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1. 发明申请

WO2013124445A3 METHODS AND SYSTEMS FOR EFFICIENT RECOVERY OF HIGH FREQUENCY AUDIO CONTENT 审中-公开
标题翻译：高频音频内容有效恢复的方法与系统
公开(公告)号：WO2013124445A3
公开(公告)日：2013-11-21
申请号：PCT/EP2013053609
申请日：2013-02-22
申请人： DOLBY INT AB
发明人： THESING ROBIN , SCHUG MICHAEL
IPC分类号： G10L21/0388
CPC分类号： G10L19/008 , G10L19/0204 , G10L19/028 , G10L19/167 , G10L21/0388
摘要： The present document relates to the technical field of audio coding, decoding and processing. It specifically relates to methods of recovering high frequency content of an audio signal from low frequency content of the same audio signal in an efficient manner. A method for determining a first banded tonality value (311, 312) for a first frequency subband (205) of an audio signal is described. The first banded tonality value (311, 312) is used for approximating a high frequency component of the audio signal based on a low frequency component of the audio signal. The method comprises determining a set of transform coefficients in a corresponding set of frequency bins based on a block of samples of the audio signal; determining a set of bin tonality values (341 ) for the set of frequency bins using the set of transform coefficients, respectively; and combining a first subset of two or more of the set of bin tonality values (341) for two or more corresponding adjacent frequency bins of the set of frequency bins lying within the first frequency subband, thereby yielding the first banded tonality value (311, 312) for the first frequency subband.
摘要翻译：本文件涉及音频编码，解码和处理技术领域。具体涉及以有效的方式从相同音频信号的低频内容中恢复音频信号的高频内容的方法。描述了一种用于确定音频信号的第一频率子带（205）的第一带状音调值（311,312）的方法。第一带状音调值（311,312）用于基于音频信号的低频分量近似音频信号的高频分量。该方法包括基于音频信号的样本块来确定频率组的相应集合中的一组变换系数; 使用所述变换系数集合分别确定所述频率组集合的一组bin音调值（341）; 以及将位于所述第一频率子带内的所述频率组集合中的两个或更多个对应的相邻频率块的所述组音调值集合（341）中的两个或更多个的第一子集合，从而产生所述第一带状音调值（311， 312）用于第一频率子带。

2. 发明申请

WO2011073201A3 SBR BITSTREAM PARAMETER DOWNMIX 审中-公开
公开(公告)号：WO2011073201A3
公开(公告)日：2011-10-06
申请号：PCT/EP2010069651
申请日：2010-12-14
申请人： DOLBY INT AB , KJOERLING KRISTOFER , THESING ROBIN
发明人： KJOERLING KRISTOFER , THESING ROBIN
IPC分类号： G10L19/00 , G10L19/008 , G10L21/02 , G10L21/038
CPC分类号： G10L19/008 , G10L21/038
摘要： The present document relates to audio decoding and/or audio transcoding. In particular, the present document relates to a scheme for efficiently decoding a number M of audio channels from a bitstream comprising a higher number N of audio channels. In this context a method and system for merging a first and a second source set of spectral band replication (SBR) parameters to a target set of SBR parameters is described. The first and second source set comprise a first and second frequency band partitioning, respectively, which are different from one another. The first source set comprises a first set of energy related values associated with frequency bands of the first frequency band partitioning. The second source set comprises a second set of energy related values associated with frequency bands of the second frequency band partitioning. The target set comprises a target energy related value associated with an elementary frequency band. The method comprises the steps of breaking up the first and the second frequency band partitioning into a joint grid comprising the elementary frequency band; assigning a first value of the first set of energy related values to the elementary frequency band; assigning a second value of the second set of energy related values to the elementary frequency band; and combining the first and second value to yield the target energy related value for the elementary frequency band.
摘要翻译：本文件涉及音频解码和/或音频代码转换。特别地，本文件涉及一种用于从包括较高数目的N个音频声道的比特流有效地解码M个音频声道的方案。在这种情况下，描述了用于将第一和第二源光谱带复制（SBR）参数集合合并为目标SBR参数集合的方法和系统。第一和第二源组分别包括彼此不同的第一和第二频带划分。第一源集合包括与第一频带划分的频带相关联的第一组能量相关值。第二源集合包括与第二频带划分的频带相关联的第二组能量相关值。目标集合包括与基本频带相关联的目标能量相关值。该方法包括以下步骤：将第一和第二频带划分成包括基本频带的联合网格; 将第一组能量相关值的第一值分配给基本频带; 将第二组能量相关值的第二值分配给基本频带; 以及组合第一和第二值以产生基本频带的目标能量相关值。

