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    • 1. 发明申请
    • APPARATUS AND METHOD FOR PROVIDING A LOUDSPEAKER-ENCLOSURE-MICROPHONE SYSTEM DESCRIPTION
    • 提供扬声器外壳麦克风系统的装置和方法
    • WO2014015914A1
    • 2014-01-30
    • PCT/EP2012/064827
    • 2012-07-27
    • FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.SCHNEIDER, MartinKELLERMANN, Walter
    • SCHNEIDER, MartinKELLERMANN, Walter
    • H04S7/00G10L19/008
    • H04R1/02H04R1/08H04S7/301H04S2400/09H04S2420/11H04S2420/13
    • An apparatus for providing a current loudspeaker-enclosure-microphone system description of a loudspeaker-enclosure-microphone system is provided. The apparatus comprises a first transformation unit (130) for generating a plurality of wave-domain loudspeaker audio signals. Moreover, the apparatus comprises a second transformation unit (140) for generating a plurality of wave-domain microphone audio signals. Furthermore, the apparatus comprises a system description generator (150) for generating the current loudspeaker-enclosure-microphone system description based on the plurality of wave- domain loudspeaker audio signals, based on the plurality of wave-domain microphone audio signals, and based on a plurality of coupling values, wherein the system description generator (150) is configured to determine each coupling value assigned to a wave-domain pair of a plurality of wave-domain pairs by determining a relation indicator indicating a relation between a loudspeaker-signal-transformation value and a microphone-signal- transformation value.
    • 提供了一种用于提供扬声器 - 外壳 - 麦克风系统的当前扬声器 - 外壳 - 麦克风系统描述的装置。 该装置包括用于产生多个波段扬声器音频信号的第一变换单元(130)。 此外,该装置包括用于产生多个波段麦克风音频信号的第二变换单元(140)。 此外,该装置包括系统描述生成器(150),用于基于多个波域麦克风音频信号,基于多个波域扬声器音频信号,并且基于多个波域麦克风音频信号生成当前的扬声器 - 麦克风系统描述 多个耦合值,其中所述系统描述生成器(150)被配置为通过确定指示扬声器信号 - 信号对的关系的关系指示符来确定分配给多个波域对的波域对的每个耦合值, 变换值和麦克风信号转换值。
    • 3. 发明申请
    • APPARATUS AND METHOD FOR LISTENING ROOM EQUALIZATION USING A SCALABLE FILTERING STRUCTURE IN THE WAVE DOMAIN
    • 用于在波域中使用可扩展的滤波结构进行房间均衡化的装置和方法
    • WO2013045344A1
    • 2013-04-04
    • PCT/EP2012/068562
    • 2012-09-20
    • FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    • SCHNEIDER, MartinKELLERMANN, Walter
    • H04S7/00
    • H04S7/301H04S2400/09H04S2420/11H04S2420/13
    • An apparatus for listening room equalization is provided. A system identification adaptation unit (120) is configured to adapt a first loudspeaker-enclosure-microphone system identification to obtain a second loudspeaker-enclosure-microphone system identification. A filter adaptation unit (130) is configured to adapt a filter (140) based on the second loudspeaker-enclosure-microphone system identification and based on a predetermined loudspeaker-enclosure-microphone system identification. A filter (140) comprises a plurality of subfilters (141, 14r) each of which receive one or more of the transformed loudspeaker signals. Each of the subfilters (141, 14r) is adapted to generate one of a plurality of filtered loudspeaker signals based on the one or more received loudspeaker signals. At least one of the subfilters (141, 14r) is arranged to couple the at least two received loudspeaker signals to generate one of the plurality of the filtered loudspeaker signals. Moreover, at least one of the subfilters (14, 14r) has a number of the received loudspeaker signals that is smaller than a total number of the plurality of transformed loudspeaker signals.
    • 提供了一种用于收音室均衡的装置。 系统识别适配单元(120)被配置为使第一扬声器 - 机壳麦克风系统标识适应以获得第二扬声器 - 机箱麦克风系统标识。 滤波器适配单元(130)被配置为基于第二扬声器 - 外壳 - 麦克风系统识别并基于预定的扬声器 - 外壳 - 麦克风系统识别来适配滤波器(140)。 滤波器(140)包括多个子滤波器(141,14r),每个子滤波器接收一个或多个变换的扬声器信号。 每个子滤波器(141,14r)适于基于所接收的一个或多个扬声器信号产生多个滤波的扬声器信号中的一个。 子滤波器(141,14r)中的至少一个被布置成耦合至少两个接收到的扬声器信号,以产生多个经滤波的扬声器信号之一。 此外,子滤波器(14,14r)中的至少一个具有小于多个变换的扬声器信号的总数的所接收的扬声器信号的数量。