Comments on: Building a broadband absorber (on the cheap) http://www.homebrewedmusic.com/2009/03/06/building-a-broadband-absorber-on-the-cheap/ home recording and acoustic guitars Sat, 04 Feb 2012 22:37:06 +0000 hourly 1 By: L’acoustique du home-studio (7ème et dernière partie) : disposition du studio et des traitements « Le Chant du Signe http://www.homebrewedmusic.com/2009/03/06/building-a-broadband-absorber-on-the-cheap/comment-page-1/#comment-3810 L’acoustique du home-studio (7ème et dernière partie) : disposition du studio et des traitements « Le Chant du Signe Tue, 01 Nov 2011 14:02:52 +0000 http://www.homebrewedmusic.com/?p=155#comment-3810 [...] matériaux nécessaire pour traiter votre pièce. De nombreux tutoriels existent pour en fabriquer. En voici un. Enfin, du mobilier tel que des fauteuils ou des canapés amélioreront sensiblement [...] [...] matériaux nécessaire pour traiter votre pièce. De nombreux tutoriels existent pour en fabriquer. En voici un. Enfin, du mobilier tel que des fauteuils ou des canapés amélioreront sensiblement [...]

]]> By: Fran Guidry http://www.homebrewedmusic.com/2009/03/06/building-a-broadband-absorber-on-the-cheap/comment-page-1/#comment-3773 Fran Guidry Fri, 30 Sep 2011 12:52:00 +0000 http://www.homebrewedmusic.com/?p=155#comment-3773 I don't hang them. My ceiling is 8 feet high, the panels use 4 foot fiberglass, so with the covering they squeeze perfectly into 8 foot space. I put a 4" spacer behind the panels to obtain the air gap advantage. I also lean several of my panels against the wall instead of hanging them. This lets me rearrange them easily, use them as gobos and such when I need to. Fran I don’t hang them. My ceiling is 8 feet high, the panels use 4 foot fiberglass, so with the covering they squeeze perfectly into 8 foot space. I put a 4″ spacer behind the panels to obtain the air gap advantage.

I also lean several of my panels against the wall instead of hanging them. This lets me rearrange them easily, use them as gobos and such when I need to.

Fran

]]> By: nick http://www.homebrewedmusic.com/2009/03/06/building-a-broadband-absorber-on-the-cheap/comment-page-1/#comment-3770 nick Fri, 30 Sep 2011 05:56:53 +0000 http://www.homebrewedmusic.com/?p=155#comment-3770 hi thanks. would love to see how u hang em on the walls hi thanks. would love to see how u hang em on the walls

]]> By: Fran Guidry http://www.homebrewedmusic.com/2009/03/06/building-a-broadband-absorber-on-the-cheap/comment-page-1/#comment-3211 Fran Guidry Fri, 13 May 2011 18:15:56 +0000 http://www.homebrewedmusic.com/?p=155#comment-3211 Hi, Robert, thanks for your comment. Try the Sound on Sound acoustics forum http://www.soundonsound.com/forum/postlist.php?Cat=&Board=DESIGN Gearslutz acoustics: http://www.gearslutz.com/board/studio-building-acoustics/ and the Acoustics Forum: http://forum.studiotips.com/index.php for more brands and types of material. I often read of Rockwool being used by folks outside the US. Fran Hi, Robert, thanks for your comment. Try the Sound on Sound acoustics forum http://www.soundonsound.com/forum/postlist.php?Cat=&Board=DESIGN Gearslutz acoustics: http://www.gearslutz.com/board/studio-building-acoustics/ and the Acoustics Forum: http://forum.studiotips.com/index.php for more brands and types of material. I often read of Rockwool being used by folks outside the US.

Fran

]]> By: Robert http://www.homebrewedmusic.com/2009/03/06/building-a-broadband-absorber-on-the-cheap/comment-page-1/#comment-3210 Robert Fri, 13 May 2011 16:46:47 +0000 http://www.homebrewedmusic.com/?p=155#comment-3210 I'm a relatively new acoustic music home brewer. I've been looking for info on what to do for my recording room. I have done studio work in the past, and I know I need to do something about the space before I invest in any more gear. This blog post is a huge help in that direction. I don't live in the US these days so the brands you mention are not available and I'll have to punt on the materials. I know I've seen compressed fiberglass panels in the home stores around here. I don't recall any that were foil-faced on one side... plastic of some kind, like drop-ceiling tiles. I hope they will work in this application because it's all there is. I saw your other post on how you deploy these things in your space... was wondering about that. Thanks for making this available. I'll be nosing around some more. I’m a relatively new acoustic music home brewer. I’ve been looking for info on what to do for my recording room. I have done studio work in the past, and I know I need to do something about the space before I invest in any more gear. This blog post is a huge help in that direction. I don’t live in the US these days so the brands you mention are not available and I’ll have to punt on the materials. I know I’ve seen compressed fiberglass panels in the home stores around here. I don’t recall any that were foil-faced on one side… plastic of some kind, like drop-ceiling tiles. I hope they will work in this application because it’s all there is. I saw your other post on how you deploy these things in your space… was wondering about that.

