Homemade bass trap for ~125Hz

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viscy

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Not sure if this is the right place to ask this..

My room resonates like crazy between 120 and 130Hz - it's so bad that it gives me headaches. It's a small room and I do some (very, very) amateur recording. Right now I solve the problem with EQ.

Are there any DIY bass traps I can make to solve or at least lessen the problem? As cheap as possible! fibreglass boards is hard to source in this area, sadly.
 
viscy said:
Not sure if this is the right place to ask this..

My room resonates like crazy between 120 and 130Hz - it's so bad that it gives me headaches. It's a small room and I do some (very, very) amateur recording. Right now I solve the problem with EQ.

Are there any DIY bass traps I can make to solve or at least lessen the problem? As cheap as possible! fibreglass boards is hard to source in this area, sadly.
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Normal rolls of insulation works well left rolled up and piled in the corners. For a more professional/tailored absorber, you might want to look into resonating bass traps.
 
viscy,

Basically you need trapping. - Like the rolls of fiberglass in the corners. ~thumbs up~

I seriously doubt that you need targeted resonators and if you trap the room properly you will see an amazing improvement to not only the standing wave problem but also to tighten up the imaging and make translation to the 'real world' possible.

Cheers,
John
 
jhbrandt said:
I seriously doubt that you need targeted resonators and if you trap the room properly you will see an amazing improvement to not only the standing wave problem but also to tighten up the imaging and make translation to the 'real world' possible.
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Completely agree. You don't need tuned traps to fix a 125Hz issue.

Frank
 
Is it possible to have a relatively broadband resonator
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Get married and you'll find out.:laughings:


Actually, if I'm not mistaken, thats what Slot/Slat resonators are SUPPOSED to be...but my disclaimer is in full force here.:)
 
RICK FITZPATRICK said:
Actually, if I'm not mistaken, thats what Slot/Slat resonators are SUPPOSED to be...but my disclaimer is in full force here.:)
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You're right. I supposed what I'm saying is that even slot resonators are not a REQUIREMENT to get the 125Hz range under control. Enough well-built 4" broadband traps will do that admirably.

Frank
 
You're right.
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:eek: You gotta be kidding me. Really?:drunk:
Well I'll be a monkeys unc... ummm, I think I'll stop while I'm ahead.:D(thanks Frank:p)


Enough well-built 4" broadband traps will do that admirably.
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on second thought, I have to add....your right!! And they're a hell of a lot easier to build and cheaper too.;)

Frank, I never really bought into the slat/slot thing myself. Ever used them? I always thought if you wanted to absorb just mids or lows, hell, just cover the traps with a 2 or 3mil plastic film. But what do I know?:) John Sayers built these for years but then again I've read all kinds of Acoustician/Studio designer claims that when exposed to the acoustics community at large kinda divides the auditorium into ...well...pick your school of thought and order a team sweater.:rolleyes::D Now lets throw the other ones in the ring and see who wins...ie... Soffits, splayed walls, Poly vs QRD's, vertical angled monitors, ....ah...lets see...what else..oh yea...Room dimensions/shape...6 leaf vs 2 leaf or whathaveya...heck...kinda makes me wonder why I spent so many years on this stuff. :rolleyes: It doesn't make a damn bit of sense anymore. In fact, from what I've been told...the ONLY think that certifies ANY room....is the clients check. And I'll bet my next social security check theres plenty of them clients who didn't have a clue. Afterall, it only took 20years or so for someone to discover the Hemholtz formula was wrong...I wonder why none of them there clients who bought into acousticians designs that used them..........NEVER HEARD IT?:rolleyes::rolleyes::rolleyes:;)hmmmm, I guess they never read about the Emporers new cloths.Ha!

oh well...enough bla for tonight. :D this old crumudgen's gettin tired. Time for bed.
 
RICK FITZPATRICK said:
:eek: You gotta be kidding me. Really?:drunk:
Well I'll be a monkeys unc... ummm, I think I'll stop while I'm ahead.:D(thanks Frank:p)



on second thought, I have to add....your right!! And they're a hell of a lot easier to build and cheaper too.;)

Frank, I never really bought into the slat/slot thing myself. Ever used them? I always thought if you wanted to absorb just mids or lows, hell, just cover the traps with a 2 or 3mil plastic film. But what do I know?:) John Sayers built these for years but then again I've read all kinds of Acoustician/Studio designer claims that when exposed to the acoustics community at large kinda divides the auditorium into ...well...pick your school of thought and order a team sweater.:rolleyes::D Now lets throw the other ones in the ring and see who wins...ie... Soffits, splayed walls, Poly vs QRD's, vertical angled monitors, ....ah...lets see...what else..oh yea...Room dimensions/shape...6 leaf vs 2 leaf or whathaveya...heck...kinda makes me wonder why I spent so many years on this stuff. :rolleyes: It doesn't make a damn bit of sense anymore. In fact, from what I've been told...the ONLY think that certifies ANY room....is the clients check. And I'll bet my next social security check theres plenty of them clients who didn't have a clue. Afterall, it only took 20years or so for someone to discover the Hemholtz formula was wrong...I wonder why none of them there clients who bought into acousticians designs that used them..........NEVER HEARD IT?:rolleyes::rolleyes::rolleyes:;)hmmmm, I guess they never read about the Emporers new cloths.Ha!

oh well...enough bla for tonight. :D this old crumudgen's gettin tired. Time for bed.
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Good stuff, Rick! G'night you old curmudgeon! :)
 
jhbrandt said:
viscy,

Basically you need trapping. - Like the rolls of fiberglass in the corners. ~thumbs up~

I seriously doubt that you need targeted resonators and if you trap the room properly you will see an amazing improvement to not only the standing wave problem but also to tighten up the imaging and make translation to the 'real world' possible.

Cheers,
John
Click to expand...

Thanks jhbrandt! I'm currently located in Singapore so these materials are pretty hard to come by. Will source around for some fibreglass rolls. I didn't even know they come in rolls, i thought it's a rigid material! haha. I need more experience with this :P I was originally going to install some thick carpeting but I read that it doesn't really help with low frequencies.

Thanks a lot for the replies. Would really help if someone could point me to where to find fiberglass in Singapore, haha.
 
viscy said:
Thanks jhbrandt! I'm currently located in Singapore so these materials are pretty hard to come by. Will source around for some fibreglass rolls. I didn't even know they come in rolls, i thought it's a rigid material! haha. I need more experience with this :P I was originally going to install some thick carpeting but I read that it doesn't really help with low frequencies.

Thanks a lot for the replies. Would really help if someone could point me to where to find fiberglass in Singapore, haha.
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Well fiberglass is just a type of insulation. You can get rigid fiberglass which is what we usually recommend due to its density and acoustical properties, but normal uncompressed insulation (think loft insulation) tightly rolled up will have similar properties.

You can get rockwool in Singapore. You could contact these companies and ask for RW60 or RW45, http://www.eguide.com.sg/SG/SEARCH/rockwool/1
 
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