MX2022011447A - Metodo y aparato para decodificar una representacion de campo sonoro de audio ambisonics para la reproduccion de audio utilizando configuraciones 2d. - Google Patents

Metodo y aparato para decodificar una representacion de campo sonoro de audio ambisonics para la reproduccion de audio utilizando configuraciones 2d.

Info

Publication number
MX2022011447A
MX2022011447A MX2022011447A MX2022011447A MX2022011447A MX 2022011447 A MX2022011447 A MX 2022011447A MX 2022011447 A MX2022011447 A MX 2022011447A MX 2022011447 A MX2022011447 A MX 2022011447A MX 2022011447 A MX2022011447 A MX 2022011447A
Authority
MX
Mexico
Prior art keywords
decoding
loudspeaker
positions
setups
decode matrix
Prior art date
Application number
MX2022011447A
Other languages
English (en)
Inventor
Johannes Boehm
Florian Keiler
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 MX2022011447A publication Critical patent/MX2022011447A/es

Links

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
    • H04S7/30—Control circuits for electronic adaptation of the sound field
    • H04S7/308—Electronic adaptation dependent on speaker or headphone connection
    • 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
    • H04S2420/07—Synergistic effects of band splitting and sub-band processing
    • 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

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Algebra (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Stereophonic System (AREA)

Abstract

La presente invención se refiere a escenas sonoras en 3D, las cuales pueden sintetizarse o capturarse como un campo sonoro natural. Para la decodificación, se requiere una matriz de decodificación que sea específica para una determinada configuración de altavoz y se genera utilizando las posiciones de altavoz conocidas. Sin embargo, algunas direcciones de la fuente se atenúan para las configuraciones de altavoz en 2D, como por ejemplo, 5.1 surround. Un método mejorado para decodificar una señal de audio codificada en un formato de campo sonoro para L altavoces en posiciones conocidas comprende los pasos para añadir (10) una posición de al menos un altavoz virtual a las posiciones de los L altavoces, generar (11) una matriz de decodificación 3D (D'), en la que se utilizan las posiciones (Fórmula I) de los L altavoces y al menos una posición virtual (Fórmula II), mezclar descendentemente (12) la matriz de decodificación 3D (D'), y decodificar (14) la señal de audio codificada (i14) utilizando la matriz de decodificación 3D (D') ajustada descendentemente (Fórmula III). Como resultado, se obtiene una pluralidad de señales de altavoces decodificadas (q14).
MX2022011447A 2013-10-23 2016-04-21 Metodo y aparato para decodificar una representacion de campo sonoro de audio ambisonics para la reproduccion de audio utilizando configuraciones 2d. MX2022011447A (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20130290255 EP2866475A1 (en) 2013-10-23 2013-10-23 Method for and apparatus for decoding an audio soundfield representation for audio playback using 2D setups

Publications (1)

Publication Number Publication Date
MX2022011447A true MX2022011447A (es) 2023-02-23

Family

ID=49626882

Family Applications (5)

Application Number Title Priority Date Filing Date
MX2016005191A MX359846B (es) 2013-10-23 2014-10-20 Método y aparato para decodificar una representación de campo sonoro de audio ambisonics para la reproducción de audio utilizando configuraciones 2d.
MX2018012489A MX2018012489A (es) 2013-10-23 2016-04-21 Metodo y aparato para decodificar una representacion de campo sonoro de audio ambisonics para la reproduccion de audio utilizando configuraciones 2d.
MX2022011448A MX2022011448A (es) 2013-10-23 2016-04-21 Metodo y aparato para decodificar una representacion de campo sonoro de audio ambisonics para la reproduccion de audio utilizando configuraciones 2d.
MX2022011449A MX2022011449A (es) 2013-10-23 2016-04-21 Metodo y aparato para decodificar una representacion de campo sonoro de audio ambisonics para la reproduccion de audio utilizando configuraciones 2d.
MX2022011447A MX2022011447A (es) 2013-10-23 2016-04-21 Metodo y aparato para decodificar una representacion de campo sonoro de audio ambisonics para la reproduccion de audio utilizando configuraciones 2d.

Family Applications Before (4)

Application Number Title Priority Date Filing Date
MX2016005191A MX359846B (es) 2013-10-23 2014-10-20 Método y aparato para decodificar una representación de campo sonoro de audio ambisonics para la reproducción de audio utilizando configuraciones 2d.
MX2018012489A MX2018012489A (es) 2013-10-23 2016-04-21 Metodo y aparato para decodificar una representacion de campo sonoro de audio ambisonics para la reproduccion de audio utilizando configuraciones 2d.
MX2022011448A MX2022011448A (es) 2013-10-23 2016-04-21 Metodo y aparato para decodificar una representacion de campo sonoro de audio ambisonics para la reproduccion de audio utilizando configuraciones 2d.
MX2022011449A MX2022011449A (es) 2013-10-23 2016-04-21 Metodo y aparato para decodificar una representacion de campo sonoro de audio ambisonics para la reproduccion de audio utilizando configuraciones 2d.

