Drilling Holes in Acoustic Frames-Acoustics Forum-Acoustic Fields Forum

Please consider registering
Guest

Home Acoustics Forum Acoustic Treatment Drilling Holes in Acoustic Frames

Drilling Holes in Acoustic Frames

tjleonard61

Member

Members

Forum Posts: 10

Member Since:
March 11, 2018

Offline

December 29, 2020 - 5:05 pm

I have seen people drill holes in the frames they build for acoustic foam . Typically, several 1 1/4″ holes are spaced on 4″ centers along the perimeter of 1″ x 3″ select pine board. Does anyone know if these air holes help airflow and improve the acoustic performance of the foam mounted in the frame?

Dennis Foley

Chief Acoustics Engineer

Forum Posts: 643

Member Since:
August 12, 2013

Offline

December 30, 2020 - 6:53 am

Nonsense. Its always about surface area coverage. Drilling a few holes will not increase that variable.

tjleonard61

Member

Members

Forum Posts: 10

Member Since:
March 11, 2018

Offline

January 3, 2021 - 9:27 am

I still think adding the holes, although time consuming, labor intensive and may effect frame strength, would slightly increase the surface area of the exposed foam . Similar to the improvements seen when acoustic material is suspended as a cloud. I think it may help, but may cause more problems than its worth. I’ve seen a few guys do it, but after thinking about, it’s definitely not cost effective, so I doubt I’ll try it.