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2. Acoustic plaster - Wikipedia

   en.wikipedia.org/wiki/Acoustic_plaster

   Acoustic plaster is plaster which contains fibres or aggregate so that it absorbs sound. Early plasters contained asbestos , but newer ones consist of a base layer of absorptive substrate panels, which are typically mineral wool , or a non-combustible inorganic blow-glass granulate.

3. Acoustic panel - Wikipedia

   en.wikipedia.org/wiki/Acoustic_panel

   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.

4. Drywall - Wikipedia

   en.wikipedia.org/wiki/Drywall

   Various sized cuts of 1 ⁄ 2 in (13 mm) drywall with tools for maintenance and installation . Drywall (also called plasterboard, dry lining, [1] wallboard, sheet rock, gib board, gypsum board, buster board, turtles board, slap board, custard board, gypsum panel and gyprock) is a panel made of calcium sulfate dihydrate (), with or without additives, typically extruded between thick sheets of ...

5. Architectural acoustics - Wikipedia

   en.wikipedia.org/wiki/Architectural_acoustics

   An anechoic chamber, using acoustic absorption to create a dead space. Interior building surfaces can be constructed of many different materials and finishes. Ideal acoustical panels are those without a face or finish material that interferes with the acoustical infill or substrate. Fabric covered panels are one way to heighten acoustical ...

6. Bass trap - Wikipedia

   en.wikipedia.org/wiki/Bass_trap

   A simple panel resonator can be built to hang on a wall by building a wooden frame, adding several inches of mineral wool to the inside, and fitting a sheet of plywood over the top attached only at the edges. A small gap should be left between the panel and the acoustic insulation so that the panel is free to resonate.

7. Cement board - Wikipedia

   en.wikipedia.org/wiki/Cement_board

   It can be used on the exterior of buildings as a base for exterior plaster systems and sometimes as the finish system itself. Cement board adds impact resistance and strength to the wall surface as compared to water resistant gypsum boards. Cement board is also fabricated in thin sheets with polymer modified cements to allow bending for curved ...