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1. 发明专利

BRPI0914055B1 renderização binaural de um sinal de áudio multi-canal 未知
公开(公告)号：BRPI0914055B1
公开(公告)日：2021-02-02
申请号：BRPI0914055
申请日：2009-09-25
申请人： DOLBY INT AB , DOLBY SWEDEN AB , FRAUNHOFER GES FORSCHUNG , KONINKLIJKE PHILIPS ELETRONICS N V
发明人： BREEBAART JEROEN , ENGDEGARD JONAS , FALCH CORNELIA , HELLMUTH OLIVER , HILPERT JOHANNES , KOPPENS JEROEN , MUNDT HARALD , PLOGSTIES JAN , TERENTIEV LEONID , VILLEMOES LARS FALCK
IPC分类号： H04S1/00 , H04S3/00
摘要： renderização binaural de um sinal de áudio multi-canal é descrita a renderização binaural de um sinal de áudio multi-canal em um sinal de saída binaural (24). o sinal de áudio multi-canal é composto por um sinal estéreo de downmix (18) no qual uma pluralidade de sinais de áudio é realizada por downmix e informações colaterais compreendendo uma informação de downmix (dmg, dcld) , indicando, para cada sinal de áudio, em que medida o respectivo sinal de áudio foi mixado em um primei-ro e segundo canais do sinal estéreo de downmix (18), respectivamente, bem como a informação no nível do objecto da pluralidade de sinais de áudio e informações de corre-lação cruzada inter-objeto, descrevendo as similaridades entre os pares de sinais de áudio da pluralidade de sinais de áudio. com base em uma primeira prescrição de rende-rização, um sinal preliminar binaural (54) é calculado a partir do primeiro e segundo canais do sinal estéreo de downmix (18) .

2. 发明专利

BRPI0605865B1 codificação hierárquica de áudio multicanais com informações colaterais compactas 未知
公开(公告)号：BRPI0605865B1
公开(公告)日：2019-09-03
申请号：BRPI0605865
申请日：2006-02-01
申请人： CODING TECH AB , DOLBY INT AB , DOLBY SWEDEN AB , FRAUNHOFER GES FORSCHUNG , KONINL PHILIPS ELECTRONICS NV
发明人： BREEBAART JEROEN , ENGDEGARD JONAS , HERRE JUERGEN , HOELZER ANDREAS , KJOERLING KRISTOFER , OOMEN WERNER , PURNHAGEN HEIKO , ROEDEN JONAS , SCHUIJERS ERIK , VILLEMOES LARS
IPC分类号： H04S3/00 , G10L19/008
摘要： codificação hierárquica de àudio multicanais com informações colaterais compactas. uma representação paramétrica de um sinal de áudio multicanais descreve bem as propriedades espaciais do sinal de áudio com informações colaterais compactas quando as informações de coerência, que descrevem a coerência entre um primeiro e um segundo canais, são obtidas dentro de um processo de codificação hierárquica somente para pares de canais que incluem um primeiro canal tendo somente informações de um lado esquerdo em relação à uma posição de audição e incluindo um segundo canal tendo somente informações de um lado direito em relação à uma posição de audição. como dentro do processo hierárquico os canais de áudio múltiplo do sinal de áudio passam por downmix iterativamente para canais monofônicos, é possível escolher os parâmetros relevantes de uma etapa de codificação envolvendo somente os pares de canais que transportam as informações necessárias para descrever as propriedades espaciais do sinal de áudio multicanais.

