The condenser microphone, or capacitor microphone or electrostatic microphone is a device which converting from sound energy into electrical energy. It’s working as a parallel plate capacitor and works on the principle of a variable capacitance. It consists of two plates, one fixed (called the back plate) and the other moveable (called Diaphragm) with a small gap between them. An electric potential charges the plate. When sound strikes the diaphragm it starts moving, thereby changing the capacitance between the plates which in turn results in a variable electric current to flow

Features of Condenser Microphone:

• Small in size.
• Low cost.
• Easy to use.
• Light in weight.

Applications of Condenser Microphone:

• It is used in Amplifier.
• It is used in Clap switch project.
• It is used in sound recognition module.