BR122017013717A8 - Método e aparelho para decodificar sinais hoa multiplexados e perceptualmente codificados, e meio de armazenamento não transitório - Google Patents

Método e aparelho para decodificar sinais hoa multiplexados e perceptualmente codificados, e meio de armazenamento não transitório

Info

Publication number
BR122017013717A8
BR122017013717A8 BR122017013717A BR122017013717A BR122017013717A8 BR 122017013717 A8 BR122017013717 A8 BR 122017013717A8 BR 122017013717 A BR122017013717 A BR 122017013717A BR 122017013717 A BR122017013717 A BR 122017013717A BR 122017013717 A8 BR122017013717 A8 BR 122017013717A8
Authority
BR
Brazil
Prior art keywords
vector
coefficient
hoa
signals
domain
Prior art date
Application number
BR122017013717A
Other languages
English (en)
Other versions
BR122017013717B1 (pt
BR122017013717A2 (pt
Inventor
Kordon Sven
krueger Alexander
Original Assignee
Thomson Licensing
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 Thomson Licensing, Dolby Int Ab filed Critical Thomson Licensing
Publication of BR122017013717A2 publication Critical patent/BR122017013717A2/pt
Publication of BR122017013717A8 publication Critical patent/BR122017013717A8/pt
Publication of BR122017013717B1 publication Critical patent/BR122017013717B1/pt

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • 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 
    • 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

Abstract

Há duas representações para Ambissônicos de Ordem Superior (High Order Ambisonics) representados pela sigla HOA: domínio espacial e domínio de coeficiente. A presente invenção gera, a partir de uma representação de domínio de coeficiente, uma representação mista de domínio de coeficiente/espacial, em que o número dos ditos sinais HOA pode ser variável. Um vetor de sinais de domínio de coeficiente é separado em um vetor de sinais de domínio de coeficiente, tendo um número constante de coeficientes HOA, e um vetor de sinais de domínio de coeficiente tendo um número variável de coeficientes HOA. O vetor de coeficientes HOA de número constante é transformado em um vetor de sinal de domínio espacial correspondente. A fim de facilitar a codificação de alta qualidade, sem criar descontinuidades de sinal, o vetor de coeficientes HOA de número variável de sinais de domínio de coeficiente é adaptativamente normalizado e multiplexado com o vetor de sinais de domínio espacial.
BR122017013717-4A 2013-07-11 2014-06-24 Método e aparelho para decodificar sinais hoa multiplexados e perceptualmente codificados, e meio de armazenamento não transitório BR122017013717B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP13305986.5 2013-07-11
EP20130305986 EP2824661A1 (en) 2013-07-11 2013-07-11 Method and Apparatus for generating from a coefficient domain representation of HOA signals a mixed spatial/coefficient domain representation of said HOA signals
PCT/EP2014/063306 WO2015003900A1 (en) 2013-07-11 2014-06-24 Method and apparatus for generating from a coefficient domain representation of hoa signals a mixed spatial/coefficient domain representation of said hoa signals

Publications (3)

Publication Number Publication Date
BR122017013717A2 BR122017013717A2 (pt) 2017-07-25
BR122017013717A8 true BR122017013717A8 (pt) 2017-12-05
BR122017013717B1 BR122017013717B1 (pt) 2022-12-20

Family

ID=48915948

Family Applications (3)

Application Number Title Priority Date Filing Date
BR112016000245-8A BR112016000245B1 (pt) 2013-07-11 2014-06-24 Método e aparelho para gerar, a partir de uma representação de domínio de coeficiente de sinais hoa, uma representação mista de domínio de coeficiente/espacial dos sinais hoa, método e aparelho para decodificar uma representação mista de domínio de coeficiente/espacial de sinais hoa codificados, sinal de aúdio digital e meio de armazenamento não transitório
BR122017013717-4A BR122017013717B1 (pt) 2013-07-11 2014-06-24 Método e aparelho para decodificar sinais hoa multiplexados e perceptualmente codificados, e meio de armazenamento não transitório
BR122020017865-5A BR122020017865B1 (pt) 2013-07-11 2014-06-24 Método e aparelho para decodificar uma representação de ambissônicos de ordem superior (hoa), meio de armazenamento não-transitório e meio de armazenamento legível por computador não-transitório

Family Applications Before (1)

Application Number Title Priority Date Filing Date
BR112016000245-8A BR112016000245B1 (pt) 2013-07-11 2014-06-24 Método e aparelho para gerar, a partir de uma representação de domínio de coeficiente de sinais hoa, uma representação mista de domínio de coeficiente/espacial dos sinais hoa, método e aparelho para decodificar uma representação mista de domínio de coeficiente/espacial de sinais hoa codificados, sinal de aúdio digital e meio de armazenamento não transitório

Family Applications After (1)

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BR122020017865-5A BR122020017865B1 (pt) 2013-07-11 2014-06-24 Método e aparelho para decodificar uma representação de ambissônicos de ordem superior (hoa), meio de armazenamento não-transitório e meio de armazenamento legível por computador não-transitório

Country Status (14)