3. 发明专利

BRPI0715312B1 aparelhagem e método para transformação de parâmetros multicanais 未知
公开(公告)号：BRPI0715312B1
公开(公告)日：2021-05-04
申请号：BRPI0715312
申请日：2007-10-05
申请人： DOLBY INT AB , DOLBY SWEDEN AB , FRAUNHOFER GES FORSCHUNG , KONINL PHILIPS ELECTRONICS NV
发明人： PURNHAGEN HEIKO , BREEBAART JEROEN , ENGDEGARD JONAS , HERRE JÜRGEN , HILPERT JOHANNES , HÕLZER ANDREAS , KJÕRLING KRISTOFER , LINZMEIER KARSTEN , OOMEN WEMER , SPERSCHNEIDER RALPH , VILLEMOES LARS
IPC分类号： G10L19/008 , G10L19/16
摘要： aparelhagem e método para transformação de parâmetros multicanais. um transformador de parâmetros multicanais gera parâmetros de nível que indica uma relação de energia entre um primeiro e segundo canais de áudio de um sinal de áudio multicanais associado a uma configuração de alto-falantes multicanais. o parâmetro de nível é gerado com base nos parâmetros objeto para uma grande quantidade de objetos de áudio associados a um canal down-mix, que é gerado utilizando sinais de áudio de objeto associados aos objetos de áudio. os parâmetros objeto compreendem um parâmetro de energia que indica uma energia do sinal de áudio de objeto. para obter os parâmetros de coerência e de nível, é utilizado um gerador de parâmetros que combina o parâmetro de energia e os parâmetros de processamento de objeto que dependem de uma configuração de processamento desejada.

4. 发明专利

CA2673624C APPARATUS AND METHOD FOR MULTI-CHANNEL PARAMETER TRANSFORMATION 未知
公开(公告)号：CA2673624C
公开(公告)日：2014-08-12
申请号：CA2673624
申请日：2007-10-05
申请人： FRAUNHOFER GES FORSCHUNG , DOLBY SWEDEN AB , KONINKL PHILIPS ELECTRONICS NV
发明人： HILPERT JOHANNES , LINZMEIER KARSTEN , HERRE JURGEN , SPERSCHNEIDER RALPH , HOLZER ANDREAS , VILLEMOES LARS , ENGDEGARD JONAS , PURNHAGEN HEIKO , KJORLING KRISTOFER , BREEBAART JEROEN , OOMEN WERNER
IPC分类号： G10L19/008 , H04R3/04 , H04R5/02 , H04S1/00
摘要： A parameter transformer generates level parameters, indicating an energy relation between a first and a second audio channel of a multi-channel audio signal associated to a multi-channel loudspeake configuration. The level parameter are generated based on object parameters for a plurality of audio objects associated to a down-mix channel, which is generated using object audio signals associated to the audio objects. The object parameters comprise an energy parameter indicating an energy of the object audio signal. To derive the coherence and the level parameters, a parameter generator is used, which combines the energy parameter and object rendering parameters, which depend on a desired rendering configuration.

5. 发明专利

CA2673624A1 APPARATUS AND METHOD FOR MULTI-CHANNEL PARAMETER TRANSFORMATION 未知
公开(公告)号：CA2673624A1
公开(公告)日：2008-04-24
申请号：CA2673624
申请日：2007-10-05
申请人： DOLBY SWEDEN AB , KONINKL PHILIPS ELECTRONICS NV , FRAUNHOFER GES FORSCHUNG
发明人： KJORLING KRISTOFER , HERRE JURGEN , ENGDEGARD JONAS , BREEBAART JEROEN , PURNHAGEN HEIKO , LINZMEIER KARSTEN , HILPERT JOHANNES , SPERSCHNEIDER RALPH , VILLEMOES LARS , OOMEN WERNER , HOLZER ANDREAS
IPC分类号： G10L19/14 , G10L19/00
摘要： A parameter transformer generates level parameters, indicating an energy relation between a first and a second audio channel of a multi-channel audio signal associated to a multi-channel loudspeake configuration. The level pa rameter are generated based on object parameters for a plurality of audio ob jects associated to a down-mix channel, which is generated using object audi o signals associated to the audio objects. The object parameters comprise an energy parameter indicating an energy of the object audio signal. To derive the coherence and the level parameters, a parameter generator is used, whic h combines the energy parameter and object rendering parameters, which depen d on a desired rendering configuration.

