acoustimetal perforated metal panels?

Started by Gunner on 12 January 2011. 3 replies.

Originally posted at johnlsayers.com, topic 15486.

Gunner12 January 2011#1

hi fellas- anyone have any experience with this or similar? http://www.acousticalsurfaces.com/acous ... imetal.htm according to the attached charts one of these panels with 1 inch backing has similar a NRC as 2" 703, just slightly less mids and much better bass.

Image not preserved: acoustimetal NRC.jpg

Image not preserved: owens corning NRC.jpg

gullfo12 January 2011#2

perforated metal panels are very much useful and have some nice aesthetics in the right situation. you can couple those with Chris Whealy's exceptional Porous Absorber calculator to find the proper perforation ratio and sizing.

John Sayers13 January 2011#3

They are very useful in high traffic areas in public buildings etc. I wish architects used them more than they do as I find public buildings have dreadful acoustics.

AVare13 January 2011#4

gullfo wrote:
perforated metal panels are very much useful and have some nice aesthetics in the right situation. you can couple those with Chris Whealy's exceptional Porous Absorber calculator to find the proper perforation ratio and sizing.

+1. For some in depth application calcuations and background, there is Schultz's great The Acoustical Uses for Perforated Metal. Andre