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Is this necessary ?

This article may do more harm than good. It describes a damped Helmholtz resonator which does not rely on "sound absorbing material "

Between two outer walls sound absorbing material is inserted and the wall is porous.

They work perfectly with perforated steel and air behind, or concrete and expanded polystyrene . Study on Cementitious Sound Absorber with Expanded Polystyrene Waste as Aggregate.

The illustration looks more like a diffuser than an absorber. Maybe the slots between the boards are open to a cavity beheind to form a Helmholtz resonator ? But this article is about the board, not the slot ...

Helmholtz cavity boards inside loudspeakers ? - citation needed !

Either way it's more confusing than helpful ! I doubt whether the author of this article understands it. Links are a bit random, too.

Redirect to Gobo (recording) ?

-- 195.137.93.171 ( talk) 04:19, 24 September 2010 (UTC) reply

This page is inaccurate

If someone can change the Title to "Acoustic Panel" Or "Acoustic Diffuser" I can update. Acoustic Board doesnt exist, Sound Board is a product this person mkay have used when creating this page, there is no reference to "Acoustic Board" for use in Soundproofing. 36N63 ( talk) 05:55, 14 February 2020 (UTC) — Preceding unsigned comment added by 36N63 ( talkcontribs) 00:08, 14 February 2020 (UTC) reply

Page needs to be deleted

Nothing is truthful about this page. "Dictionary of architectural and building technology" 1998 Cite is out of date. It is a product that home depot used to carry, its hard to find now. 36N63 ( talk) 06:44, 14 February 2020 (UTC) reply