BR112016029978A2 - método e aparelho para determinar para a compressão de uma representação de quadro de dados hoa um número inteiro mais baixo de bits requeridos para representar valores de ganho não diferenciais - Google Patents

método e aparelho para determinar para a compressão de uma representação de quadro de dados hoa um número inteiro mais baixo de bits requeridos para representar valores de ganho não diferenciais

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Publication number
BR112016029978A2
BR112016029978A2 BR112016029978A BR112016029978A BR112016029978A2 BR 112016029978 A2 BR112016029978 A2 BR 112016029978A2 BR 112016029978 A BR112016029978 A BR 112016029978A BR 112016029978 A BR112016029978 A BR 112016029978A BR 112016029978 A2 BR112016029978 A2 BR 112016029978A2
Authority
BR
Brazil
Prior art keywords
data frame
gain values
bits
compression
determining
Prior art date
Application number
BR112016029978A
Other languages
English (en)
Other versions
BR112016029978B1 (pt
Inventor
krueger Alexander
Kordon Sven
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=51178839&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BR112016029978(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Dolby Int Ab filed Critical Dolby Int Ab
Priority to BR122023009299-6A priority Critical patent/BR122023009299B1/pt
Priority to BR122022022357-5A priority patent/BR122022022357B1/pt
Publication of BR112016029978A2 publication Critical patent/BR112016029978A2/pt
Publication of BR112016029978B1 publication Critical patent/BR112016029978B1/pt

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Classifications

    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/008Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/02Speech 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
    • G10L19/032Quantisation or dequantisation of spectral components
    • G10L19/038Vector quantisation, e.g. TwinVQ audio
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/04Speech 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
    • G10L19/08Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04SSTEREOPHONIC SYSTEMS 
    • H04S7/00Indicating arrangements; Control arrangements, e.g. balance control
    • H04S7/30Control circuits for electronic adaptation of the sound field
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04SSTEREOPHONIC SYSTEMS 
    • H04S2400/00Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/11Positioning of individual sound objects, e.g. moving airplane, within a sound field
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04SSTEREOPHONIC SYSTEMS 
    • H04S2420/00Techniques used stereophonic systems covered by H04S but not provided for in its groups
    • H04S2420/11Application of ambisonics in stereophonic audio systems

Abstract

quando comprimindo uma representação de quadro de dados hoa, um controle de ganho (15, 151) é aplicado para cada sinal de canal antes deste ser perceptualmente codificado (16). os valores de ganho são transferidos, em um modo diferencial, como informação lateral. no entanto, para iniciar a decodificação de tais valores de ganho absolutos de representação de quadro de dados hoa comprimidos em fluxo são requeridos, os quais devem ser codificados com um número mínimo de bits. para determinar o referido número inteiro mais baixo (ße) de bits, a representação de quadro de dados hoa (c(k)) é renderizada no domínio espacial para sinais de alto-falante virtual estando em uma esfera unitária, seguido por normalização da representação de quadro de dados hoa (c(k)). então, o número inteiro mais baixo de bits é definido para: (aa).
BR112016029978-7A 2014-06-27 2015-06-22 Método para determinar para a compressão de uma representação de quadro de dados hoa um número inteiro mais baixo de bits requeridos para representar valores de ganho não diferenciais BR112016029978B1 (pt)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BR122023009299-6A BR122023009299B1 (pt) 2014-06-27 2015-06-22 Método e aparelho para determinar para a compressão de uma representação de quadro de dados hoa um número inteiro mais baixo de bits requeridos para representar valores de ganho não diferenciais
BR122022022357-5A BR122022022357B1 (pt) 2014-06-27 2015-06-22 Método e aparelho para determinar para a compressão de uma representação de quadro de dados hoa

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP14306023.4A EP2960903A1 (en) 2014-06-27 2014-06-27 Method and apparatus for determining for the compression of an HOA data frame representation a lowest integer number of bits required for representing non-differential gain values
EP14306023.4 2014-06-27
PCT/EP2015/063912 WO2015197512A1 (en) 2014-06-27 2015-06-22 Method and apparatus for determining for the compression of an hoa data frame representation a lowest integer number of bits required for representing non-differential gain values

Publications (2)

Publication Number Publication Date
BR112016029978A2 true BR112016029978A2 (pt) 2017-08-22
BR112016029978B1 BR112016029978B1 (pt) 2023-08-01

Family

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Also Published As

Publication number Publication date
TWI689916B (zh) 2020-04-01
US20190214027A1 (en) 2019-07-11
JP6567571B2 (ja) 2019-08-28
KR102428370B1 (ko) 2022-08-02
CN106471580A (zh) 2017-03-01
CN112908348A (zh) 2021-06-04
US11875803B2 (en) 2024-01-16
US20220270620A1 (en) 2022-08-25
JP2017523456A (ja) 2017-08-17
BR122022022357B1 (pt) 2024-01-16
RU2725602C9 (ru) 2020-08-28
US20210193156A1 (en) 2021-06-24
TW202238566A (zh) 2022-10-01
KR102568636B1 (ko) 2023-08-22
US10872612B2 (en) 2020-12-22
TW201603000A (zh) 2016-01-16
KR20170023017A (ko) 2017-03-02
CN112908348B (zh) 2022-07-15
JP6869296B2 (ja) 2021-05-12
CN112951254A (zh) 2021-06-11
KR20230124763A (ko) 2023-08-25
US11322165B2 (en) 2022-05-03
CN112908349A (zh) 2021-06-04
WO2015197512A1 (en) 2015-12-30
US20170133020A1 (en) 2017-05-11
TWI820530B (zh) 2023-11-01
EP2960903A1 (en) 2015-12-30
CN106471580B (zh) 2021-03-05
RU2725602C2 (ru) 2020-07-02
BR122018012705A8 (pt) 2022-09-13
KR20220110615A (ko) 2022-08-08
RU2020115874A (ru) 2020-06-18
EP3809409A1 (en) 2021-04-21
EP3161820A1 (en) 2017-05-03
RU2016151121A (ru) 2018-06-26
TW202105364A (zh) 2021-02-01
JP2021103337A (ja) 2021-07-15
BR122018012705A2 (pt) 2017-08-22
EP3161820B1 (en) 2020-11-18
BR122023009299B1 (pt) 2023-12-26
JP2019185065A (ja) 2019-10-24
RU2016151121A3 (pt) 2019-02-07
TWI749471B (zh) 2021-12-11
US10236003B2 (en) 2019-03-19

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B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B154 Notification of filing of divisional application [chapter 15.50 patent gazette]

Free format text: O PEDIDO FOI DIVIDIDO NO BR122023009299-6 PROTOCOLO 870230040554 EM 15/05/2023 16:36.

B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 22/06/2015, OBSERVADAS AS CONDICOES LEGAIS