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Post by kcatthedog on Dec 18, 2016 20:04:31 GMT -6
Although I have tested and treated my room (10x20x7.5 feet), (first/second reflection points, corner bass traps, clouds and back wall), I have struggled with the lower mids and bass clarity through a variety of very good monitors. I have used room eq wizard and sent diagrams to aurelex etc.. I remembered today how two of companies recommended some diffusion about 2/3rd down the long wall to deal with a room node. Today I brought in a 4x5 x 1 book case and put it 2/3rds down along my left hand wall and filled the top 2 shelves with different sized books with the pages all facing out and very deliberately set very different pronounced depths (wells) with all books, obviously to act like a diffuser and absorber. I also moved 1 2x4 by 4 inch absorber from the same position on the vertical plane back down the wall aboutt 2 feet and put it on the horizontal at about 2-4 feet up the wall below a high window I just played the session I was working on this morning and it seemed to sound noticeably clearer, more top end and soundstage and the bass more distinct and clearer. Were my ears just playing tricks on me, placebo effect or in a treated room, if you tame one main node, will it have this pronounced effect ? No question for me, its the best the room has sounded in 5 years of work. Of course , I have had the book case in the garage the whole friggin time
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Post by javamad on Dec 19, 2016 3:42:13 GMT -6
Hi, This online room mode calculator has some great info. amroc.andymel.eu/?l=20&w=10&h=7.5&ft=true&re=ITU%20listening%20room and a great visual display of where the modes build up. With a 10 x 20 ft room, you are going to have problems due to having multiples in your dimensions. I'd say get more book cases/bass trapping in there. Also, if you haven't already, try spacing your broadband absorbers a couple of inches off the walls, that lowers their effective frequency and will get more low-mids for you.
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Post by kcatthedog on Dec 19, 2016 5:04:19 GMT -6
Thx , yes I have seen this before. I do have my 4x8 panels about 3 inches off the wall for that reason. Over Christmas I am going to turn my big back wall back panel 5'x6'x4'' , into a helmholtz resonator ( there's a calculator on the PT Xperts site) and probably bring it forward so it has more depth too .
When my drummer comes over he sets up in the back so its good to really control all that energy.
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Post by Ward on Dec 19, 2016 6:20:46 GMT -6
Are you looking for a cheap solution??
Get 4 old rugs, roll them up tightly and put them along the floor/wall joints of them room. Problem solved.
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Post by kcatthedog on Dec 19, 2016 8:25:33 GMT -6
Good idea: thx !
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Post by EmRR on Dec 19, 2016 20:02:15 GMT -6
I have a retired futon jammed under the client couch, against the floor and the wall behind it. Nice heavy porous mass.
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ericn
Temp
Balance Engineer
Posts: 14,978
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Post by ericn on Dec 19, 2016 20:33:27 GMT -6
I had a 175 lbs Golden Retrevier/ Great Peryanees mix we called the walking bass trap!
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Post by mrholmes on Dec 20, 2016 19:15:16 GMT -6
Please measuure again at your monitoring position and post it ... otherwise all advises are useless talk. No offending but I learned it the hard way in my DIY rooms....
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Post by cowboycoalminer on Dec 21, 2016 7:10:40 GMT -6
Are you looking for a cheap solution?? Get 4 old rugs, roll them up tightly and put them along the floor/wall joints of them room. Problem solved. I also find it helps to keep a messy mixing room filled with empty boxes, piles of charts and lyric sheets lying around, guitar cases opened etc. At least that's what I tell myself on a regular basis
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Post by Ward on Dec 21, 2016 7:12:43 GMT -6
Are you looking for a cheap solution?? Get 4 old rugs, roll them up tightly and put them along the floor/wall joints of them room. Problem solved. I also find it helps to keep a messy mixing room filled with empty boxes, piles of charts and lyric sheets lying around, guitar cases opened etc. At least that's what I tell myself on a regular basis That's what I tell the woman, too! "All this mess and clutter everywhere, you're going to have mice or rats in here... and did you know, Ward, that earwigs and centipedes love cardboard?" she says to me... I just nod and wait for her to stop.
