oldguy Posted February 13, 2011 Posted February 13, 2011 If you ever want to sound proof a ball mill cabinet, or whatever other space big or small. A big thumbs up to Acoustiblok. Spendy but amazing sound dampening. 1/8th inch thick = or better than 1 ft of solid concrete http://www.acoustiblok.com/products.php
NightHawkInLight Posted February 13, 2011 Posted February 13, 2011 Really cool stuff, I would love to line a room with it. Unfortunately a surefire way to tell I can't afford something is if I need to call to get a price.
oldguy Posted February 13, 2011 Author Posted February 13, 2011 Price will make your eyes pop wide & it's tough to find small order amounts.A few years back I scavenged a few 150 ft X 54 inch rolls that were excess/surplus off a job site free.It took a dolly to move each & a lift gate to load them. Each roll was HEAVY . Not sure what it consists of, but its heavy like lead, but very pliable.If you wanted enough to do a ball mill cabinet or something fairly small gratis (except shipping), shoot a pm at me.
NightHawkInLight Posted February 13, 2011 Posted February 13, 2011 Yeah it's incredible how expensive sheet rubber of any kind is, let alone if it had a specialized purpose like that. I appreciate the offer. I really don't have a need to soundproof a ball mill to that extreme, but one of these years if you've still got the stuff and are looking for a buyer I may take the bulk of it to soundproof a studio. Pipe dream that one is.
dagabu Posted February 14, 2011 Posted February 14, 2011 We sound proofed a room last year and hired a spray on rubber applier to do the job. It was 1/6 the price of matting or foam. I did use foam in the corners for bass traps though.
NightHawkInLight Posted February 14, 2011 Posted February 14, 2011 (edited) We sound proofed a room last year and hired a spray on rubber applier to do the job. It was 1/6 the price of matting or foam. I did use foam in the corners for bass traps though.Good tip. Some of that spray on rubber is really nice stuff. I remember seeing video about a spray on rubber that is used to coat concrete walls in government buildings to decrease explosive damage. The video tests were extremely impressive. If I find them again I'll post them here. EDIT: Found it: http://www.linex.com/pages/2010/military/ I can't find the good video footage of the blast tests I was watching before though. Edited February 14, 2011 by NightHawkInLight
DasSchaben Posted February 15, 2011 Posted February 15, 2011 If I wanted to soundproof a room or a recording studio, I'd go for drywall and Green Glue and rearrange things to avoid sound flanking. For a ball mill cabinet, Acoustiblok looks reasonable. How well does it absorb lower frequency noise/vibration? Last summer, I asked for a quote on something like 60 square feet of MLV (mass loaded vinyl). Only one guy was willing to ship to Canada if I could drive almost to the border. Between the weight and the shipping cost, I had to say no.
dagabu Posted February 15, 2011 Posted February 15, 2011 No, our recording room is 100% covered with 8" egg crate and is a room within a room sitting on four isolation blocks. It has 4 decibels total sound output. In a concrete room, spray on sound deadening and egg crates in the corner is a great way to scavenge space and reduce the reflection.
NightHawkInLight Posted February 15, 2011 Posted February 15, 2011 (edited) A professional sound studio I helped build used two layers of drywall supported by Z channel, one layer half inch and the other 3/8" oriented the opposite way to cover all spaces. The two thicknesses of drywall were used to deaden their respective resonant frequencies. It unfortunately was about 90% complete when the downright criminal city board stepped in without prior notice threatening to seize the building because the taxes (which they were exempt from as a 501c3) had not been payed. Having been informed of the overdue taxes past the legal date for which they could dispute the claim they were forced to uproot. Anyway, that's beyond the budget and time dedication most people can afford for a home studio. In my opinion you can make plenty fine recordings with blankets hanging on the walls as long as the furnace and air conditioning is off. Certainly good enough that 99% of people on the street couldn't tell they were recorded in a basement rather than a studio, provided quality recording equipment is used. Here's a great example:http://www.youtube.com/watch?v=ZwXGGfcyHvc I could be biased in what I think is a quality recording since many of my favorite songs are old scratchy blues. Having said all that sure doesn't mean I wouldn't like a studio I could sleep through a bomb raid in, and when that's my current project I'll probably do my best to make it happen. I don't know who I'm telling all this to. Half the time I think I make posts just to get the debate going on in my head into readable format. Edited February 15, 2011 by NightHawkInLight
optimus Posted February 15, 2011 Posted February 15, 2011 I don't know who I'm telling all this to. Half the time I think I make posts just to get the debate going on in my head into readable format. I'm listening : ) Just finished treating my studio, all DIY traps, complete with giant experimental styrofoam diffuser. Was a fun project, if a tad time-consuming! To be honest I'm not sure whether the diffuser was a complete waste of time or not, but it certainly looks impressive. I'll upload pics if anyone's interested. The traps sure do make a difference though - about to start recording so we'll see I guess.
NightHawkInLight Posted February 15, 2011 Posted February 15, 2011 I would very much like to see some pictures. I would like to hear your results even more.
DasSchaben Posted February 16, 2011 Posted February 16, 2011 I'm listening. I drew blueprints for a basic DIY studio last summer, but I didn't like the idea that I couldn't unmount the drywall. I ended up breaking the lease, so that wasn't a bad decision. Optimus, I'll second what NightHawkInLight said. Pictures would be cool, if you have them. No, our recording room is 100% covered with 8" egg crate and is a room within a room sitting on four isolation blocks. It has 4 decibels total sound output. Could I ask how you finished the ceiling? Acoustic tile?
MadMax Posted March 11, 2011 Posted March 11, 2011 I've heard of kids with garage bands putting carpet on the walls and ceiling of a basement so they can jam and not bother the neighborhood. Maybe you could construct a wooden box with 1 open end that could be put over top of the ball mill. In the past when i was ball milling and wanted to reduce the noise I just took a plastic laundry crate over it and threw a blanket over that with the sides tucked under the edges of the crate. It was kind of ghetto but it worked.
Peret Posted March 12, 2011 Posted March 12, 2011 Carpet, tiles and egg cartons absorb high frequency reflections and make a room acoustically "dead", but they won't sound proof it. To keep external sound out (or internal sound in) there's no substitute for mass. Lead sheathing or that heavy rubbery stuff Oldguy was talking about is what you need for that.
dagabu Posted March 12, 2011 Posted March 12, 2011 Energy passes through mass with little loss such as the recent Tsunami across the ocean. In this case the mass absorbs the frequencies but at a high cost of weight and price. Sound proofing can just as easily be achieved with isolation and dead air spaces for a fraction of the price. Wenger built isolation rooms are simple box in a box in a box construction. All layers are isolated and have dead air between them. Two double 5/8" insulated sheetrock walls separated by 12" of encapsulated dead air with no gaps is realistic, 2" of lead lining is not.
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