Void transmission (mysterious voice transmission)

Sound transmission in an empty valley, as the name implies, is sound transmission in an empty valley. This phenomenon was also used as a means of military communication in ancient times, but now it has become an interesting game and adventure. In some tourist attractions, there will also be a special empty valley sound transmission area for tourists to experience.

How to transmit sound in an empty valley?

First, look for an empty valley or canyon. It should be noted here that the deeper and steeper the valley, the better the sound effect will be. At the same time, it should be avoided in windy weather, because the wind will interfere with the spread of sound.

Next, we need to find a suitable location. Generally speaking, you should choose a place far away from both sides of the valley, so that the sound can spread better. At the same time, pay attention to stand on the stable ground to avoid accidents.

Next, start transmitting sound. The easiest way is to shout out a word or phrase, such as "hello". When the sound propagates in the valley, you will find that the sound will rebound at the bottom of the valley and return to the other side. This echo effect is very interesting, and people can feel their voices echoing in the valley.

Empty valley sound transmission principle

The principle of hollow sound transmission is actually very simple, that is, using the characteristics of different propagation speeds of sound waves in different media. The speed of sound wave propagation in air is about 340 m/s, and that in water is about 1500 m/s ... When sound wave meets the boundary of medium, it will be reflected, refracted and propagated, which will lead to the change of sound propagation direction.

In the valley, sound waves will be constantly reflected and refracted, thus forming an echo effect. When the sound wave reaches the lowest point of the valley bottom, total reflection will occur, thus reflecting the sound wave back. This phenomenon is the principle of empty valley sound transmission.

The fun of empty valley sound transmission

Sound transmission in the empty valley is not only an interesting adventure, but also a great pleasure. In the valley, you can shout out your name, sing or laugh loudly and enjoy the wonderful feeling brought by the echo. At the same time, you can also play with friends and create various interesting effects with different sounds and rhythms.

final result

Void communication, a mysterious sound transmission phenomenon, not only makes people feel the wonder of nature, but also brings infinite fun. If you haven't tried to transmit sound in an empty valley, you might as well find an empty valley and feel this wonderful sound.