Audio signal encoder, audio bitstream, method and computer program using an object-related parametric information
    1.
    发明公开
    Audio signal encoder, audio bitstream, method and computer program using an object-related parametric information 有权
    音频信号编码器,音频比特流,使用对象相关参数信息的方法和计算机程序

    公开(公告)号:EP2816555A1

    公开(公告)日:2014-12-24

    申请号:EP14180279.3

    申请日:2010-04-28

    IPC分类号: G10L19/008 G10L19/20

    CPC分类号: G10L19/008 G10L19/20

    摘要: An audio signal encoder (600) for providing a downmix signal representation (614) and an object-related parametric information (616) on the basis of a plurality of object signals (x 1 to x N ) comprises a downmixer (620) configured to provide one or more downmix signals in dependence on downmix coefficients (d 1 to d N ) associated with the object signals (x 1 to x N ), such that the one or more downmix signals comprise a superposition of a plurality of object signals, and a side information provider (630) configured to provide an inter-object-relationship side information (OLD, IOC) describing level differences and correlation characteristics of object signals (x 1 to x N ) and an individual-object side information describing one or more individual properties of the individual object signals (x 1 to x N ).

    摘要翻译: 用于提供下混信号表示(614)和音频信号编码器(600)对象有关的对象信号(X 1至X N)的多个的基础上的参数信息(616)包括被配置成一个下混频器(620) 在与所述对象信号(X 1至X N)相关联的缩混系数(D 1至D N)的依赖性提供一个或多个下混合信号,审查没有所述一个或多个下混合信号包括对象信号的多个叠加,并 配置一个辅助信息提供者(630),以提供到对象间关系的辅助信息(OLD,IOC)描述电平差和对象信号(X 1至X N)的相关特性,以及单个对象侧信息描述的一个或多个 各个对象信号的个人属性(x 1至x N)。

    APPARATUS, METHOD AND COMPUTER PROGRAM FOR PROVIDING ADJUSTED PARAMETERS

    公开(公告)号:EP3996089A1

    公开(公告)日:2022-05-11

    申请号:EP21198132.9

    申请日:2010-10-15

    IPC分类号: G10L19/008

    摘要: An apparatus for providing one or more adjusted parameters for a provision of an upmix signal representation on the basis of a downmix signal representation and a parametric side information associated with the downmix signal representation comprises a parameter adjuster. The parameter adjuster is configured to receive one or more parameters and to provide, on the basis thereof, one or more adjusted parameters. The parameter adjuster is configured to provide the one or more adjusted parameters in dependence on an average value of a plurality of parameter values, such that a distortion of the upmix signal representation caused by the use of non-optimal parameters is reduced at least for parameters deviating from optimal parameters by more than a predetermined deviation.

    Encoder, decoder and methods for backward compatible multi-resolution spatial-audio-object-coding
    8.
    发明公开
    Encoder, decoder and methods for backward compatible multi-resolution spatial-audio-object-coding 审中-公开
    编码器,解码器和方法,用于向后兼容的空间音频对象编码多分辨率

    公开(公告)号:EP2717261A1

    公开(公告)日:2014-04-09

    申请号:EP13167485.5

    申请日:2013-05-13

    IPC分类号: G10L19/008 G10L19/02

    CPC分类号: G10L19/008 G10L19/02

    摘要: A decoder for generating an un-mixed audio signal comprising a plurality of un-mixed audio channels is provided. Moreover, an encoder and an encoded audio signal is provided. The decoder comprises an un-mixing-information determiner for determining un-mixing information by receiving first parametric side information on the at least one audio object signal and second parametric side information on the at least one audio object signal, wherein the frequency resolution of the second parametric side information is higher than the frequency resolution of the first parametric side information. Moreover, the decoder comprises an un-mix module for applying the un-mixing information on a downmix signal, indicating a downmix of at least one audio object signal, to obtain an un-mixed audio signal comprising the plurality of un-mixed audio channels. The un-mixing-information determiner is configured to determine the un-mixing information by modifying the first parametric information and the second parametric information to obtain modified parametric information, such that the modified parametric information has a frequency resolution which is higher than the first frequency resolution.

    摘要翻译: 提供了一种用于在非混合音频信号产生包括未混合音频信道与多个解码器。 更完了,在编码器和编码的音频信号被提供。 通过接收关于在所述至少一个音频对象信号的所述至少一个音频对象信号,并且第二参数侧信息的第一参数侧信息,worin的频率分辨率的解码器,用于确定开采未混合信息未混合-信息确定包括 第二参数侧信息比的第一参量侧信息的频率分辨率越高。 更上方,所述解码器包括到未混合组件用于施加上的下混信号的未混合的信息,表示至少一个音频对象信号的下混合,以获得包含未混合的音频信道的所述多个未混合音频信号 , 未混合信息确定器被配置为确定矿的未混合通过修改第一参数信息和第二参数的信息,以获得修改的参数信息,检查做了修改的参数信息的频率分辨率的所有比所述第一频率高 分辨率。

    Decoder, encoder and method for informed loudness estimation in object-based audio coding systems
    9.
    发明公开
    Decoder, encoder and method for informed loudness estimation in object-based audio coding systems 审中-公开
    Dekodierer,Kodierer und VerfahrenfürinformierteLautstärkenschätzungin objektbasierten Audiocodierungssystemen

    公开(公告)号:EP2879131A1

    公开(公告)日:2015-06-03

    申请号:EP13194664.2

    申请日:2013-11-27

    IPC分类号: G10L19/008

    摘要: A decoder for generating an audio output signal comprising one or more audio output channels is provided. The decoder comprises a receiving interface (110) for receiving an audio input signal comprising a plurality of audio object signals, for receiving loudness information on the audio object signals, and for receiving rendering information indicating whether one or more of the audio object signals shall be amplified or attenuated. Moreover, the decoder comprises a signal processor (120) for generating the one or more audio output channels of the audio output signal. The signal processor (120) is configured to determine a loudness compensation value depending on the loudness information and depending on the rendering information. Furthermore, the signal processor (120) is configured to generate the one or more audio output channels of the audio output signal from the audio input signal depending on the rendering information and depending on the loudness compensation value. Moreover, an encoder is provided.

    摘要翻译: 提供了一种用于产生包括一个或多个音频输出通道的音频输出信号的解码器。 解码器包括接收接口(110),用于接收包括多个音频对象信号的音频输入信号,用于接收关于音频对象信号的响度信息,并且用于接收指示音频对象信号中的一个或多个是否为 放大或减弱。 此外,解码器包括用于产生音频输出信号的一个或多个音频输出声道的信号处理器(120)。 信号处理器(120)被配置为根据响度信息和取决于渲染信息来确定响度补偿值。 此外,信号处理器(120)被配置为根据呈现信息并根据响度补偿值从音频输入信号产生音频输出信号的一个或多个音频输出声道。 此外,提供了一种编码器。

    Apparatus and method for enhanced spatial audio object coding
    10.
    发明公开
    Apparatus and method for enhanced spatial audio object coding 审中-公开
    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

    IPC分类号: G10L19/008 H04S3/00

    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。