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1. 发明申请

WO2011110525A1 SYSTEM FOR COMBINING LOUDNESS MEASUREMENTS IN A SINGLE PLAYBACK MODE 审中-公开
标题翻译：用于在单回放模式下组合舒适度测量的系统
公开(公告)号：WO2011110525A1
公开(公告)日：2011-09-15
申请号：PCT/EP2011/053389
申请日：2011-03-07
申请人： DOLBY INTERNATIONAL AB , DOLBY LABORATORIES LICENSING CORPORATION , WOLTERS, Martin , SCHUG, Michael , MUNDT, Harald, H. , RIEDMILLER, Jeffrey, C.
发明人： WOLTERS, Martin , SCHUG, Michael , MUNDT, Harald, H. , RIEDMILLER, Jeffrey, C.
IPC分类号： H03G9/00 , H03G9/14
CPC分类号： H03G9/00 , H03G9/005 , H03G9/14
摘要： The present document relates to processing of multimedia data, notably the encoding, the transmission, the decoding and the rendering of multimedia data, e.g. audio files or bitstreams. In particular, the present document relates to the implementation of loudness control in multimedia players. A method for providing loudness related data to a media player is described. The method comprises the steps of providing a first loudness related value associated with an audio signal; wherein the first loudness related value has been determined according to a first procedure; of converting the first loudness related value into a second loudness related value using a reversible relation; wherein the second loudness related value is associated with a second procedure for determining loudness related values; of storing the second loudness related value in metadata associated with the audio signal; and of providing the metadata to the media player.
摘要翻译：本文件涉及多媒体数据的处理，特别是多媒体数据的编码，传输，解码和呈现，例如，音频文件或比特流。特别地，本文件涉及多媒体播放器中的响度控制的实现。描述了一种用于向媒体播放器提供响度相关数据的方法。该方法包括以下步骤：提供与音频信号相关联的第一响度相关值; 其中所述第一响度相关值已经根据第一过程确定; 使用可逆关系将第一响度相关值转换为第二响度相关值; 其中所述第二响度相关值与用于确定响度相关值的第二过程相关联; 将第二响度相关值存储在与音频信号相关联的元数据中; 并向媒体播放器提供元数据。

2. 发明申请

WO2012158333A1 FORENSIC DETECTION OF PARAMETRIC AUDIO CODING SCHEMES 审中-公开
标题翻译：参考音频编码方案的审查
公开(公告)号：WO2012158333A1
公开(公告)日：2012-11-22
申请号：PCT/US2012/035785
申请日：2012-04-30
申请人： DOLBY LABORATORIES LICENSING CORPORATION , DOLBY INTERNATIONAL AB , MUNDT, Harald, H. , BISWAS, Arijit , RADHAKRISHNAN, Regunathan
发明人： MUNDT, Harald, H. , BISWAS, Arijit , RADHAKRISHNAN, Regunathan
IPC分类号： G10L19/00 , G10L21/02
CPC分类号： G10L19/00 , G10L19/008 , G10L21/02 , G10L21/038 , G10L25/03
摘要： The present document relates to audio forensics, notably the blind detection of traces of parametric audio encoding / decoding. In particular, the present document relates to the detection of parametric frequency extension audio coding, such as spectral band replication (SBR) or spectral extension (SPX), from uncompressed waveforms such as PCM (pulse code modulation) encoded waveforms. A method for detecting frequency extension coding history in a time domain audio signal is described. The method may comprise transforming the time domain audio signal into a frequency domain, thereby generating a plurality of subband signals in a corresponding plurality of subbands comprising low and high frequency subbands; determining a degree of relationship between subband signals in the low frequency subbands and subband signals in the high frequency subbands; wherein the degree of relationship is determined based on the plurality of subband signals; and determining frequency extension coding history if the degree of relationship is greater than a relationship threshold.
摘要翻译：本文件涉及音频取证，特别是盲目检测参数音频编码/解码的痕迹。特别地，本文件涉及从诸如PCM（脉冲编码调制）编码波形的未压缩波形检测参数频率扩展音频编码，例如频谱带复制（SBR）或频谱扩展（SPX）。描述了用于检测时域音频信号中的频率扩展编码历史的方法。该方法可以包括将时域音频信号变换成频域，从而在包括低频和高频子带的相应多个子带中产生多个子带信号; 确定低频子带中的子带信号与高频子带中的子带信号之间的关系程度; 其中所述关系度基于所述多个子带信号来确定; 以及如果所述关系度大于关系阈值，则确定频率扩展编码历史。

