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1. 发明申请

WO2013017435A1 IMPROVED FM STEREO RADIO RECEIVER BY USING PARAMETRIC STEREO 审中-公开
标题翻译：通过使用参数立体声改进FM立体声无线电接收器
公开(公告)号：WO2013017435A1
公开(公告)日：2013-02-07
申请号：PCT/EP2012/064258
申请日：2012-07-20
申请人： DOLBY INTERNATIONAL AB , MUELLER, Jan , THESING, Robin , BEER, Michael
发明人： MUELLER, Jan , THESING, Robin , BEER, Michael
IPC分类号： H04B1/16 , G10L19/00 , H04H40/45
CPC分类号： G10L19/008 , G10L19/00 , H04B1/1661 , H04H40/45
摘要： The invention relates to an apparatus (1) for improving a stereo audio signal of an FM stereo radio receiver (10). It is suggested to employ components of a standard HE-ACC v2 decoder (40) in such apparatus (1) to efficiently recover the stereo audio signal (L\ R') while also exhibiting good signal quality. To that end, parametric stereo parameters (15) shall be quantized and submitted to such decoder (40) together with a mono-downmix signal (25). The decoder (25) can then easily recover the parametric stereo parameters (15) by de-quantizing them via a simple lookup table, and finally creating the stereo output signal (L'R') from the de-quantized parametric stereo parameters and the mono-downmix signal (25). The apparatus (1) further includes a parameter estimation stage (5) which may again be embodied on the basis of components of a standard HE-ACC v2 encoder (65). After estimating the parametric stereo parameters (15) and generating the mono-downmix signal (25), the encoder (65) will not use further encoding other than the already performed PS- coding. An apparatus (1) according to the invention therefore advantageously includes decoder (40) and/or encoder (65) components of a standard HE-ACC v2 codec - utilizing its parametric stereo parameter processing capabilities.
摘要翻译：本发明涉及一种用于改进FM立体声无线电接收机（10）的立体声音频信号的装置（1）。建议在这种装置（1）中使用标准HE-ACC v2解码器（40）的组件来有效地恢复立体声音频信号（L \ R'），同时也表现出良好的信号质量。为此，参数化立体声参数（15）将被量化并与单降混信号（25）一起提交给这样的解码器（40）。然后，解码器（25）可以通过经由简单的查找表对它们进行去量化来容易地恢复参数立体声参数（15），并且最终从去量化的参数立体声参数创建立体声输出信号（L'R'）单声道下混信号（25）。装置（1）还包括可以基于标准HE-ACC v2编码器（65）的组件再次实现的参数估计级（5）。在估计参数立体声参数（15）并产生单声道下混信号（25）之后，编码器（65）将不再使用已经执行的PS编码以外的其他编码。因此，根据本发明的装置（1）有利地包括利用其参数立体声参数处理能力的标准HE-ACC v2编解码器的解码器（40）和/或编码器（65）组件。

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. 发明申请

WO2011102967A1 AUDIO DECODER AND DECODING METHOD USING EFFICIENT DOWNMIXING 审中-公开
标题翻译：音频解码器和解码方法使用高效下载
公开(公告)号：WO2011102967A1
公开(公告)日：2011-08-25
申请号：PCT/US2011/023533
申请日：2011-02-03
申请人： DOLBY LABORATORIES LICENSING CORPORATION , DOLBY INTERNATIONAL AB , THESING, Robin , SILVA, James M. , ANDERSEN, Robert L.
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： 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
摘要翻译：配置有用于执行方法的指令的方法，装置，计算机可读存储介质，以及编码在一个或多个计算机可读有形介质中以执行动作的逻辑。该方法是将包括N.n个信道的音频数据解码为M.m个解码的音频信道，包括解包元数据和解码和解码频域指数和尾数数据; 从解压缩和解码的频域指数和尾数数据确定变换系数; 逆变换频域数据; 在M

4. 发明申请

WO2011073201A2 SBR BITSTREAM PARAMETER DOWNMIX 审中-公开
公开(公告)号：WO2011073201A2
公开(公告)日：2011-06-23
申请号：PCT/EP2010/069651
申请日：2010-12-14
申请人： DOLBY INTERNATIONAL AB , KJOERLING, Kristofer , THESING, Robin
发明人： KJOERLING, Kristofer , THESING, Robin
IPC分类号： G10L19/00
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/或音频转码。特别地，本文件涉及一种用于从包括较高数量N个音频信道的比特流有效地解码数量M的音频信道的方案。在本文中，描述了将频谱带复制（SBR）参数的第一和第二源集合合并到SBR参数的目标集合的方法和系统。第一和第二源组包括分别彼此不同的第一和第二频带划分。第一源组包括与第一频带划分的频带相关联的第一组能量相关值。第二源组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。该方法包括将第一和第二频带划分为包括基本频带的联合网格的步骤; 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; 并且组合第一和第二值以产生基本频带的目标能量相关值。

5. 发明申请

WO2011042149A1 EFFICIENT MULTICHANNEL SIGNAL PROCESSING BY SELECTIVE CHANNEL DECODING 审中-公开
标题翻译：通过选择性通道解码的高效多通道信号处理
公开(公告)号：WO2011042149A1
公开(公告)日：2011-04-14
申请号：PCT/EP2010/006059
申请日：2010-10-05
申请人： DOLBY INTERNATIONAL AB , THESING, Robin
发明人： THESING, Robin
IPC分类号： G10L19/00 , H04S3/00
CPC分类号： G10L19/008
摘要： An input signal conveying encoded information representing one or more audio channels is decoded by determining the configuration of channels represented by the encoded information, obtaining from the channel configuration a channel selection mask that specifies which of the one or more audio channels are to be decoded, extracting encoded information from the input signal, and decoding the extracted encoded information for those audio channels specified in the channel selection mask.
摘要翻译：通过确定由编码信息表示的信道的配置来传送表示一个或多个音频信道的编码信息的输入信号，从信道配置获得指定一个或多个音频信道中的哪一个将被解码的信道选择掩码，从输入信号中提取编码信息，以及解码提取的编码信息，用于在频道选择掩码中指定的那些音频通道。

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