Microphone for cancelling low pass noise

摘要

Provided is a microphone for cancelling low-pass noise capable of attenuating a low band of sound waves. The microphone for cancelling low-pass noise includes: a sound signal receiving unit for receiving a sound signal; a signal processing unit for processing the sound signal from the sound signal receiving unit and a sound signal delayed for a predetermined time by a diaphragm; a converting unit for converting the sound signal processed by the signal processing unit into an electrical signal; an amplifying unit for amplifying the electrical signal from the converting unit; a power supply unit for supplying an external bias power to the amplifying unit to drive the amplifying unit; and an output unit for outputting the electrical signal amplified by the amplifying unit.