Liquid Microphones

What is a Liquid Microphone?   A liquid microphone, also known as a water transmitter, is based on Ohm’s law that current in a wire varies inversely with the resistance of the circuit. The sound waves from a human voice cause a diaphragm to vibrate. This...

Electret Microphones

Electret materials have been known since the 1920s and were proposed as condenser microphone elements several times. However, people considered them impractical before the invention of the foil electret tat Bell Laboratories in 1961 by James West and Gerhard Sessler,...

Ribbon Microphone

The history of a ribbon microphone   The first mention of the ribbon microphones dates back to the early 1920s when Drs. Walter H. Schottky and Erwin Gerlach co-invented it. At the same time, they have invented the ribbon speaker by turning the ribbon circuit in...

Dynamic Microphone

What is a Dynamic Microphone?   From the early days of radio and broadcasting, dynamic microphones played a significant role in producing high-quality sound. Dynamic microphones are microphones that convert sound into an electrical signal using electromagnetism....

Condenser Microphone

What is a condenser microphone?   Condenser microphones are generally high-impedance devices which require amplification to be located near the sensor itself. It is not infrequent for the amplifier to limit the dynamic range of such microphones, but ranges of up...