A microphone is a device that converts mechanical energy waves.Speaking into electrical current proportional to the sound waves produced.
Microphones are apart of everyday life.They used in telephones transmitters for commercial radio and television broadcast, amuteur radio, baby monitors .There are many types of different MICROPHONES! A microphone is a device for converting acoustic power into electric power that has essentially similar wave characteristics. Microphones convert sound waves into electrical voltages that are eventually converted back into sound waves thru speakers. They were first used with early telephones and then radio transmitters.
In 1827, Sir Charles Wheatstone was the first person to coin the phrase "microphone."In 1876, Emile Berliner invented the first microphone used as a telephone voice transmitter. At the U.S. Centennial Exposition,Emile Berliner had seen a Bell Company telephone demonstrated and was inspired to find ways to improve the newly inventedtelephone. The Bell Telephone Company was impressed with what the inventor came up with and bought Berliner's microphone patent for $50,000.
The First Microphone
- The first microphone was built by Emile Berliner in 1877. Berliner also built a cordon button microphone in 1876.