6. 发明专利

CA2739651A1 BINAURAL RENDERING OF A MULTI-CHANNEL AUDIO SIGNAL 未知
公开(公告)号：CA2739651A1
公开(公告)日：2010-04-25
申请号：CA2739651
申请日：2009-09-25
申请人： FRAUNHOFER GES FORSCHUNG , KONINKL PHILIPS ELECTRONICS NV , DOLBY SWEDEN AB
发明人： KOPPENS JEROEN , MUNDT HARALD , TERENTIEV LEONID , FALCH CORNELIA , HILPERT JOHANNES , HELLMUTH OLIVER , VILLEMOES LARS , PLOGSTIES JAN , BREEBAART JEROEN , ENGDEGARD JONAS
IPC分类号： H04S3/00 , H04S1/00
摘要： Binaural rendering a multi-channel audio signal into a binaural output signal (24) is described. The multi-channel audio signal comprises a stereo downmix signal (18) into which a plurality of audio signals are downmixed, and side information comprising a downmix information (DMG, DCLD) indicating, for each audio signal, to what extent the respective audio signal has been mixed into a first channel and a second channel of the stereo downmix signal (18), respectively, as well as object level information of the plurality of audio signals and inter-object cross correlation information describing similarities between pairs of audio signals of the plurality of audio signals. Based on a first rendering prescription, a preliminary binaural signal (54) is computed from the first and second channels of the stereo downmix signal (18). A decorrelated signal (Xn,kd) is generated as an perceptual equivalent to a mono downmix (58) of the first and second channels of the stereo downmix signal (18) being, however, decorrelated to the mono downmix (58). Depending on a second rendering prescription (P21,m), a corrective binaural signal (64) is computed from the decorrelated signal (62) and the preliminary binaural signal (54) is mixed with the corrective binaural signal (64) to obtain the binaural output signal (24).

7. 发明专利

AU2009301467A1 Binaural rendering of a multi-channel audio signal 未知
公开(公告)号：AU2009301467A1
公开(公告)日：2010-04-15
申请号：AU2009301467
申请日：2009-09-25
申请人： FRAUNHOFER GES FORSCHUNG , KONINKL PHILIPS ELECTRONICS NV , DOLBY SWEDEN AB
发明人： KOPPENS JEROEN , MUNDT HARALD , TERENTIEV LEONID , FALCH CORNELIA , HILPERT JOHANNES , HELLMUTH OLIVER , VILLEMOES LARS , PLOGSTIES JAN , BREEBAART JEROEN , ENGDEGARD JONAS
IPC分类号： H04S3/00 , H04S1/00
摘要： Binaural rendering a multi-channel audio signal into a binaural output signal (24) is described. The multi-channel audio signal comprises a stereo downmix signal (18) into which a plurality of audio signals are downmixed, and side information comprising a downmix information (DMG, DCLD) indicating, for each audio signal, to what extent the respective audio signal has been mixed into a first channel and a second channel of the stereo downmix signal (18), respectively, as well as object level information of the plurality of audio signals and inter-object cross correlation information describing similarities between pairs of audio signals of the plurality of audio signals. Based on a first rendering prescription, a preliminary binaural signal (54) is computed from the first and second channels of the stereo downmix signal (18). A decorrelated signal X d n , k is generated as an perceptual equivalent to a mono downmix (58) of the first and second channels of the stereo downmix signal (18) being, however, decorrelated to the mono downmix (58). Depending on a second rendering prescription P 2 1 , m , a corrective binaural signal (64) is computed from the decorrelated signal (62) and the preliminary binaural signal (54) is mixed with the corrective binaural signal (64) to obtain the binaural output signal (24).

8. 发明专利

CA2739651C BINAURAL RENDERING OF A MULTI-CHANNEL AUDIO SIGNAL 未知
公开(公告)号：CA2739651C
公开(公告)日：2015-03-24
申请号：CA2739651
申请日：2009-09-25
申请人： FRAUNHOFER GES FORSCHUNG , KONINKL PHILIPS ELECTRONICS NV , DOLBY SWEDEN AB
发明人： KOPPENS JEROEN , MUNDT HARALD , TERENTIEV LEONID , FALCH CORNELIA , HILPERT JOHANNES , HELLMUTH OLIVER , VILLEMOES LARS , PLOGSTIES JAN , BREEBAART JEROEN , ENGDEGARD JONAS
IPC分类号： H04S3/00 , H04S1/00
摘要： Binaural rendering a multi-channel audio signal into a binaural output signal (24) is described. The multi-channel audio signal comprises a stereo downmix signal (18) into which a plurality of audio signals are downmixed, and side information. Based on a first rendering prescription, a preliminary binaural signal (54) is computed from the first and second channels of the stereo downmix signal (18). A decorrelated signal (X~k) is generated as an perceptual equivalent to a mono downmix (58) of the first and second channels of the stereo downmix signal (18) being, however, decorrelated to the mono downmix (58). Depending on a second rendering prescription (P2l,m), a corrective binaural signal (64) is computed from the decorrelated signal (62) and the preliminary binaural signal (54) is mixed with the corrective binaural signal (64) to obtain the binaural output signal (24).