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Post by kcatthedog on Dec 21, 2016 7:40:52 GMT -6
ah, one of the benefits of being a separated gear/recording head is ,,,,,
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ericn
Temp
Balance Engineer
Posts: 14,978
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Post by ericn on Dec 22, 2016 18:11:35 GMT -6
ah, one of the benefits of being a separated gear/recording head is ,,,,, Lack of Good head?
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Post by kcatthedog on Dec 22, 2016 18:41:55 GMT -6
Discretion is, the better part of valour !
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Post by Ward on Dec 23, 2016 8:01:21 GMT -6
ah, one of the benefits of being a separated gear/recording head is ,,,,, Lack of Good head? "separated" indicates previously married or seriously coupled. when that happens, good head usually stops anyhow. So, perhaps Kcat can finally experience good head again. BA DUM PISH
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Post by ChaseUTB on Dec 23, 2016 14:10:04 GMT -6
Yuge difference between good and great head... I am a connoisseur of the latter....
Slob on my knob like corn on da cob..check in with me and do your job, Lay on the bed and gimme head... don't have to ask and I don't have to beg ... 😭
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Post by kcatthedog on Dec 23, 2016 14:18:27 GMT -6
What happened to my tame little prosaic thread about boring room nodes ?
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Post by mrholmes on Dec 23, 2016 15:06:07 GMT -6
Are you looking for a cheap solution?? Get 4 old rugs, roll them up tightly and put them along the floor/wall joints of them room. Problem solved. If you don't know the center frequency I doubt that your rug method works well. In my experience all pressure depended methods are NG for DIY. But this one works always in all rooms if money is not there....
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Post by kcatthedog on Dec 23, 2016 15:23:57 GMT -6
Can you describe this ? When I click on the pic it goes to a war gaming site ?
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Post by M57 on Dec 23, 2016 15:34:28 GMT -6
Can you describe this ? When I click on the pic it goes to a war gaming site ? ..or worse. It opened up a number of windows that smelled of virus.
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Post by gouge on Dec 23, 2016 15:41:15 GMT -6
Are you looking for a cheap solution?? Get 4 old rugs, roll them up tightly and put them along the floor/wall joints of them room. Problem solved. If you don't know the center frequency I doubt that your rug method works well. In my experience all pressure depended methods are NG for DIY. But this one works always in all rooms if money is not there.... a rolled up rug is not a pressure based trap it is a velocity based trap. the rug method works well enough, as does a couch. another method is to buy a roll of insulation and just stand it in the corner still wrapped up.
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Post by kcatthedog on Dec 23, 2016 16:02:29 GMT -6
I did get a virus phishing so I shut down quickly and all seems to be good.
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Post by kcatthedog on Dec 23, 2016 16:07:40 GMT -6
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Post by mdmitch2 on Dec 23, 2016 16:09:47 GMT -6
I usually just get room eq wizard running in real time, then start moving panels and furniture around until it looks better. You can also try moving your speakers closer to the wall to raise* the frequency of the nulls. Lots of good, simple ideas in this article too: www.weslachot.com/pub34.html
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Post by kcatthedog on Dec 23, 2016 16:23:41 GMT -6
mdmitch moving speakers closer to the walls you mean side walls or back wall (behind them) ? This seems counter intuitive as I would have thought bass response would be increased ?
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Post by mrholmes on Dec 23, 2016 16:24:33 GMT -6
I just can tell you from my experience that all preassure or velocity based traps are very time consuming to build and you need to meaussure where to place them. Thats at least my experince and thats why I advise to go with broadband absorption as shown in my picture, it does not need to be a moving card box you can build something with wood. I still own three 500 liter Helmholtz Resonators from my old treatment, they are useless in my new room. I went for the base in all corners with massive rockwool, that solved all the heavy base modes. Is it perfect? No but I have never heard that someone got the base range perfect under controll. When your work is done you find something thats not perfect.... its at least my experience And sorry in my first post I mixed up velocity and preasure based traps....
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