APPARATUS AND METHOD FOR GEOMETRY-BASED SPATIAL AUDIO CODING
    61.
    发明授权
    APPARATUS AND METHOD FOR GEOMETRY-BASED SPATIAL AUDIO CODING 有权
    基于几何的空间音频编码的装置和方法

    公开(公告)号:EP2647005B1

    公开(公告)日:2017-08-16

    申请号:EP11801648.4

    申请日:2011-12-02

    摘要: An apparatus for generating an audio output signal to simulate a recording of a virtual microphone at a configurable virtual position in an environment includes a sound events position estimator and an information computation module. The former is adapted to estimate a sound source position indicating a position of a sound source in the environment, wherein the sound events position estimator is adapted to estimate the sound source position based on first and second direction information provided by first and second real spatial microphones, respectively, located at first and second real microphone positions in the environment, respectively. The information computation module is adapted to generate the audio output signal based on a first recorded audio input signal, on the first real microphone position, on the virtual position of the virtual microphone, and on the sound source position.

    摘要翻译: 一种用于生成音频输出信号以模拟环境中的可配置虚拟位置处的虚拟麦克风的记录的设备,包括声音事件位置估计器和信息计算模块。 前者适用于估计指示环境中的声源的位置的声源位置,其中声音事件位置估计器适于基于由第一和第二真实空间麦克风提供的第一和第二方向信息来估计声源位置 分别位于环境中的第一和第二真实麦克风位置处。 信息计算模块适用于基于第一记录音频输入信号,第一真实麦克风位置,虚拟麦克风的虚拟位置和声源位置生成音频输出信号。

    APPARATUS AND METHOD FOR AUDIO RENDERING EMPLOYING A GEOMETRIC DISTANCE DEFINITION
    62.
    发明公开
    APPARATUS AND METHOD FOR AUDIO RENDERING EMPLOYING A GEOMETRIC DISTANCE DEFINITION 审中-公开
    设备和方法的音频播放器使用几何距离的定义

    公开(公告)号:EP3123747A1

    公开(公告)日:2017-02-01

    申请号:EP15709657.9

    申请日:2015-03-04

    IPC分类号: H04S7/00 H04S3/00 G10L19/08

    摘要: An apparatus (100) for playing back an audio object associated with a position is provided. The apparatus (100) comprises a distance calculator (110) for calculating distances of the position to speakers or for reading the distances of the position to the speakers. The distance calculator (110) is configured to take a solution with a smallest distance. The apparatus (100) is configured to play back the audio object using the speaker corresponding to the solution.

    摘要翻译: 用于播放与位置相关联的音频对象的背部的装置(100)被提供。 的装置(100)包括用于计算位置的距离扬声器或用于读取位置到扬声器的距离的距离计算器(110)。 距离计算器(110)被配置为采取具有最小距离的解决方案。 的装置(100)被配置成回放使用扬声器对应于所述溶液中的音频对象。

    CONCEPT FOR GENERATING A DOWNMIX SIGNAL
    63.
    发明公开
    CONCEPT FOR GENERATING A DOWNMIX SIGNAL 有权
    奥地利葡萄牙葡萄牙阿尔及利亚

    公开(公告)号:EP3050054A1

    公开(公告)日:2016-08-03

    申请号:EP14758881.8

    申请日:2014-09-02

    IPC分类号: G10L19/008

    摘要: An audio signal processing device (1) for downmixing of a first input signal (X
    1 ) and a second input signal (X
    2 ) to a downmix signal (X
    D ) comprising: a dissimilarity extractor (2) configured to receive the first input signal (X
    1 ) and the second input (X
    2 ) signal as well as to output an extracted signal (Û
    2 ), which is lesser correlated with respect to the first input signal (X
    1 ) than the second input signal (X
    2 ) and a combiner (3) configured to combine the first input signal (X
    1 ) and the extracted signal (Û
    2 ) in order to obtain the downmix signal (X
    D ).

    摘要翻译: 一种用于将第一输入信号(X 1)和第二输入信号(X 2)下混合到下混合信号(XD)的音频信号处理装置(1),包括:相异性提取器(2),被配置为接收第一输入信号 (X 1)和第二输入(X 2)信号,以及输出与第二输入信号(X 2)相比相对于第一输入信号(X 1)较小相关的提取信号(U 2) 以及组合器(3),被配置为组合第一输入信号(X 1)和提取的信号(U 2)以获得下混信号(XD)。

    METHOD AND SIGNAL PROCESSING UNIT FOR MAPPING A PLURALITY OF INPUT CHANNELS OF AN INPUT CHANNEL CONFIGURATION TO OUTPUT CHANNELS OF AN OUTPUT CHANNEL CONFIGURATION
    65.
    发明公开
    METHOD AND SIGNAL PROCESSING UNIT FOR MAPPING A PLURALITY OF INPUT CHANNELS OF AN INPUT CHANNEL CONFIGURATION TO OUTPUT CHANNELS OF AN OUTPUT CHANNEL CONFIGURATION 有权
    方法和信号处理单元输入信道配置多个输入通道为了使输出信道配置输出通道转让

    公开(公告)号:EP3025519A2

    公开(公告)日:2016-06-01

    申请号:EP14738862.3

    申请日:2014-07-15

    IPC分类号: H04S7/00 H04S3/00 G10L19/008

    摘要: A method for mapping a plurality of input channels of an input channel configuration to output channels of an output channel configuration comprises providing a set of rules associated with each input channel of the plurality of input channels, wherein the rules define different mappings between the associated input channel and a set of output channels. For each input channel of the plurality of input channels, a rule associated with the input channel is accessed, determination is made whether the set of output channels defined in the accessed rule is present in the output channel configuration, and the accessed rule is selected if the set of output channels defined in the accessed rule is present in the output channel configuration. The input channels are mapped to the output channels according to the selected rule.

