MICROPHONE WITH TWO-WAY DIRECTIVITY

摘要

PURPOSE:To prevent howling from occurring when a microphone is used as part of a PA system by performing the circuit connection of a microphone with directivity for low-pitched sound area and a microphone with line type directivity for high-pitched sound area by a network. CONSTITUTION:The microphone 4 with directivity for low-pitched sound area is unified with the microphone 6 with line type directivity for high-pitched sound area by performing the circuit connection of the microphone 4 with directivity for low-pitched sound area and the microphone 65 with line type directivity for high-pitched sound area in which the directivity characteristic of a high-pitched frequency sound part is improved. In other words, directivity from a low-pitched sound area to a high-pitched sound area can be improved by connecting the microphone 4 with sperior directivity from the low-pitched sound area to a middle-pitched sound area to the microphone 6 with line type directivity with sperior directivity for the high-pitched sound area via the high- pass filter 17 of the network. In such a way, it is possible to prevent howling occurrence when the microphone is used as part of the PA system.