Country Status (16)

Country Link
US (8) US9813834B2 (es)
EP (5) EP2866475A1 (es)
JP (6) JP6463749B2 (es)
KR (4) KR102629324B1 (es)
CN (6) CN108632737B (es)
AU (6) AU2014339080B2 (es)
BR (2) BR112016009209B1 (es)
CA (5) CA3147196C (es)
ES (1) ES2637922T3 (es)
HK (4) HK1221105A1 (es)
MX (5) MX359846B (es)
MY (2) MY191340A (es)
RU (2) RU2679230C2 (es)
TW (5) TWI651973B (es)
WO (1) WO2015059081A1 (es)
ZA (5) ZA201801738B (es)

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CN108632737A (zh) 2018-10-09
US20180077510A1 (en) 2018-03-15
CN108777837A (zh) 2018-11-09
US11451918B2 (en) 2022-09-20
US10986455B2 (en) 2021-04-20
TW202403730A (zh) 2024-01-16
MX359846B (es) 2018-10-12
JP6660493B2 (ja) 2020-03-11
AU2022291443A1 (en) 2023-02-02
TWI817909B (zh) 2023-10-01
TWI651973B (zh) 2019-02-21
AU2018267665A1 (en) 2018-12-13
RU2679230C2 (ru) 2019-02-06
KR102629324B1 (ko) 2024-01-29
AU2014339080A1 (en) 2016-05-26
CN108777836A (zh) 2018-11-09
AU2022291444B2 (en) 2024-04-18
ES2637922T3 (es) 2017-10-17
CA3147196C (en) 2024-01-09
TW201517643A (zh) 2015-05-01
RU2016119533A (ru) 2017-11-28
CN108632737B (zh) 2020-11-06
CN108777837B (zh) 2021-08-24
JP2016539554A (ja) 2016-12-15
ZA202210670B (en) 2024-01-31
EP3742763A1 (en) 2020-11-25
CA3147189A1 (en) 2015-04-30
RU2766560C2 (ru) 2022-03-15
MY179460A (en) 2020-11-06
EP2866475A1 (en) 2015-04-29
AU2018267665B2 (en) 2020-11-19
KR20240017091A (ko) 2024-02-06
CN105637902A (zh) 2016-06-01
US20160309273A1 (en) 2016-10-20
EP4213508A1 (en) 2023-07-19
US11770667B2 (en) 2023-09-26
AU2021200911A1 (en) 2021-03-04
BR112016009209A8 (pt) 2017-12-05
JP7529371B2 (ja) 2024-08-06
CA3168427A1 (en) 2015-04-30
TW201923752A (zh) 2019-06-16
CN108337624B (zh) 2021-08-24
BR112016009209A2 (es) 2017-08-01
CN105637902B (zh) 2018-06-05
TW202329088A (zh) 2023-07-16
US10694308B2 (en) 2020-06-23
BR112016009209B1 (pt) 2021-11-16
CA3147196A1 (en) 2015-04-30
RU2016119533A3 (es) 2018-07-20
CA3221605A1 (en) 2015-04-30
JP2019068470A (ja) 2019-04-25
CA2924700A1 (en) 2015-04-30
US10158959B2 (en) 2018-12-18
TWI797417B (zh) 2023-04-01
HK1255621A1 (zh) 2019-08-23
AU2022291444A1 (en) 2023-02-02
JP2022008492A (ja) 2022-01-13
ZA202005036B (en) 2022-04-28
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US20200382889A1 (en) 2020-12-03
EP3300391A1 (en) 2018-03-28
JP2024138553A (ja) 2024-10-08
ZA201901243B (en) 2021-05-26
KR20210037747A (ko) 2021-04-06
CN108337624A (zh) 2018-07-27
AU2014339080B2 (en) 2018-08-30
MY191340A (en) 2022-06-17
CA2924700C (en) 2022-06-07
TWI686794B (zh) 2020-03-01
EP3061270A1 (en) 2016-08-31
US20210306785A1 (en) 2021-09-30
US20220417690A1 (en) 2022-12-29
KR102491042B1 (ko) 2023-01-26
EP3742763B1 (en) 2023-03-29
CN108632736A (zh) 2018-10-09
HK1221105A1 (zh) 2017-05-19
HK1252979A1 (zh) 2019-06-06
WO2015059081A1 (en) 2015-04-30
ZA202107269B (en) 2023-09-27
MX2022011448A (es) 2023-03-14
EP3061270B1 (en) 2017-07-12
RU2019100542A (ru) 2019-02-28
US20190349699A1 (en) 2019-11-14
MX2018012489A (es) 2020-11-06
ZA201801738B (en) 2019-07-31
AU2022291445A1 (en) 2023-02-02
JP2023078432A (ja) 2023-06-06
US20220408209A1 (en) 2022-12-22
US9813834B2 (en) 2017-11-07
CA3147189C (en) 2024-04-30
JP2020074643A (ja) 2020-05-14
CN108632736B (zh) 2021-06-01
MX2022011449A (es) 2023-03-08
AU2021200911B2 (en) 2022-12-01
BR122017020302B1 (pt) 2022-07-05
EP3300391B1 (en) 2020-08-05
JP7254137B2 (ja) 2023-04-07
RU2019100542A3 (es) 2021-12-08
TW202022853A (zh) 2020-06-16
KR20230018528A (ko) 2023-02-07
JP6950014B2 (ja) 2021-10-13
CN108777836B (zh) 2021-08-24
MX2016005191A (es) 2016-08-08
HK1257203A1 (zh) 2019-10-18
US11750996B2 (en) 2023-09-05
US20240056755A1 (en) 2024-02-15
KR102235398B1 (ko) 2021-04-02
JP6463749B2 (ja) 2019-02-06
KR20160074501A (ko) 2016-06-28

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