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    AUDIO DECODER, AUDIO ENCODER, METHOD FOR PROVIDING A DECODED AUDIO SIGNAL, METHOD FOR PROVIDING AN ENCODED AUDIO SIGNAL, AUDIO STREAM, AUDIO STREAM PROVIDER AND COMPUTER PROGRAM USING A STREAM IDENTIFIER
    2.
    发明公开
    AUDIO DECODER, AUDIO ENCODER, METHOD FOR PROVIDING A DECODED AUDIO SIGNAL, METHOD FOR PROVIDING AN ENCODED AUDIO SIGNAL, AUDIO STREAM, AUDIO STREAM PROVIDER AND COMPUTER PROGRAM USING A STREAM IDENTIFIER 审中-公开

    公开(公告)号：EP4235662A2

    公开(公告)日：2023-08-30

    申请号：EP23180164.8

    申请日：2018-01-10

    申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

    发明人： Neuendorf, Max ,  Felix, Matthias ,  Hildenbrand, Matthias ,  Schuster, Lukas ,  Hofmann, Ingo ,  Herrmann, Bernd ,  Rettelbach, Nikolaus

    IPC分类号： G10L19/22

    摘要： An audio decoder for providing a decoded audio signal representation on the basis of an encoded audio signal representation is configured to adjust decoding parameters in dependence on a configuration information and is also configured to decode one or more audio frames using a current configuration information. The audio decoder is configured to compare a configuration information in a configuration structure associated with one or more frames to be decoded by the current configuration information, and to make a transition to perform a decoding using the configuration information in the configuration structure associated with the one or more frames to be decoded as a new configuration information if the configuration information in the configuration structure associated with the one or more frames to be decoded, or a relevant portion of the configuration information in the configuration structure associated with the one or more frames to be decoded, is different from the current configuration information. The audio decoder is configured to consider a stream identifier information included in the configuration structure when comparing the configuration information, such that a difference between a stream identifier previously acquired by the audio decoder and a stream identifier represented by the stream identifier information in the configuration structure associated with the one or more frames to be decoded causes to make the transition.

    Audio decoder, audio encoder, methods for decoding and encoding an audio signal and computer program
    7.
    发明公开
    Audio decoder, audio encoder, methods for decoding and encoding an audio signal and computer program 有权
    Audiodekodierer，Verfahren zum Dekodieren eines Audiosignals und Computerprogramm

    公开(公告)号：EP2214164A2

    公开(公告)日：2010-08-04

    申请号：EP10152001.3

    申请日：2010-01-28

    申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

    发明人： Neuendorf, Max ,  Lecomte, Jérémie ,  Multrus, Markus ,  Bayer, Stefan ,  Nagel, Frederik ,  Fuchs, Guillaume ,  Robilliard, Julien ,  Rettelbach, Nikolaus ,  Geiger, Ralf ,  Grill, Bernhard

    IPC分类号： G10L19/02 ,  G10L19/14

    CPC分类号： G10L19/022 ,  G10L19/20

    摘要： An audio decoder for providing a decoded representation of an audio content on the basis of an encoded representation of the audio content comprises a linear-prediction-domain decoder core configured to provide a time-domain representation of an audio frame on the basis of a set of linear-prediction domain parameters associated with the audio frame and a frequency-domain decoder core configured to provide a time-domain representation of an audio frame on the basis of a set of frequency-domain parameters, taking into account a transform window out of a set comprising a plurality of different transform windows. The audio decoder comprises a signal combiner configured to overlap-and-add-time-domain representations of subsequent audio frames encoded in different domains, in order to smoothen a transition between the time-domain representations of the subsequent frames. The set of transform windows comprises one or more windows specifically adapted for a transition between a frequency-domain core mode and a linear-prediction-domain core mode.

    摘要翻译： 一种音频解码器，用于基于音频内容的经编码的表示来提供音频内容的解码表示，包括：线性预测域解码器核心，被配置为基于设置提供音频帧的时域表示 与所述音频帧相关联的线性预测域参数以及被配置为基于一组频域参数提供音频帧的时域表示的频域解码器核心，考虑到从 一组包括多个不同的变换窗口。 音频解码器包括信号组合器，其被配置为对在不同域中编码的后续音频帧进行重叠和加时域表示，以平滑后续帧的时域表示之间的转换。 变换窗口集合包括一个或多个窗口，其特别适用于频域核心模式和线性预测域核心模式之间的转换。

    Apparatus and method for decoding an encoded audio signal with low computational resources
    10.
    发明公开
    Apparatus and method for decoding an encoded audio signal with low computational resources 审中-公开
    装置和方法，用于与小计算机资源进行解码的编码的音频信号

    公开(公告)号：EP2881943A1

    公开(公告)日：2015-06-10

    申请号：EP13196305.0

    申请日：2013-12-09

    申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

    发明人： Niedermeier, Andreas ,  Wilde, Stephan ,  Fischer, Daniel ,  Hildenbrand, Matthias ,  Gayer, Marc ,  Neuendorf, Max

    IPC分类号： G10L19/24 ,  G10L19/20 ,  G10L21/038

    CPC分类号： G10L19/22 ,  G10L19/022 ,  G10L19/167 ,  G10L19/20 ,  G10L19/24 ,  G10L21/038

    摘要： An apparatus for decoding an encoded audio signal (101) comprising bandwidth extension control data indicating either a first harmonic bandwidth extension mode or a second non-harmonic bandwidth extension mode, comprises: an input interface (100) for receiving the encoded audio signal comprising the bandwidth extension control data indicating either the first harmonic bandwidth extension mode or the second non-harmonic bandwidth extension mode; a processor (102) for decoding the audio signal (101) using the second non-harmonic bandwidth extension mode; and a controller (104) for controlling the processor (102) to decode the audio signal using the second non-harmonic bandwidth extension mode, even when the bandwidth extension control data indicates the first harmonic bandwidth extension mode for the encoded signal.

    摘要翻译： 用于编码音频信号（101）包括带宽扩展controldata表示是一次谐波带宽扩展模式或第二非谐波带宽扩展模式的解码的设备，包括：用于接收所述编码的音频信号包括所述输入接口（100） 带宽扩展controldata表示是第一谐波带宽扩展模式或者第二非谐波带宽扩展模式; 用于使用所述第二非谐波带宽扩展模式中的音频信号（101）进行解码的处理器（102）; 和用于控制所述处理器（102）使用所述第二非谐波带宽扩展模式中的音频信号进行解码，即使在带宽扩展控制数据指示用于所述经编码信号的所述第一谐波带宽扩展模式的控制器（104）。