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公开(公告)号：WO1981002502A1
公开(公告)日：1981-09-03
申请号：PCT/GB1981000018
申请日：1981-02-12
Applicant: NAT RES DEV CORP , GERZON M
Inventor： NAT RES DEV CORP
IPC: H04S03/02
CPC classification number: H04S3/02 , H04S2420/11
Abstract: Decoder for feeding an irregular array of m (being three or more) pairs of diametrically opposite loudspeakers, each loudspeaker being disposed at an equal distance r from a common reference point. The decoder incorporates a WXY circuit (10) for producing output signals (W, X, Y and -jW) from the input signals, and shelf filters (12, 14, 16 and 22) and high-pass filters (18, 20 and 24) for producing output signals (W', X', Y' and -jW//c). In addition the decoder includes an amplitude matrix circuit (26) which is such that the sum of the signals (S//c and S//c fed to the loudspeakers of each pair is the same of all pairs of loudspeakers and (FORMULA) where (FORMULA) M being the 2 x m matrix (FORMULA) K being the mx 2 matrix (FORMULA) I being the 2 x 2 identity matrix, and X being a positive real constant which may be frequency dependent. A decoder is also provided for feeding a three-dimensional loudspeaker layout. Thus the outputs of the loudspeakers may be adapted to irregular positioning of the loudspeakers which may be dictated by room geometry.
Abstract translation: 用于馈送m（三个或更多）对直径相对的扬声器的不规则阵列的解码器，每个扬声器以与公共参考点相等的距离r设置。 解码器包括用于从输入信号产生输出信号（W，X，Y和-jW）的WXY电路（10），以及搁板滤波器（12,14,16和22）和高通滤波器（18,20和 24），用于产生输出信号（W'，X'，Y'和-jW // c）。 此外，解码器包括幅度矩阵电路（26），其使得馈送到每对扬声器的信号（S // c和S // c）的总和与所有扬声器对相同，并且（公式） 其中（公式）M是2×m矩阵（公式）K是m×2矩阵（公式），I是2×2单位矩阵，X是可能是频率依赖性的正实常数，解码器还用于 馈送三维扬声器布局，因此扬声器的输出可以适应扬声器的不规则定位，这可以由房间几何形状决定。
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公开(公告)号：DK120075A
公开(公告)日：1975-09-27
申请号：DK120075
申请日：1975-03-21
Applicant: GERZON M A
Inventor： GERZON M A
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