专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明专利

BRPI0605865A 未知
公开(公告)号：BRPI0605865A
公开(公告)日：2007-12-18
申请号：BRPI0605865
申请日：2006-02-01
申请人： FRAUNHOFER GES FORSCHUNG , CODING TECH AB , KONINKL PHILIPS ELECTRONICS NV
发明人： HOELZER ANDREAS , HERRE JUERGEN , ROEDEN JONAS , PURNHAGEN HEIKO , KJOERLING KRISTOFER , ENGDEGARD JONAS , BREEBAART JEROEN , SCHUIJERS ERIK , OOMEN WERNER , VILLEMOES LARS
IPC分类号： G10L19/00 , H04S3/00
摘要： A parametric representation of a multi-channel audio signal describes the spatial properties of the audio signal well with compact side information when a coherence information, describing the coherence between a first and a second channel, is derived within a hierarchical encoding process only for channel pairs including a first channel having only information of a left side with respect to a listening position and including a second channel having only information from a right side with respect to a listening position. As within the hierarchical process the multiple audio channels of the audio signal are downmixed iteratively into monophonic channels, one can pick the relevant parameters from an encoding step involving only channel pairs carrying the information needed to describe the spatial properties of the multi-channel audio signal.

12. 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.

13. 发明专利

CA2566992C APPARATUS AND METHOD FOR GENERATING MULTI-CHANNEL SYNTHESIZER CONTROL SIGNAL AND APPARATUS AND METHOD FOR MULTI-CHANNEL SYNTHESIZING 未知
公开(公告)号：CA2566992C
公开(公告)日：2013-12-24
申请号：CA2566992
申请日：2006-01-19
申请人： FRAUNHOFER GES FORSCHUNG , CODING TECH AB , KONINKL PHILIPS ELECTRONICS NV
发明人： NEUSINGER MATTHIAS , HERRE JUERGEN , DISCH SASCHA , PURNHAGEN HEIKO , KJOERLING KRISTOFER , ENGDEGARD JONAS , BREEBAART JEROEN , SCHUIJERS ERIK , OOMEN WERNER
IPC分类号： G10L19/008 , H04S3/00
摘要： On an encoder-side, a multi-channel audio input signal is analyzed for obtaining smoothing control information, which is to be used by a decoder-side multi-channel audio synthesis for smoothing quantized transmitted parameters or values derived from the quantized transmitted parameters for providing an improved subjective audio quality in particular for slowly moving point sources and rapidly moving point sources having tonal material such as fast moving sinusoids.

14. 发明专利

MX2011003742A RENDERIZACION BINAURAL DE UNA SEÑAL DE AUDIO MULTICANAL. 未知
公开(公告)号：MX2011003742A
公开(公告)日：2011-06-09
申请号：MX2011003742
申请日：2009-09-25
申请人： FRAUNHOFER GES FORSCHUNG
发明人： VILLEMOES LARS , HILPERT JOHANNES , ENGDEGARD JONAS , BREEBAART JEROEN , PLOGSTIES JAN , MUNDT HARALD , HELLMUTH OLIVER , TERENTIEV LEONID , FALCH CORNELIA , KOPPENS JEROEN
IPC分类号： H04S3/00 , H04S1/00
摘要： Se describe la renderización binaural una señal de audio multicanal en una señal de salida binaural (24). La señal de audio multicanal comprende una señal (18) de conversión estereofónica de multicanal a estéreo, a la cual una pluralidad de señales de audio se convierte de multicanal a estéreo, e información conexa que comprende una información sobre conversión de multicanal a estéreo (DMG, DCLD) que indica, para cada señal de audio, hasta qué punto la respectiva señal de audio se ha mezclado en un primer canal y un segundo canal de la señal (18) de conversión estereofónica de multicanal a estéreo, respectivamente, así como la información sobre el nivel del objeto de la pluralidad de señales de audio y la información de correlación cruzada entre objetos que describe semejanzas entre pares de señales de audio de la pluralidad de señales de audio. Basado en una primera prescripción de renderización, una señal (54) binaural preliminar, se calcula a partir de los primeros y segundos canales de la señal (18) de conversión estereofónica de multicanal a estéreo. Se genera una señal no correlacionada (Xnd,k), como un equivalente perceptual con una conversión monoaural de multicanal a estéreo (58), de los primeros y segundos canales de la señal (18) de conversión estereofónica de multicanal a estéreo que es, sin embargo, decorrelacionada a la conversión monoaural de multicanal a estéreo (58). Según una segunda prescripción de renderización (p21, m), se calcula una señal (64) binaural correctiva a partir de la señal (62) no correlacionada y la señal (54) binaural preliminar, se mezcla con la señal (64) binaural correctiva para obtener la señal de salida binaural (24).