3. 发明公开

EP2992528A4 HYBRID ENCODING OF MULTICHANNEL AUDIO 有权转让
标题翻译：混合编码的多声道音频
公开(公告)号：EP2992528A4
公开(公告)日：2017-01-18
申请号：EP14791004
申请日：2014-04-22
申请人： DOLBY LABORATORIES LICENSING CORP , DOLBY INT AB
发明人： WILLIAMS PHILLIP , SCHUG MICHAEL , THESING ROBIN
IPC分类号： G10L19/00 , H04S3/00
CPC分类号： G10L19/008 , G10L19/02
摘要： A method for encoding a multichannel audio input signal, including steps of generating a downmix of low frequency components of a subset of channels of the input signal, waveform coding each channel of the downmix, thereby generating waveform coded, downmixed data, performing parametric encoding on at least some higher frequency components of each channel of the input signal, thereby generating parametrically coded data, and generating an encoded audio signal (e.g., an E-AC-3 encoded signal) indicative of the waveform coded, downmixed data and the parametrically coded data. Other aspects are methods for decoding such an encoded signal, and systems configured to perform any embodiment of the inventive method.

4. 发明专利

BR122020020698B1 Método para decodificação, meio legível por computador não transitório para decodificação, decodificador, e método de codificação de áudio para codificação em forma de onda intercalada 未知
公开(公告)号：BR122020020698B1
公开(公告)日：2022-05-31
申请号：BR122020020698
申请日：2014-04-04
申请人： DOLBY INT AB
发明人： MUNDT HARALD , PURNHAGEN HEIKO , KARL JONAS ROEDEN , KJOERLING KRISTOFER , THESING ROBIN
IPC分类号： G10L19/02 , G10L19/26 , G10L21/038
摘要： a presente invenção refere-se a métodos e aparelhos para decodificação e codificação de sinais de áudio. em particular, um método para decodificação inclui receber um sinal codificado em forma de onda tendo um conteúdo espectral correspondente a um subconjunto da faixa de frequência acima de uma frequência de cruzamento. o sinal codificado em forma de onda é intercalado com uma reconstrução de alta frequência paramétrica do sinal de áudio acima da frequência de cruzamento. desta forma uma reconstrução melhorada das bandas de alta frequência do sinal de áudio é alcançada.

5. 发明专利

AP3147A Audio decoder and decoding method using efficient downmixing 未知
公开(公告)号：AP3147A
公开(公告)日：2015-03-31
申请号：AP2011005900
申请日：2011-02-03
申请人： DOLBY LAB LICENSING CORP , DOLBY INT AB
发明人： SILVA JAMES M , ANDERSEN ROBERT L , THESING ROBIN
IPC分类号： G10L19/00 , H04S3/00
摘要： A method, an apparatus, a computer readable storage medium configured with instructions for carrying out a method, and logic encoded in one or more computer-readable tangible medium to carry out actions. The method is to decode audio data that includes N.n channels to M.m decoded audio channels, including unpacking metadata and unpacking and decoding frequency domain exponent and mantissa data; determining transform coefficients from the unpacked and decoded frequency domain exponent and mantissa data; inverse transforming the frequency domain data; and in the case M

6. 发明专利

PL2360683T3 Dekodowanie audio przy użyciu wydajnego downmixingu 未知
公开(公告)号：PL2360683T3
公开(公告)日：2014-08-29
申请号：PL11154910
申请日：2011-02-17
申请人： DOLBY LABORATORIES LICENSING CORP , DOLBY INT AB
发明人： THESING ROBIN , SILVA JAMES M , ANDERSEN ROBERT L
IPC分类号： G10L19/008 , H04S3/00

