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    FRAME ELEMENT LENGTH TRANSMISSION IN AUDIO CODING
    6.
    发明公开
    FRAME ELEMENT LENGTH TRANSMISSION IN AUDIO CODING 审中-公开
    RAHMENELEMENTLÄNGENÜBERTRAGUNGBEI DER AUDIOCODIERUNG

    公开(公告)号：EP2686849A1

    公开(公告)日：2014-01-22

    申请号：EP12715632.1

    申请日：2012-03-19

    申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. ,  Dolby International AB ,  Koninklijke Philips Electronics N.V.

    发明人： NEUENDORF, Max ,  MULTRUS, Markus ,  DÖHLA, Stefan ,  PURNHAGEN, Heiko ,  DE BONT, Frans

    IPC分类号： G10L19/14

    CPC分类号： G10L19/008 ,  G10L19/00 ,  G10L19/167 ,  G10L19/18

    摘要： Frame elements which shall be made available for skipping may are transmitted more efficiently by arranging that a default payload length information is transmitted separately within a configuration block, with the length information within the frame elements, in turn, being subdivided into a default payload length flag followed, if the default payload length flag is not set, by a payload length value explicitly coding the payload length of the respective frame element. However, if the default payload length flag is set, an explicit transmission of the payload length may be avoided. Rather, any frame element, the default extension payload length flag of which is set, has the default payload length and any frame element, the default extension payload length flag of which is not set, has a payload length corresponding to the payload length value. By this measure, transmission effectiveness is increased.

    摘要翻译： 通过安排比特流的每个帧序列具有N个帧元素的序列，从而实现了一方面太高的比特流和解码开销与另一方面的帧元素定位的灵活性之间的更好的折中，并且在 比特流具有表示元素数N的字段的配置块和表示对于N个元素位置的序列的每个元素位置的多个元素类型中的元素类型的类型指示语法部分， 在帧的N个帧元素的序列中，每个帧元素是由类型指示部分针对相应元素位置指示的元素类型，其中相应的元素位置在相应的帧元素的N个帧元素的序列之内 帧中的比特流。

    Audio encoder, audio decoder and related methods for processing multi-channel audio signals using complex prediction
    8.
    发明公开
    Audio encoder, audio decoder and related methods for processing multi-channel audio signals using complex prediction 审中-公开
    音频编码器，音频解码器和用于使用复杂的预测处理多通道音频信号相关联的方法

    公开(公告)号：EP2375409A1

    公开(公告)日：2011-10-12

    申请号：EP10169432.1

    申请日：2010-07-13

    申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. ,  Dolby International AB

    发明人： PURNHAGEN, Heiko ,  CARLSSON, Pontus ,  VILLEMOES, Lars ,  ROBILLARD, Julien ,  NEUSINGER, Matthias ,  HELMRICH, Christian ,  HILPERT, Johannes ,  RETTELBACH, Nikolaus ,  DISCH, Sascha ,  EDLER, Bernd

    IPC分类号： G10L19/00 ,  G10L19/04

    CPC分类号： G10L19/04 ,  G10L19/008

    摘要： An audio encoder and an audio decoder are based on a combination of two audio channels (201, 202) to obtain a first combination signal (204) as a mid signal and a residual signal (205) which can be derived using a predicted side signal derived from the mid signal. The first combination signal and the prediction residual signal are encoded (209) and written (212) into a data stream (213) together with the prediction information (206) derived by an optimizer (207) based on an optimization target (208). A decoder uses the prediction residual signal, the first combination signal and the prediction information to derive a decoded first channel signal and a decoded second channel signal. In an encoder example or in a decoder example, a real-to-imaginary transform can be applied for estimating the imaginary part of the spectrum of the first combination signal. For calculating the prediction signal used in the derivation of the prediction residual signal, the real-valued first combination signal is multiplied by a real portion of the complex prediction information and the estimated imaginary part of the first combination signal is multiplied by an imaginary portion of the complex prediction information.

    摘要翻译： 到音频解码器的音频编码器，并且基于两个音频信道的组合（201,202），以获得第一组合信号（204）作为一个中间信号和其可以使用预测的侧信号导出的残差信号（205） 从中间信号导出。 第一组合信号和所述预测残差信号进行编码（209）和写入（212）成数据流（213），在优化目标（208）的基础上通过在优化器（207）导出的所述预测信息（206）连接在一起。 解码器使用所述预测残差信号，第一组合信号和预测信息来导出经解码的第一声道信号和解码的第二信道信号。 在编码器实施例中或在解码器实施例中，实部 - 虚数变换可以应用用于估计所述第一组合信号的频谱的虚部。 用于计算预测残留信号的导出中使用的预测信号，该实值的第一组合信号，乘以的复预测信息和所述第一组合信号的估算虚部实数部分在虚部被-乘以 复杂的预测信息。

    FRAME ELEMENT POSITIONING IN FRAMES OF A BITSTREAM REPRESENTING AUDIO CONTENT
    9.
    发明公开
    FRAME ELEMENT POSITIONING IN FRAMES OF A BITSTREAM REPRESENTING AUDIO CONTENT 审中-公开
    UNG UNG UNG TEN TEN TEN TEN TEN TEN TEN TEN TEN TEN TEN TEN TEN TEN TEN TEN TEN TEN TEN TEN TEN TEN TEN TEN TEN TEN TEN TEN TEN

    公开(公告)号：EP2686848A1

    公开(公告)日：2014-01-22

    申请号：EP12715631.3

    申请日：2012-03-19

    申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. ,  Dolby International AB ,  Koninklijke Philips Electronics N.V.

    发明人： NEUENDORF, Max ,  MULTRUS, Markus ,  DÖHLA, Stefan ,  PURNHAGEN, Heiko ,  DE BONT, Frans

    IPC分类号： G10L19/14

    CPC分类号： G10L19/008 ,  G10L19/00 ,  G10L19/167 ,  G10L19/18

    摘要： A better compromise between a too high bitstream and decoding overhead on the one hand and flexibility of frame element positioning on the other hand is achieved by arranging that each of the sequence of frames of the bitstream comprises a sequence of N frame elements and, on the other hand, the bitstream comprises a configuration block comprising a field indicating the number of elements N and a type indication syntax portion indicating, for each element position of the sequence of N element positions, an element type out of a plurality of element types with, in the sequences of N frame elements of the frames, each frame element being of the element type indicated, by the type indication portion, for the respective element position at which the respective frame element is positioned within the sequence of N frame elements of the respective frame in the bitstream. Thus, the frames are equally structured in that each frame comprises the same sequence of N frame elements of the frame element type indicated by the type indication syntax portion, positioned within the bitstream in the same sequential order. This sequential order is commonly adjustable for the sequence of frames by use of the type indication syntax portion which indicates, for each element position of the sequence of N element positions, an element type out of a plurality of element types.

    摘要翻译： 通过安排比特流的每个帧序列具有N个帧元素的序列，从而实现了一方面太高的比特流和解码开销与另一方面的帧元素定位的灵活性之间的更好的折中，并且在 比特流具有表示元素数N的字段的配置块和表示对于N个元素位置的序列的每个元素位置的多个元素类型中的元素类型的类型指示语法部分， 在帧的N个帧元素的序列中，每个帧元素是由类型指示部分针对相应元素位置指示的元素类型，其中相应的元素位置在相应的帧元素的N个帧元素的序列之内 帧中的比特流。