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1. 发明公开

EP2830050A1 Apparatus and method for enhanced spatial audio object coding 审中-公开
标题翻译： Vorrichtung und Verfahren zur verb desserten Codierung einesräumlichenAudioobjekts
公开(公告)号：EP2830050A1
公开(公告)日：2015-01-28
申请号：EP13189290.3
申请日：2013-10-18
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. , Friedrich-Alexander-Universität Erlangen-Nürnberg
发明人： Disch, Sasacha , Fuchs, Harald , Hellmuth, Oliver , Herre, Jürgen , Murtaza, Adrian , Paulus, Jouni , Ridderbusch, Falko , Terentiv, Leon
IPC分类号： G10L19/008 , H04S3/00
CPC分类号： H04S3/02 , G10L19/008 , H04S3/00 , H04S3/006 , H04S3/008 , H04S7/305 , H04S2400/01 , H04S2400/03 , H04S2400/11 , H04S2400/13 , H04S2420/03
摘要： An apparatus for generating one or more audio output channels is provided. The apparatus comprises a parameter processor (110) for calculating mixing information and a downmix processor (120) for generating the one or more audio output channels. The downmix processor (120) is configured to receive an audio transport signal comprising one or more audio transport channels. One or more audio channel signals are mixed within the audio transport signal, and one or more audio object signals are mixed within the transport signal, and wherein the number of the one or more audio transport channels is smaller than the number of the one or more audio channel signals plus the number of the one or more audio object signals. The parameter processor (110) is configured to receive downmix information indicating information on how the one or more audio channel signals and the one or more audio object signals are mixed within the one or more audio transport channels, and wherein the parameter processor (110) is configured to receive covariance information. Moreover, the parameter processor (110) is configured to calculate the mixing information depending on the downmix information and depending on the covariance information. The downmix processor (120) is configured to generate the one or more audio output channels from the audio transport signal depending on the mixing information. The information indicates a level difference information for at least one of the one or more audio channel signals and further indicates a level difference information for at least one of the one or more audio object signals. However, the covariance information does not indicate correlation information for any pair of one of the one or more audio channel signals and one of the one or more audio object signals.
摘要翻译：提供了一种用于产生一个或多个音频输出通道的装置。该装置包括用于计算混合信息的参数处理器（110）和用于生成一个或多个音频输出通道的下混处理器（120）。下混合处理器（120）被配置为接收包括一个或多个音频传输信道的音频传输信号。一个或多个音频信道信号在音频传输信号内混合，并且一个或多个音频对象信号在传输信号内混合，并且其中一个或多个音频传输信道的数量小于一个或多个音频通道信号加上一个或多个音频对象信号的数量。参数处理器（110）被配置为接收指示关于一个或多个音频信道信号和一个或多个音频对象信号如何在一个或多个音频传输信道内混合的信息的下混信息，并且其中参数处理器（110）被配置为接收协方差信息。此外，参数处理器（110）被配置为根据缩混信息并根据协方差信息来计算混合信息。下混合处理器（120）被配置为根据混合信息从音频传输信号生成一个或多个音频输出信道。该信息指示一个或多个音频信道信号中的至少一个音频信道信号的电平差信息，并进一步指示一个或多个音频对象信号中的至少一个音频对象信号的电平差信息。然而，协方差信息并不表示一个或多个音频信道信号中的任何一个与一个或多个音频对象信号之一的相关信息。

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