| 摘要 |
The present invention relates to a microphone capable of measuring a voice direction. The microphone capable of measuring a voice direction comprises: a vibration generating unit including a plate member, a hinge portion, a first lattice portion; and a case portion. The plate member has a hole through which a fluid can flows on the outer surface and vibrates but is flexible by receiving a sound wave from the outside. The hinge portion protrudes from both sides of a central part of the plate member to the outside and works as a rotary shaft, but can be twisted upon vibration of the plate member. The first lattice portion is prepared on the end portion of the plate member and the position of the first lattice portion is changed in accordance with the vibration of the plate member. The case portion has a groove portion into which the vibration generating unit is inserted and includes a second lattice portion which is prepared to interlock with the first lattice portion and the position of the second lattice portion is fixed. A fluid layer is formed between the vibration generating unit and the case portion and the fluid existing on the fluid layer flows through the hole upon vibration of the plate member, thereby reducing the vibration of the plate member. According to the present invention, it is possible to miniaturize a size of the microphone and stably measure the voice direction. |
