One of the most efficient, cost effective and widely used approaches to reduce the tonal signature of aeronautic engine noise is the so-called liners-structures located in the internal walls of the nacelle (the external structure of the motor) that form an acoustic treatment. In the research project called "Silent Aircraft", funded by FINEP and Embraer S.A. and involving some Brazilian universities, including the Federal University of Santa Catarina (UFSC), an extensive study has been conducted to better understand the behavior of such elements, as well as to predict its effect on engine noise.
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Silence is golden, or at least pretty expensive. Commercial recording studios cost hundreds of thousands of dollars to build because they must allow absolutely pelo sound to enter from a usually noisy urban environment.
What I've said so far might seem to imply you can take care of all acoustic problems by making every surface absorptive, completely deadening the room. Actually, such a room is rather unpleasant to work in, but even if it weren't, any attempt to create it would probably be a disaster. The problem is that all absorptive materials are frequency selective. As a general rule, high frequency sound is absorbed more readily than low, so as absorption is added to a room, the reverberation becomes more and more bassy in tone.
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Se você precisa por algumas referências de modo a entender a diferença entre uma acústica boa e ruim, realize o teste das palmas em uma ampla variedade de ambientes multiplos, e perceba quais MODOS tendem a soar melhor.
The fewer walls in common with the rest of the building, the better. Clearly, a house is a better location than an apartment because you don't have to worry as read more much about sound traveling through the ceiling or floor. An here outside corner room away from the street would be a good choice, a basement would be even better.
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Close the door and you can figure what you already have. If the level does not change when you close the door, you know where to start!
O projeto do quarto foca na simplicidade e deixa em destaque a fotografia do casal, que pode ser substituÃda por ilustrações ou obras por arte do sua preferência. O presente mesmo conceito pode ser aplicado de modo a outros objetos.
We can break up flat surfaces by hanging large objects called diffusers. The shapes chosen for diffusers are really a matter of taste and cost. Avoid concave curves, which focus sound instead of dispersing it, read more but otherwise pyramids, lattices, or computer designed random surfaces all work well.
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Truly isolated spaces are created by building a separate room within the room. Both the external room and the internal room have to be tight and heavy and there must be pelo solid connection between the two, not even the floor.
Difusores funcionam espalhando as reflexões, de modo a qual nada esteja preso e este here timbre conterraneo seja preservado.