Скачать или смотреть Echo and Reverb [Discover the difference]

When we talk about acoustic problems related to internal environments we talk about echo or reverberation almost as if they were the same thing, they are similar, but they are two different phenomena.
Echo is a phenomenon produced by the reflection of sound waves against a distant obstacle which are perceived again by the person who emitted them

For example, when we go to the mountains and shout our name, we will most likely hear the echo of the waves that will hit another mountain and will come back with a certain delay compared to the initial sound.

If ideally there was only a mountain 340 meters away in front of us and we shouted our name, we would hear the repetition of the name about 2 seconds later since the sound goes at a speed of about 340 meters per second.

So one second to reach the mountain and another second to go back.

Reverberation consists in the permanence of the sound wave in the environment, even after the sound source has stopped emitting it.

Reverberation, for example, is what you can hear from the reflection of sound waves on the walls in an empty room.

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