Thanks for making this available. I’ll be nosing around some more.

]]> By: Mike http://www.homebrewedmusic.com/2009/03/06/building-a-broadband-absorber-on-the-cheap/comment-page-1/#comment-3207 Mike Tue, 03 May 2011 13:05:18 +0000 http://www.homebrewedmusic.com/?p=155#comment-3207 I have to add that the LockTite spray glue did NOT hold the corners of my panels wrapped in speaker grill cloth. They slowly started popping open, so I hot-glued each corner. It took me 15 minutes. The LockTite seems to be holding the long seams fine- little stress on them there I guess. So now I highly reccommend LockTite on the long seams and hot-glueing the folded corners. I also have to say I LOVE my absorbers and how I can easily discern their efficiency at stopping reflections just by speaking softly while standing under them. You will NOT regret making a few of these!! Hang two or three from the ceiling abutting each other and record instruments and vocals under them. What a difference! I have to add that the LockTite spray glue did NOT hold the corners of my panels wrapped in speaker grill cloth. They slowly started popping open, so I hot-glued each corner. It took me 15 minutes. The LockTite seems to be holding the long seams fine- little stress on them there I guess. So now I highly reccommend LockTite on the long seams and hot-glueing the folded corners.
I also have to say I LOVE my absorbers and how I can easily discern their efficiency at stopping reflections just by speaking softly while standing under them. You will NOT regret making a few of these!! Hang two or three from the ceiling abutting each other and record instruments and vocals under them. What a difference!

]]> By: Fran Guidry http://www.homebrewedmusic.com/2009/03/06/building-a-broadband-absorber-on-the-cheap/comment-page-1/#comment-3205 Fran Guidry Sun, 24 Apr 2011 03:00:13 +0000 http://www.homebrewedmusic.com/?p=155#comment-3205 Wess, no reason at all. It's just a matter of a "breathable" fabric - if you can easily blow air through it the fabric will work well. I used burlap because it was inexpensive. Fran Wess, no reason at all. It’s just a matter of a “breathable” fabric – if you can easily blow air through it the fabric will work well. I used burlap because it was inexpensive.

Fran

]]> By: Wess http://www.homebrewedmusic.com/2009/03/06/building-a-broadband-absorber-on-the-cheap/comment-page-1/#comment-3204 Wess Sat, 23 Apr 2011 21:57:16 +0000 http://www.homebrewedmusic.com/?p=155#comment-3204 Is there Any Specific Reason For using Burlap and not another Fabric? Is there Any Specific Reason For using Burlap and not another Fabric?

]]> By: Fran Guidry http://www.homebrewedmusic.com/2009/03/06/building-a-broadband-absorber-on-the-cheap/comment-page-1/#comment-3169 Fran Guidry Wed, 30 Mar 2011 17:03:27 +0000 http://www.homebrewedmusic.com/?p=155#comment-3169 Hi, Kevin, thanks for stopping by. If the mattress pad is foam, which most of the ones I've seen are, it will not absorb the low frequencies. The cliche "eggcrate foam on the walls" is a recipe for boomy recordings with muted highs, because the foam only absorbs high and mid- high frequencies but lets the lows and mid-lows build up and make your recordings muddy and boomy. As far as I know at this time, the materials that work for absorbers are compressed fiberglass, rockwool, and dense cotton insulation material. Compressed fiberglass has the huge advantage of being stiff enough that no frame is required, so it's possible to build panels much more quickly and cheaply. Unframed panels also weigh less and are easier to place. They just don't look as professional. Fran Hi, Kevin, thanks for stopping by.

If the mattress pad is foam, which most of the ones I’ve seen are, it will not absorb the low frequencies. The cliche “eggcrate foam on the walls” is a recipe for boomy recordings with muted highs, because the foam only absorbs high and mid- high frequencies but lets the lows and mid-lows build up and make your recordings muddy and boomy.

As far as I know at this time, the materials that work for absorbers are compressed fiberglass, rockwool, and dense cotton insulation material. Compressed fiberglass has the huge advantage of being stiff enough that no frame is required, so it’s possible to build panels much more quickly and cheaply. Unframed panels also weigh less and are easier to place. They just don’t look as professional.

Fran

]]> By: Kevin http://www.homebrewedmusic.com/2009/03/06/building-a-broadband-absorber-on-the-cheap/comment-page-1/#comment-3168 Kevin Wed, 30 Mar 2011 16:06:53 +0000 http://www.homebrewedmusic.com/?p=155#comment-3168 What about matress pads? Would this not work as well? You know the pads you put atop a mattress, looks like an egg container? What about matress pads? Would this not work as well? You know the pads you put atop a mattress, looks like an egg container?

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