Condenser microphone

A condenser microphone comprising:

• a plurality of condenser microphone units each including a fixed electrode and a diaphragm disposed to oppose the fixed electrode;
• and
• an impedance converter, wherein
• the condenser microphone units are connected in series to be added in phase and output audio signals obtained from the condenser microphone units,
• at least one of the preceding condenser microphone units, excepting a last condenser microphone unit, and an adjacent succeeding condenser microphone unit are directly connected to each other to transmit an audio signal obtained from the at least one of the preceding condenser microphone units to the adjacent succeeding condenser microphone unit,
• the impedance converter using an active element is connected to the last condenser microphone unit, and
• the audio signals obtained from the condenser microphone units are added and output from the impedance converter using the active element.