7. 发明专利

RU2526745C2 НИЗВЕДЕНИЕ ПАРАМЕТРОВ ПОСЛЕДОВАТЕЛЬНОСТИ БИТОВ SBR 未知
公开(公告)号：RU2526745C2
公开(公告)日：2014-08-27
申请号：RU2012124827
申请日：2010-12-14
申请人： DOLBY INT AB
发明人： KJOERLING KRISTOFER , THESING ROBIN
IPC分类号： G10L19/00 , G10L19/008 , G10L21/02 , G10L21/038
摘要： Изобретениеотноситсяк средствамдекодированияи/илитранскодированиязвука. Техническийрезультатзаключаетсяв уменьшениисложностипроцессауменьшениячислаканаловприсохранениирелевантнойвысокочастотнойинформациио каналах. Объединяютпервыйи второйисходныенаборыпараметроввоспроизведенияполосыспектра (SBR) вконечныйнаборпараметров SBR. Первыйи второйисходныенаборывключаютпервоеи второеразбиенияполосычастотсоответственно, которыеотличныдруготдруга. Первыйисходныйнаборвключаетпервыйнаборэнергозависимыхзначений, связанныхс полосамичастотпервогоразбиенияполосычастот. Второйисходныйнаборвключаетвторойнаборэнергозависимыхзначений, связанныхс полосамичастотвторогоразбиенияполосычастот. Конечныйнаборвключаетконечныйнаборэнергозависимыхзначений, связанныхс элементарнойполосойчастот. Способвключаетэтапыразделенияпервогои второгоразбиенийполосычастотв объединеннуюкоординатнуюсетку, включающуюэлементарнуюполосучастот; назначениепервогозначенияпервогонабораэнергозависимыхзначенийв элементарнуюполосучастот; назначениевторогозначениявторогонабораэнергозависимыхзначенийв элементарнуюполосучастот; иобъединениепервогои второгозначенийдляполученияконечногоэнергозависимогозначенияэлементарнойполосычастот. 9 н. и 23 з.п. ф-лы, 9 ил.

8. 发明专利

CA2757643C AUDIO DECODER AND DECODING METHOD USING EFFICIENT DOWNMIXING 未知
公开(公告)号：CA2757643C
公开(公告)日：2013-01-08
申请号：CA2757643
申请日：2011-02-03
申请人： DOLBY LAB LICENSING CORP , DOLBY INT AB
发明人： THESING ROBIN , SILVA JAMES M , ANDERSEN ROBERT L
IPC分类号： H04S3/00
摘要： A method, an apparatus, a computer readable storage medium configured with instructions for carrying out a method, and logic encoded in one or more computer- readable tangible medium to carry out actions. The method is to decode audio data that includes N.n channels to M.m decoded audio channels, including unpacking metadata and unpacking and decoding frequency domain exponent and mantissa data; determining transform coefficients from the unpacked and decoded frequency domain exponent and mantissa data; inverse transforming the frequency domain data; and in the case M

9. 发明专利

PE12612012A1 METODO DE DECODIFICACION MEDIANTE COMBINACION DE REDUCCION DE CANALES DE AUDIO EFICIENTE 未知
公开(公告)号：PE12612012A1
公开(公告)日：2012-09-14
申请号：PE0017382011
申请日：2011-02-03
申请人： DOLBY LAB LICENSING CORP , DOLBY INT AB
发明人： THESING ROBIN , SILVA JAMES M , ANDERSEN ROBERT L
IPC分类号： G10L19/00 , H04S3/00
CPC分类号： G10L19/008 , G10L19/02 , G10L19/022 , H04S3/008
摘要： REFEFIDO A UN METODO, UN APARATO, UN MEDIO DE ALMACENAMIENTO LEGIBLE POR COMPUTADORA, CONFIGURADO CON INSTRUCCIONES PARA LLEVAR A CABO UN METODO, Y LOGICA CODIFICADA EN UNO O MAS MEDIOS TANGIBLES LEGIBLES POR COMPUTADORA, PARA LLEVAR A CABO ACCIONES. EL METODO DEBE DECODIFICAR INFORMACION DE AUDIO QUE INCLUYE CANALES N.n EN CANALES DE AUDIO DECODIFICADOS M.m, LO QUE INCLUYE EL DESEMPAQUE DE METADATOS Y EL DESEMPAQUE Y LA DECODIFICACION DE INFORMACION DE EXPONENTE DE DOMINIO DE FRECUENCIA Y MANTISA; LA TRANSFORMACION INVERSA DE LA INFORMACION DE DOMINIO DE FRECUENCIA; Y EN EL CASO M

10. 发明专利

SG174552A1 AUDIO DECODER AND DECODING METHOD USING EFFICIENT DOWNMIXING 未知
公开(公告)号：SG174552A1
公开(公告)日：2011-10-28
申请号：SG2011069242
申请日：2011-02-03
申请人： DOLBY LAB LICENSING CORP , DOLBY INT AB
发明人： THESING ROBIN , SILVA JAMES M , ANDERSEN ROBERT L
摘要： A method, an apparatus, a computer readable storage medium configured with instructions for carrying out a method, and logic encoded in one or more computer- readable tangible medium to carry out actions. The method is to decode audio data that includes N.n channels to M.m decoded audio channels, including unpacking metadata and unpacking and decoding frequency domain exponent and mantissa data; determining transform coefficients from the unpacked and decoded frequency domain exponent and mantissa data; inverse transforming the frequency domain data; and in the case M

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