In fact, both echo and reverberation have to do with the same thing, the time that it takes a sound wave to travel to a surface, bounce and get back to its sender. When the distance travelled by the sound wave is long and it takes more than one tenth of a second, we speak of eco. This is what happens if we yell at a mountain. When the distance is shorter, in halls and auditoriums, and the sound is reflected back in less than a tenth of a second, we are talking about reverberation. That is why very often, when we are discussing the echo a room we are actually referring to the acoustic effect of reverberation.
Does a reverberation problem have a solution? Can you reduce or eliminate echo in a room?
Yes you can.
A room suffers from a high reverberation time because the large smooth surfaces reflect sound. What you must do is to provide such areas with greater acoustic absorption capability, so that the acoustic wave does not bounce back and perceived echo can be removed.
The ideal solution is to carry out an acoustic conditioning with acoustic panels made of sound-absorbent wood in the ceilings and walls of the room (see Spigotec and Spigoacustic), but there is also an option which is sometimes enough, namely incorporating some decoration with acoustic pictures which absorb sound (ver Spigoart) and help eliminate echo of the room.
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