    摘要翻译: 用于映射的第一输入通道和输入通道配置中的输出信道配置的至少一个输出信道的第二输入信道,worin各输入通道和各输出信道的装置,具有在其中相关联的扬声器位于相对于一个方向 中央听众位置,worin所述装置被配置为将所述第一输入信道映射到所述输出信道配置的第一输出通道。 该装置进一步被配置为的至少一种)映射第二输入通道到所述第一输出通道,包括通过施加均衡滤波器中的至少一个和一个解相关滤波器的第二输入通道,以及b处理所述第二输入通道 ),尽管角度偏差的第二输入信道的一个方向和所述第一输出通道的方向之间的factthat的是小于在第二输入信道的一个方向和所述第二输出通道之间和/或角的偏差为小于 到第二输入通道的方向和第三输出通道的方向之间的角度偏差,通过在第二和第三输出通道之间平移映射第二输入信道到第二和第三输出通道。

    ENCODER, DECODER AND METHODS FOR SIGNAL-DEPENDENT ZOOM-TRANSFORM IN SPATIAL AUDIO OBJECT CODING
    67.
    发明公开
    ENCODER, DECODER AND METHODS FOR SIGNAL-DEPENDENT ZOOM-TRANSFORM IN SPATIAL AUDIO OBJECT CODING 审中-公开
    CODIERER,DECODIERER UND VERFAHRENFÜRSIGNALABHÄNGIGEZOOMUMWANDLUNG BEIM空间 - 音频对象编码

    公开(公告)号:EP2904610A1

    公开(公告)日:2015-08-12

    申请号:EP13776987.3

    申请日:2013-10-02

    摘要: A decoder for generating an audio output signal comprising one or more audio output channels from a downmix signal is provided. The downmix signal encodes one or more audio object signals. The decoder comprises a control unit (181) for setting an activation indication to an activation state depending on a signal property of at least one of the one or more audio object signals. Moreover, the decoder comprises a first analysis module (182) for transforming the downmix signal to obtain a first transformed downmix comprising a plurality of first subband channels. Furthermore, the decoder comprises a second analysis module (183) for generating, when the activation indication is set to the activation state, a second transformed downmix by transforming at least one of the first subband channels to obtain a plurality of second subband channels, wherein the second transformed downmix comprises the first subband channels which have not been transformed by the second analysis module and the second subband channels. Moreover, the decoder comprises an un-mixing unit (184), wherein the un-mixing unit (184) is configured to un-mix the second transformed downmix, when the activation indication is set to the activation state, based on parametric side information on the one or more audio object signals to obtain the audio output signal, and to un-mix the first transformed downmix, when the activation indication is not set to the activation state, based on the parametric side information on the one or more audio object signals to obtain the audio output signal. Furthermore, an encoder is provided.

    摘要翻译: 提供一种解码器,用于从包括多个时域下混样本的下混信号产生包括一个或多个音频输出通道的音频输出信号。 降混信号编码两个或更多个音频对象信号。 解码器包括用于确定多个分析窗口的窗口序列发生器(134),其中每个分析窗口包括下混合信号的多个时域下混样本。 多个分析窗口的每个分析窗口具有指示所述分析窗口的时域下混样本数的窗口长度。 窗口序列生成器(134)被配置为确定多个分析窗口,使得每个分析窗口的窗口长度取决于两个或更多个音频对象信号中的至少一个的信号属性。 此外,解码器包括在/ f分析模块(135),用于根据窗口长度将多个分析窗口中的每个分析窗口的多个时域下混样本从时域变换到时间 - 频域 的分析窗口,以获得一个转换的下混。 此外,解码器包括用于基于关于两个或更多个音频对象信号的参数侧信息解混合变换的下混合以获得音频输出信号的解混合单元(136)。 此外,提供了一种编码器。

    APPARATUS AND METHOD FOR GEOMETRY-BASED SPATIAL AUDIO CODING
    68.
    发明公开
    APPARATUS AND METHOD FOR GEOMETRY-BASED SPATIAL AUDIO CODING 有权
    VORRICHTUNG UND VERFAHREN ZUR GEOMETRIE-BASIERTENRÄUMLICHENAUDIO-KODIERUNG

    公开(公告)号:EP2647005A1

    公开(公告)日:2013-10-09

    申请号:EP11801648.4

    申请日:2011-12-02

    摘要: An apparatus for generating an audio output signal to simulate a recording of a virtual microphone at a configurable virtual position in an environment includes a sound events position estimator and an information computation module. The former is adapted to estimate a sound source position indicating a position of a sound source in the environment, wherein the sound events position estimator is adapted to estimate the sound source position based on first and second direction information provided by first and second real spatial microphones, respectively, located at first and second real microphone positions in the environment, respectively. The information computation module is adapted to generate the audio output signal based on a first recorded audio input signal, on the first real microphone position, on the virtual position of the virtual microphone, and on the sound source position.

    摘要翻译: 一种用于生成音频输出信号以模拟在环境中的可配置虚拟位置处的虚拟麦克风的记录的装置包括声音事件位置估计器和信息计算模块。 前者适于估计指示环境中声源的位置的声源位置,其中声音事件位置估计器适于基于由第一和第二实际空间麦克风提供的第一和第二方向信息来估计声源位置 分别位于环境中的第一和第二实际麦克风位置。 信息计算模块适于基于第一实际麦克风位置上的第一记录音频输入信号,虚拟麦克风的虚拟位置和声源位置生成音频输出信号。