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1. 发明授权

US10251015B2 Personal multichannel audio controller design 有权
公开(公告)号：US10251015B2
公开(公告)日：2019-04-02
申请号：US15504534
申请日：2014-08-21
申请人： DIRAC RESEARCH AB
发明人： Adrian Bahne , Anders Ahlen
IPC分类号： G06F17/00 , H04S7/00
摘要： Disclosed is a method for determining filter coefficients of an audio precompensation controller for the compensation of an associated sound system, including N≥2 loudspeakers, including estimating, for each one of at least a pair of the loudspeakers, a model transfer function at each of M control points distributed in Z≥2 spatially separated listening zones in a listening environment of the sound system. The method also includes determining, for each of the M control points, a zone-dependent target transfer function at least based on the zone affiliation of the control point; and determining the filter coefficients of the audio precompensation controller at least based on the model transfer functions and the target transfer functions of the M control points. Consequently, an audio precompensation controller for an associated sound system can be obtained that enables improved and/or customized sound reproduction in two or more listening zones simultaneously.

2. 发明申请

US20150131826A1 AUDIO PRECOMPENSATION CONTROLLER DESIGN WITH PAIRWISE LOUDSPEAKER CHANNEL SIMILARITY 有权
标题翻译：音频预声控制器设计与配对扬声器通道相似
公开(公告)号：US20150131826A1
公开(公告)日：2015-05-14
申请号：US14402900
申请日：2013-06-20
申请人： DIRAC RESEARCH AB
发明人： Adrian Bahne , Lars-Johan Brannmark , Anders Ahlen
IPC分类号： H04S7/00 , H04R5/04 , H04R3/04
CPC分类号： H04S7/307 , H04R3/04 , H04R3/12 , H04R5/04 , H04S7/301
摘要： A method for determining an audio precompensation controller for an associated sound generating system comprising a total of N≧2 loudspeakers, each having a loudspeaker input. The audio precompensation controller has a number L≧2 inputs for L input signal(s) and N outputs for N controller output signals, one to each loudspeaker. It is relevant to: estimate (S1), for each one of at least a subset of the N loudspeaker inputs, an impulse response at each measurement position; specify (S2), for each one of the L input signal(s), a selected one of the N loudspeakers as a primary loudspeaker and optionally a selected subset S including at least one of the N loudspeakers as support loudspeaker(s); select (S2) at least one loudspeaker pair, that is required to be symmetrical with respect to the listing position; and specify (S3), for each primary loudspeaker, a target impulse response at each measurement position.
摘要翻译：一种用于确定用于相关联的声音产生系统的音频预补偿控制器的方法，包括总共具有扬声器输入的N≥2个扬声器。音频预补偿控制器具有L个输入信号的L≥2个输入和N个控制器输出信号的N个输出，每个扬声器一个。这涉及：估计（S1）对于N个扬声器输入的至少一个子集中的每一个，在每个测量位置处的脉冲响应; 为所述L个输入信号中的每一个指定（S2），所述N个扬声器中的所选择的一个作为主扬声器，以及可选地包括所述N个扬声器中的至少一个作为支持扬声器的选定子集S; 选择（S2）至少一个扬声器对，其要求相对于列表位置对称; 并且为每个主扬声器指定（S3）在每个测量位置处的目标脉冲响应。

3. 发明授权

US09426600B2 Audio precompensation controller design with pairwise loudspeaker channel similarity 有权
标题翻译：音频预补偿控制器设计与成对扬声器通道相似
公开(公告)号：US09426600B2
公开(公告)日：2016-08-23
申请号：US14402900
申请日：2013-06-20
申请人： DIRAC RESEARCH AB
发明人： Adrian Bahne , Lars-Johan Brannmark , Anders Ahlen
IPC分类号： H04S7/00 , H04R3/04 , H04R5/04 , H04R3/12
CPC分类号： H04S7/307 , H04R3/04 , H04R3/12 , H04R5/04 , H04S7/301
摘要： A method for determining an audio precompensation controller for an associated sound generating system comprising a total of N≧2 loudspeakers, each having a loudspeaker input. The audio precompensation controller has a number L≧2 inputs for L input signal(s) and N outputs for N controller output signals, one to each loudspeaker. It is relevant to: estimate (S1), for each one of at least a subset of the N loudspeaker inputs, an impulse response at each measurement position; specify (S2), for each one of the L input signal(s), a selected one of the N loudspeakers as a primary loudspeaker and optionally a selected subset S including at least one of the N loudspeakers as support loudspeaker(s); select (S2) at least one loudspeaker pair, that is required to be symmetrical with respect to the listing position; and specify (S3), for each primary loudspeaker, a target impulse response at each measurement position.
摘要翻译：一种用于确定用于相关联的声音产生系统的音频预补偿控制器的方法，包括总共具有扬声器输入的N≥2个扬声器。音频预补偿控制器具有L个输入信号的L≥2个输入和N个控制器输出信号的N个输出，每个扬声器一个。这涉及：估计（S1）对于N个扬声器输入的至少一个子集中的每一个，在每个测量位置处的脉冲响应; 为所述L个输入信号中的每一个指定（S2），所述N个扬声器中的所选择的一个作为主扬声器，以及可选地包括所述N个扬声器中的至少一个作为支持扬声器的选定子集S; 选择（S2）至少一个扬声器对，其要求相对于列表位置对称; 并且为每个主扬声器指定（S3）在每个测量位置处的目标脉冲响应。

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