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    • 4. 发明申请
    • FIRST-ORDER LOUDSPEAKER CROSSOVER NETWORK
    • 一键式扬声器CROSSOVER网络
    • WO2005081578A1
    • 2005-09-01
    • PCT/US2004/002698
    • 2004-01-30
    • THOMSON LICENSING S.A.RUMREICH, Mark, Francis
    • RUMREICH, Mark, Francis
    • H04R3/14
    • H04R3/14
    • A first-order crossover network having low-pass and high-pass filters to respectively drive first and second loudspeakers in a loudspeaker system is designed such that the phase difference at a crossover frequency between output signals of the first and second loudspeakers is no greater than 60 degrees, so that the output signals are at least partially in phase. Preferably, the phase difference should be about 40 degrees to create a near in-phase effect. The polarity in which the first loudspeaker is coupled to the first-order crossover network is an inverse of the polarity in which the second loudspeaker is coupled to the crossover network. Optionally, the input signals can be equalized to flatten the magnitude responses of the crossover network.
    • 具有低通滤波器和高通滤波器以分别驱动扬声器系统中的第一和第二扬声器的一级交叉网络被设计成使得第一和第二扬声器的输出信号之间的交叉频率处的相位差不大于 60度,使得输出信号至少部分同相。 优选地,相位差应该是大约40度,以产生接近的同相效应。 第一扬声器耦合到一级交叉网络的极性是第二扬声器耦合到交叉网络的极性的倒数。 可选地,输入信号可以被均衡以平坦化交叉网络的幅度响应。