3. 发明授权

EP2710588B1 FORENSIC DETECTION OF PARAMETRIC AUDIO CODING SCHEMES 有权
标题翻译：参量音频编码方案法医检测
公开(公告)号：EP2710588B1
公开(公告)日：2015-09-09
申请号：EP12723553.9
申请日：2012-04-30
申请人： Dolby Laboratories Licensing Corporation , Dolby International AB
发明人： MUNDT, Harald, H. , BISWAS, Arijit , RADHAKRISHNAN, Regunathan
IPC分类号： G10L19/00 , G10L21/02
CPC分类号： G10L19/00 , G10L19/008 , G10L21/02 , G10L21/038 , G10L25/03

4. 发明授权

EP2545646B1 SYSTEM FOR COMBINING LOUDNESS MEASUREMENTS IN A SINGLE PLAYBACK MODE 有权转让
标题翻译：用于在单个回放模式中组合回路测量的系统
公开(公告)号：EP2545646B1
公开(公告)日：2017-05-17
申请号：EP11707167.0
申请日：2011-03-07
申请人： Dolby International AB , Dolby Laboratories Licensing Corporation
发明人： WOLTERS, Martin , SCHUG, Michael , MUNDT, Harald, H. , RIEDMILLER, Jeffrey, C.
IPC分类号： H03G9/00 , H03G9/14
CPC分类号： H03G9/00 , H03G9/005 , H03G9/14

5. 发明公开

EP2710588A1 FORENSIC DETECTION OF PARAMETRIC AUDIO CODING SCHEMES 有权
标题翻译：参量音频编码方案法医检测
公开(公告)号：EP2710588A1
公开(公告)日：2014-03-26
申请号：EP12723553.9
申请日：2012-04-30
申请人： Dolby Laboratories Licensing Corporation , Dolby International AB
发明人： MUNDT, Harald, H. , BISWAS, Arijit , RADHAKRISHNAN, Regunathan
IPC分类号： G10L19/00 , G10L21/02
CPC分类号： G10L19/00 , G10L19/008 , G10L21/02 , G10L21/038 , G10L25/03
摘要： The present document relates to audio forensics, notably the blind detection of traces of parametric audio encoding / decoding. In particular, the present document relates to the detection of parametric frequency extension audio coding, such as spectral band replication (SBR) or spectral extension (SPX), from uncompressed waveforms such as PCM (pulse code modulation) encoded waveforms. A method for detecting frequency extension coding history in a time domain audio signal is described. The method may comprise transforming the time domain audio signal into a frequency domain, thereby generating a plurality of subband signals in a corresponding plurality of subbands comprising low and high frequency subbands; determining a degree of relationship between subband signals in the low frequency subbands and subband signals in the high frequency subbands; wherein the degree of relationship is determined based on the plurality of subband signals; and determining frequency extension coding history if the degree of relationship is greater than a relationship threshold.

6. 发明公开

EP2545646A1 SYSTEM FOR COMBINING LOUDNESS MEASUREMENTS IN A SINGLE PLAYBACK MODE 有权转让
标题翻译： SYSTEM FOR组合体积测量在一个单一的WIEDERGABEMOUS
公开(公告)号：EP2545646A1
公开(公告)日：2013-01-16
申请号：EP11707167.0
申请日：2011-03-07
申请人： Dolby International AB , Dolby Laboratories Licensing Corporation
发明人： WOLTERS, Martin , SCHUG, Michael , MUNDT, Harald, H. , RIEDMILLER, Jeffrey, C.
IPC分类号： H03G9/00 , H03G9/14
CPC分类号： H03G9/00 , H03G9/005 , H03G9/14
摘要： The present document relates to processing of multimedia data, notably the encoding, the transmission, the decoding and the rendering of multimedia data, e.g. audio files or bitstreams. In particular, the present document relates to the implementation of loudness control in multimedia players. A method for providing loudness related data to a media player is described. The method comprises the steps of providing a first loudness related value associated with an audio signal; wherein the first loudness related value has been determined according to a first procedure; of converting the first loudness related value into a second loudness related value using a reversible relation; wherein the second loudness related value is associated with a second procedure for determining loudness related values; of storing the second loudness related value in metadata associated with the audio signal; and of providing the metadata to the media player.

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