| 摘要 |
PURPOSE:To give extradirectivity and improve noise characteristic, by arranging two mikes in the sound source direction at a prescribed interval and by subjecting an output of one mike to pass through a high-pass filter, and the output of the other to the subtraction processing. CONSTITUTION:Unidirectional mikes 1 and 2 are arranged at a prescribed interval with their mike axes toward sound source S. The output which is obtained by causing the output of one mike 1 to pass through high-pass filter 5 and the output of the other mike 2 is subjected to the subtraction processing by subtracting circuit 3, and the result is applied to equalizer 4'. |
