Acoustic transducer with improved low frequency response

(57) The sound transducer by summary book invention is considered as the composition which has a movable diaphragm in the relative position estranged from a hole vacancy component and its component. And in order to support a diaphragm to a hole vacancy component so that movement is possible, a spring means to connect the hole vacancy component of each other with a diaphragm is established. The slot which balances pressure is prepared around a diaphragm, and while this slot has a function which leaves a support means and separates a diaphragm from the supporting structure, it also has a function which controls the flow of the fluid which passes a diaphragm. In order that a slot may balance the pressure of the both sides of a diaphragm and a slot may set up a low frequency wave response, it is considered as the width between 0.1 and 10micro. A means to cross a hole vacancy component and a diaphragm and to impress an electric field is established, and the output signal which displays change of the capacitance which it is guided to change of the interval between the hole vacancy component which answered the audible signal which entered from this electric field, and a diaphragm, and is produced is produced.