It is an artifact that produces noise, there are many types of speakers, in which they basically differ is in the sound they emit, from here, they are given a particular use. The conception of a horn is prehistoric, the fundamental idea of these is that with the sound they produce, people are alerted to an event that will occur soon. There are many references to life-saving horns in contemporary history, for example horns and loudspeakers that alerted people in WWII that a bomber plane was approaching or some attack on the base.
Speakers generally have a conical shape, like that of a trumpet, this is because the conical shape of the surface improves the flow of the sound wave produced by the speaker. This sound wave is produced by the air that passes through sheets at angles placed in that position so that the friction produces a noise. Let's review the main types of speakers that we see every day on the street:
- The instrument with which vehicles request passage or alert in the event of proximity of a blunt object. Also known as a cornet or horn.
- It is called a horn, the telephone receiver, where the person on the other side is heard
- There are horns that are constituted by a mechanism that contains a cylinder filled with pressurized air, which when released through a trumpet-shaped mouthpiece, produces a high-pitched sound, they are generally used to
animate sporting or cultural events
- In many sports activities, in addition to the popular shooting, a horn is also used to signal the exit of the competitors.
- In companies in which personnel change is made per shift, they are notified of the end of the shift and the beginning of the next through the sound emitted by a horn.
- The horns that brought the first vehicles that went on sale in the world, consisted of a horn with a rubber bulb on the tip, which when pressed expelled the necessary air for the sound to be emitted through the cone.
