What is a microphone?

Recording sound input device

Microphone
A microphone is a device that converts sound into electrical signals. Microphones are used in many devices such as telephones, hearing aids, radio and television broadcasts, and many other applications. In essence, it is not really a kind of "musical instrument", it's just simple to pick up and transmit sound devices...but after I use a month's time tested Rode K2, I find, microphone should be one of the important tools in our studio
Microphones dating back the 19th century, several scientists committed to finding better ways to pick up the sound to be used to improve the then latest invention - Tel. The microphone based with carbon was proved to be useful- but not the best!

Soon it was discovered that carbon microphone noise is too loud, it can not be used with music recordings, so it need improve. These improvements include the use of flexible double lock, to avoid the process of using carbon microphone friction between the noise -By the way, These things happened in 1921 or so! This microphone once occupy the heart of the broadcast industry, this situation continued until 1931. Twentieth century, a large number of new microphone technology gradually developed, including tubes, aluminum, transistors, moving coil, and so new technology, including of course we say today, tube (or tubes) microphone. For more information see here: studio microphone