement information from the lateral enhancement information, and assigning each of the plurality of enhancement side information portions to a respective one of the plurality of layers, wherein each enhancement side information portion includes parameters for enhancing a reconstructed sound representation that is obtained from data included in the respective layer and any layer lower than the respective layer. The document further refers to a method of decoding a compressed sound representation of a sound or sound field, where the compressed sound representation is encoded in a plurality of hierarchical layers including a base layer and one or more enhancement layers. hierarchical, as well as an encoder and decoder for layered encoding of a compressed sound representation.

CONC2018/0004866A 2015-10-08 2018-05-08 Layered encoding for compressed sound field or sound representations CO2018004866A2 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
EP15306589 2015-10-08
EP15306653 2015-10-15
US201662361461P 2016-07-12 2016-07-12
US201662361416P 2016-07-12 2016-07-12
PCT/EP2016/073969 WO2017060410A1 (en) 2015-10-08 2016-10-07 Layered coding for compressed sound or sound field representations

Publications (1)

Publication Number Publication Date
CO2018004866A2 true CO2018004866A2 (en) 2018-05-21

Family

ID=71451027

Family Applications (1)

Application Number Title Priority Date Filing Date
CONC2018/0004866A CO2018004866A2 (en) 2015-10-08 2018-05-08 Layered encoding for compressed sound field or sound representations

Country Status (9)

Country Link
JP (1) JP7122359B2 (en)
CO (1) CO2018004866A2 (en)
HK (1) HK1249800A1 (en)
IL (1) IL281195B (en)
PH (1) PH12021551044A1 (en)
SG (1) SG10202002011QA (en)
TW (1) TWI829956B (en)
UA (1) UA123399C2 (en)
ZA (1) ZA201802533B (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9489955B2 (en) * 2014-01-30 2016-11-08 Qualcomm Incorporated Indicating frame parameter reusability for coding vectors
US9818413B2 (en) * 2014-03-21 2017-11-14 Dolby Laboratories Licensing Corporation Method for compressing a higher order ambisonics signal, method for decompressing (HOA) a compressed HOA signal, apparatus for compressing a HOA signal, and apparatus for decompressing a compressed HOA signal

Also Published As

Publication number Publication date
ZA201802533B (en) 2020-08-26
JP7122359B2 (en) 2022-08-19
HK1249800A1 (en) 2018-11-09
TWI829956B (en) 2024-01-21
SG10202002011QA (en) 2020-05-28
TW202123219A (en) 2021-06-16
IL281195B (en) 2022-07-01
PH12021551044A1 (en) 2021-11-29
IL281195A (en) 2021-04-29
UA123399C2 (en) 2021-03-31
JP2021036341A (en) 2021-03-04

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