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A comprehensive drum screen was added to U2's performance at The Sphere. Tris Imboden using a simple drum screen. A drum screen, sometimes referred to as a drum shield or acoustic shield, is a tool used by audio engineers to avoid the sound control problems caused when louder instruments overwhelm quieter instruments and vocals on stage.
The goal of a sound absorber is to convert acoustical energy into heat. In a traditional absorber, the sound wave propagates into the absorber. Because of the proximity of the porous material, the oscillating air molecules inside the absorber lose their acoustical energy due to friction. A MPP works in almost the same way.
An acoustic board is a board made from sound absorbing materials, designed to provide sound insulation. [3] [4] Between two outer walls sound absorbing material is inserted and the wall is porous. Thus, when sound passes through an acoustic board, the intensity of sound is decreased. The loss of sound energy is balanced by producing heat energy.
Although acoustic panels are common in basements or recreational areas, they are seldom used in living spaces due to aesthetic reasons. Instead, conventional plaster or drywall systems were more frequently used in homes and other environments where interior aesthetics is a more important consideration but these are, however, not ideal in sound ...
Gobo panels in a recording studio. Gobo is a sound recording term for a movable acoustic isolation panel. In typical use, a recording engineer might put a gobo between two musicians to increase the isolation of their microphones from each other. The origin of the term "gobo" is obscure, but is most likely short for "go-between".
An acoustic liner is a sandwich panel made by: a porous top layer, called face-sheet; a honeycomb structure providing internal partitions; an impervious layer, called back-sheet or back-skin; The lower half of a liner features dedicated internal slots to allow liquid drainage in order to prevent ice formation or fire hazards.