15. 发明专利

AU2006301612B2 Temporal and spatial shaping of multi-channel audio signals 未知
公开(公告)号：AU2006301612B2
公开(公告)日：2010-07-22
申请号：AU2006301612
申请日：2006-08-31
申请人： FRAUNHOFER GES FORSCHUNG , KONINKLIJKE PHILIPS ELECTRONICS NV
发明人： BREEBAART JEROEN , NEUSINGER MATTHIAS , DISCH SASCHA , HERRE JUERGEN , HOTHO GERARD
IPC分类号： G10L19/00 , H04S3/00
摘要： A selected channel of a multi-channel signal which is represented by frames composed from sampling values having a high time resolution can be encoded with higher quality when a wave form parameter representation representing a wave form of an intermediate resolution representation of the selected channel is derived, the wave form parameter representation including a sequence of intermediate wave form parameters having a time resolution lower than the high time resolution of the sampling values and higher than a time resolution defined by a frame repetition rate. The wave form parameter representation with the intermediate resolution can be used to shape a reconstructed channel to retrieve a channel having a signal envelope close to that one of the selected original channel. The time scale on which the shaping is performed is shorter than the time scale of a framewise processing, thus enhancing the quality of the reconstructed channel. On the other hand, the shaping time scale is larger than the time scale of the sampling values, significantly reducing the amount of data needed by the wave form parameter representation.

16. 发明专利

AU2006233504B2 Apparatus and method for generating multi-channel synthesizer control signal and apparatus and method for multi-channel synthesizing 未知
公开(公告)号：AU2006233504B2
公开(公告)日：2008-07-31
申请号：AU2006233504
申请日：2006-01-19
申请人： DOLBY INT AB , FRAUNHOFER GES FORSCHUNG , KONINKLIJKE PHILIPS ELECTRONICS NV
发明人： ENGDEGARD JONAS , OOMEN WERNER , BREEBAART JEROEN , DISCH SASCHA , HERRE JUERGEN , SCHUIJERS ERIK , PURNHAGEN HEIKO , KJOERLING KRISTOFER , NEUSINGER MATTHIAS
IPC分类号： G10L19/14 , H04S5/00
摘要： An apparatus and a method for generating a multi-channel synthesizer control signal, a multi-channel synthesizer, a method of generating an output signal from an input signal and a machine-readable storage medium are provided. On an encoder-side, a multi-channel input signal is analyzed for obtaining smoothing control information, which is to be used by a decoder-side multi-channel synthesis for smoothing quantized transmitted parameters or values derived from the quantized transmitted parameters for providing an improved subjective audio quality in particular for slowly moving point sources and rapidly moving point sources having tonal material such as fast moving sinusoids.

17. 发明专利

CA2625213A1 TEMPORAL AND SPATIAL SHAPING OF MULTI-CHANNEL AUDIO SIGNALS 未知
公开(公告)号：CA2625213A1
公开(公告)日：2007-04-19
申请号：CA2625213
申请日：2006-08-31
申请人： FRAUNHOFER GES FORSCHUNG , KONINKL PHILIPS ELECTRONICS NV
发明人： HERRE JUERGEN , NEUSINGER MATTHIAS , BREEBAART JEROEN , HOTHO GERARD , DISCH SASCHA
IPC分类号： G10L19/00 , H04S3/00
摘要： A selected channel of a multi-channel signal which is represented by frames composed from sampling values having a high time resolution can be encoded with higher quality when a wave form parameter representation representing a wave form of an intermediate resolution representation of the selected channel is derived, the wave form parameter representation including a sequence of intermediate wave form parameters having a time resolution lower than the high time resolution of the sampling values and higher than a time resolution defined by a frame repetition rate. The wave form parameter representation with the intermediate resolution can be used to shape a reconstructed channel to retrieve a channel having a signal envelope close to that one of the selected original channel. The time scale on which the shaping is performed is shorter than the time scale of a framewise processing, thus enhancing the quality of the reconstructed channel. On the other hand, the shaping time scale is larger than the time scale of the sampling values, significantly reducing the amount of data needed by the wave form parameter representation.

18. 发明专利

AU2006301612A1 Temporal and spatial shaping of multi-channel audio signals 未知
公开(公告)号：AU2006301612A1
公开(公告)日：2007-04-19
申请号：AU2006301612
申请日：2006-08-31
申请人： KONINKL PHILIPS ELECTRONICS NV , FRAUNHOFER GES FORSCHUNG
发明人： BREEBAART JEROEN , NEUSINGER MATTHIAS , DISCH SASCHA , HERRE JURGEN , HOTHO GERARD
IPC分类号： G10L19/00 , H04S3/00
摘要： A selected channel of a multi-channel signal which is represented by frames composed from sampling values having a high time resolution can be encoded with higher quality when a wave form parameter representation representing a wave form of an intermediate resolution representation of the selected channel is derived, the wave form parameter representation including a sequence of intermediate wave form parameters having a time resolution lower than the high time resolution of the sampling values and higher than a time resolution defined by a frame repetition rate. The wave form parameter representation with the intermediate resolution can be used to shape a reconstructed channel to retrieve a channel having a signal envelope close to that one of the selected original channel. The time scale on which the shaping is performed is shorter than the time scale of a framewise processing, thus enhancing the quality of the reconstructed channel. On the other hand, the shaping time scale is larger than the time scale of the sampling values, significantly reducing the amount of data needed by the wave form parameter representation.

19. 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.

20. 发明专利

AU2009301467B2 Binaural rendering of a multi-channel audio signal 未知
公开(公告)号：AU2009301467B2
公开(公告)日：2013-08-01
申请号：AU2009301467
申请日：2009-09-25
申请人： DOLBY INT AB , FRAUNHOFER GES FORSCHUNG , KONINKLIJKE PHILIPS ELECTRONICS NV
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

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式