9. 发明专利

BRPI0715312A2 未知
公开(公告)号：BRPI0715312A2
公开(公告)日：2013-07-09
申请号：BRPI0715312
申请日：2007-10-05
申请人： FRAUNHOFER GES FORSCHUNG , DOLBY SWEDEN AB , KONINKL PHILIPS ELECTRONICS NV
发明人： HILPERT JOHANNES , LINZMEIER KARSTEN , HERRE JURGEN , SPERSHNEIDER RALPH , HOELZER ANDREAS , VILLEMOES LARS , ENGDEGARD JONAS , PURNHAGEN HEIKO , KJORLING KRISTOFER , BREEBAART JEROEN , OOMEN WENER
IPC分类号： G10L19/00
摘要： A parameter transformer generates level parameters, indicating an energy relation between a first and a second audio channel of a multi-channel audio signal associated to a multi-channel loudspeaker configuration. The level parameter are generated based on object parameters for a plurality of audio objects associated to a down-mix channel, which is generated using object audio signals associated to the audio objects. The object parameters comprise an energy parameter indicating an energy of the object audio signal. To derive the coherence and the level parameters, a parameter generator is used, which combines the energy parameter and object rendering parameters, which depend on a desired rendering configuration.

10. 发明专利

RU2431940C2 АППАРАТУРА И МЕТОД МНОГОКАНАЛЬНОГО ПАРАМЕТРИЧЕСКОГО ПРЕОБРАЗОВАНИЯ 未知
公开(公告)号：RU2431940C2
公开(公告)日：2011-10-20
申请号：RU2009109125
申请日：2007-10-05
申请人： FRAUNHOFER GES FORSCHUNG , DOLBY SWEDEN AB , KONINKL PHILIPS ELECTRONICS NV
发明人： HILPERT JOHANNES , LINZMEIER KARSTEN , HERRE JUERGEN , SPERSCHNEIDER RALPH , HOELZER ANDREAS , VILLEMOES LARS , ENGDEGARD JONAS , PURNHAGEN HEIKO , KJOERLING KRISTOFER , BREEBAART JEROEN , OOMEN WERNER
IPC分类号： G10L19/14 , H04S3/00
摘要： Изобретениеотноситсяк многоканальномупреобразованиюпараметров, вчастностик генерированиюпараметровкогерентностии параметроввыходногоуровня, которыеуказываютнапространственныесвойствамеждудвумязвуковымисигналами, основанныминаобъектно-параметровомбазовомпредставлениизвуковоговоспроизведенияв пространстве. Преобразовательгенерируетпараметры, определяющиесоотношениемеждупервыми вторымканаломмногоканальногозвуковогосигнала, связанныес конфигурациеймногоканальнойакустическойсистемы. Параметрыуровнягенерируютсянаосновепараметровобъектаизмножествазвуковыхобъектов, связанныхс каналомпонижающегомикширования, которыегенерируются, используязвуковыесигналыобъекта, ассоциирующиесясозвуковымиобъектами. Параметрыобъектасодержатэнергетическийпараметр, указывающийэнергиюзвуковогосигналаобъекта. Дляполученияпараметровкогерентностии уровняиспользованпараметрическийгенератор, которыйобъединяетэнергетическийпараметри параметрывоспроизведенияобъекта, которыезависятотжелаемойконфигурациивоспроизведения. Техническийрезультат - уменьшениесложностипримененияразличныхсистем, которыепредназначеныдлякодированияи расшифровыванияпараметрическихмногоканальныхзвуковыхпотоков. 3 н. и 24 з.п. ф-лы, 10 ил.

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