| 摘要 |
PURPOSE: An electric condenser microphone is provided, which comprises an acoustic resistor element and is fabricated with low cost in compact size. CONSTITUTION: A microphone housing has the first sound inflow port and the second sound inflow port separated from the first sound inflow port. A diaphragm(108a) is arranged in the housing, and has the first side and the second side, and the first side is combined to the first sound inflow port acoustically, and the second side is combined to the second sound inflow port acoustically. An acoustic resistor element(118) is arranged between the second sound inflow port and a chamber adjacent to the second side of the diaphragm in the housing, and has a flange part comprising the first side and the second side. The first edge is prolonged between the first plane and the second plane and is combined to the second sound inflow port acoustically. The second edge is prolonged between the first plane and the second plane, and is combined to the chamber acoustically. Sound pressure is transferred from the second sound inflow port to the chamber and from the first edge to the second edge of the sound resistor element through the acoustic resistor element. |