Country Link
US (7) US9668079B2 (pt)
EP (4) EP2824661A1 (pt)
JP (4) JP6490068B2 (pt)
KR (3) KR102534163B1 (pt)
CN (9) CN117116273A (pt)
AU (4) AU2014289527B2 (pt)
BR (3) BR112016000245B1 (pt)
CA (4) CA3131695C (pt)
MX (1) MX354300B (pt)
MY (2) MY192149A (pt)
RU (1) RU2670797C9 (pt)
TW (5) TWI712034B (pt)
WO (1) WO2015003900A1 (pt)
ZA (6) ZA201508710B (pt)

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RU2670797C2 (ru) 2018-10-25
AU2014289527A1 (en) 2016-02-04
TWI712034B (zh) 2020-12-01
US11540076B2 (en) 2022-12-27
US11863958B2 (en) 2024-01-02
US10841721B2 (en) 2020-11-17
CN116564321A (zh) 2023-08-08
CN110491397A (zh) 2019-11-22
CA3209871A1 (en) 2015-01-15
RU2670797C9 (ru) 2018-11-26
US20190356998A1 (en) 2019-11-21
MY174125A (en) 2020-03-10
CN110459230A (zh) 2019-11-15
CN117275492A (zh) 2023-12-22
KR20210029302A (ko) 2021-03-15
KR102226620B1 (ko) 2021-03-12
BR122017013717B1 (pt) 2022-12-20
US10382876B2 (en) 2019-08-13
TWI633539B (zh) 2018-08-21
ZA201807916B (en) 2020-05-27
US9900721B2 (en) 2018-02-20
ZA202003171B (en) 2022-12-21
CN117116273A (zh) 2023-11-24
US20190215630A9 (en) 2019-07-11
CN110648675A (zh) 2020-01-03
BR122017013717A2 (pt) 2017-07-25
RU2018135962A3 (pt) 2022-03-31
US20210144503A1 (en) 2021-05-13
BR122020017865B1 (pt) 2024-02-27
CA3131690A1 (en) 2015-01-15
EP3020041B1 (en) 2018-12-19
TWI669706B (zh) 2019-08-21
CA3131695C (en) 2023-09-26
MY192149A (en) 2022-08-02
US20220225045A1 (en) 2022-07-14
CA2914904A1 (en) 2015-01-15
EP3020041A1 (en) 2016-05-18
MX354300B (es) 2018-02-23
KR20230070540A (ko) 2023-05-23
AU2020204222A1 (en) 2020-07-16
KR20220051026A (ko) 2022-04-25
JP2016528538A (ja) 2016-09-15
RU2016104403A3 (pt) 2018-05-11
JP7158452B2 (ja) 2022-10-21
JP2021036333A (ja) 2021-03-04
CA3131695A1 (en) 2015-01-15
AU2014289527B2 (en) 2020-04-02
ZA201508710B (en) 2019-07-31
ZA202202891B (en) 2023-11-29
AU2020204222B2 (en) 2022-03-24
ZA202202892B (en) 2023-11-29
CN110648675B (zh) 2023-06-23
CN105378833B (zh) 2019-10-22
TW202013353A (zh) 2020-04-01
US11297455B2 (en) 2022-04-05
US20160150341A1 (en) 2016-05-26
CA2914904C (en) 2021-11-09
JP6792011B2 (ja) 2020-11-25
CN105378833A (zh) 2016-03-02
CA3131690C (en) 2024-01-02
MX2016000003A (es) 2016-03-09
KR20160028442A (ko) 2016-03-11
WO2015003900A1 (en) 2015-01-15
RU2018135962A (ru) 2018-11-14
AU2022204314A1 (en) 2022-07-07
TW201503111A (zh) 2015-01-16
TW202133147A (zh) 2021-09-01
JP2019113858A (ja) 2019-07-11
US20230179936A1 (en) 2023-06-08
BR112016000245B1 (pt) 2022-06-07
TW202326707A (zh) 2023-07-01
US9668079B2 (en) 2017-05-30
ZA201903363B (en) 2020-09-30
RU2016104403A (ru) 2017-08-16
EP2824661A1 (en) 2015-01-14
CN110459230B (zh) 2023-10-20
CN110459231A (zh) 2019-11-15
KR102534163B1 (ko) 2023-05-30
AU2022204314B2 (en) 2024-03-14
JP6490068B2 (ja) 2019-03-27
BR112016000245A8 (pt) 2017-12-05
BR112016000245A2 (pt) 2017-07-25
TWI779381B (zh) 2022-10-01
EP3518235A1 (en) 2019-07-31
JP2022185105A (ja) 2022-12-13
EP4012704A1 (en) 2022-06-15
CN110459231B (zh) 2023-07-14
EP3518235B1 (en) 2021-12-29
KR102386726B1 (ko) 2022-04-15
TW201832226A (zh) 2018-09-01
AU2024201885A1 (en) 2024-04-11
US20180048974A1 (en) 2018-02-15
CN110491397B (zh) 2023-10-27
CN116884421A (zh) 2023-10-13
US20170245084A1 (en) 2017-08-24

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