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2. 发明申请

WO2005004533A1 SOUND REPRODUCTION SYSTEMS FOR USE BY ADJACENT USERS 审中-公开
标题翻译：声音复制系统由相关用户使用
公开(公告)号：WO2005004533A1
公开(公告)日：2005-01-13
申请号：PCT/GB2004/002839
申请日：2004-07-01
申请人： UNIVERSITY OF SOUTHAMPTON , ELLIOTT, Stephen, John , ABULULA, Husam , BRAVA, Teresa, Maria
发明人： ELLIOTT, Stephen, John , ABULULA, Husam , BRAVA, Teresa, Maria
IPC分类号： H04R3/12
CPC分类号： H04R3/12
摘要： A sound reproduction system for providing sound to adjacent users comprises first and second speaker means positioned respectively adjacent to the intended head positions of first and second users. Each speaker means comprises a pair of speakers, one of which (q, p) faces inwards towards the head position (po) of the user, the other of which faces outwards generally towards the head position (pl)of the second user. Filter means H 1 control the input to the outwardly facing speaker (qsl)relative to the input applied to the inwardly facing speaker (qp) so as to reduce the sound that would be perceived by the second user due to the first speaker means (qp). The filter means (H 1 ) may provide a delayed and weighted version of the signal input to it. A sound reproduction system alternatively comprises a feedforward compensating filter means (H 1 , H 2 ) having an input connected to the first speaker means (q2) and an output connected to the second speakers means (ql) configured to provide the second speaker means (ql) with a modified version of the signals fed to the first means and so reduce the sound perceived by the second user (p5)as emitted by the first speaker means (q2).
摘要翻译：用于向相邻用户提供声音的声音再现系统包括分别邻近第一和第二用户的预期头部位置定位的第一和第二扬声器装置。每个扬声器装置包括一对扬声器，其中一个扬声器（q，p）朝向使用者的头部位置（po）向内，另一个扬声器大体朝向第二用户的头部位置（P1）向外。滤波器装置H1相对于施加到面向内的扬声器（qp）的输入控制面向外的扬声器（qsl）的输入，以便减少由于第一扬声器装置（qp）而被第二用户察觉的声音，。滤波器装置（H1）可以提供对其输入的信号的延迟和加权版本。声音再现系统可替代地包括具有连接到第一扬声器装置（q2）的输入的一个前馈补偿滤波器装置（H1，H2）和连接到第二扬声器装置（q1）的输出，该第二扬声器装置配置成提供第二扬声器装置（q1）具有馈送到第一装置的信号的修改版本，并且因此减少由第一扬声器装置（q2）发射的第二用户（p5）感知的声音。

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