Megaphone (from other Greek: μέγας, μεγάλη - great, outstanding, and η φωνή - voice) - a portable device for sound amplification using a horn , equipped with a handle for ease of use. Electric megaphones are common, including a directional microphone , an electric amplifier, and a horn speaker .
The word megaphone was coined by Thomas Edison in 1878. Edison's megaphone consisted of two horns connected by a long hollow sound-transmitting tube. In the same year, Werner von Siemens connected the loudspeaker he had invented earlier with a speaker .
The megaphone is used at concerts , public performances of speakers , to manage public events and in other cases.
An electric megaphone can imitate siren sounds to attract attention, as well as have a remote microphone. The electric megaphone can work both from the battery , and from replaceable batteries .
In jargon, a megaphone is often called a “matyugalnik” [1] .
See also
- Aerophone (Edison's invention)
Links
- Megaphone - an article from the Great Soviet Encyclopedia .
- Elektromegafon - article from the Great Soviet Encyclopedia .
Notes
- ↑ Large explanatory dictionary of the Russian language . - 1st ed.: St. Petersburg: Norint, S. A. Kuznetsov. 1998