DIY QSF - quick sound field?

gullfo wrote:

timogiodeson - maybe Art means something like this (my guess from the literature and postings)

Thanks for the translation gulfo, Art is definitely easier to understand for me ! wow... I'm definitely jealous!

arthur noxon wrote:

.................. ..................................................................... Yes, they will look at you like you are crazy. You aren't crazy, you are a DIY sound analyzer. Arthur Noxon www.tubetrap.com

Thanks again Mr Noxon, Don't worry I'm talking to walls regularly....:) I went to home depot... and they have quicktube 8" and 10" etc. I cannot explain why... but the 10" diameter inspire me more! I should follow my intuitions and feelings?

Follow your ear Luke Arthur Noxon www.tubetrap.com

Hi I've been reading and thinking about this thread all day long. I have some questions. I am interested in making the easy sonotube version of the tubetraps and I would like to know if putting a small bag of sand would be a good idea to make it more stable? Another question, using the plan mentionned in ths thread the tube will have a hard side and a foam side. If I use it around an instrument or vocal should I put the foam inside or outside? If I want to use the traps around my mixing position, should I place them foam inside or outside? Thanks in advance for all input!

experiment, you have the option...

Hi I am Louis Gagnon a homestudio owner in Alma, Quebec CANADA. I started a DIY Tubetrap project that I would like to share with people on this forum. I used the plan and great instructions provided by mister Noxon. I would like that thank mister Noxon for his super contribution. So here are the pics, I'll post more when the project is complete. (The pictures are in reverse order, sorry)

Here are the other pictures

Hi again here are more pictures of my DIY tubetraps following mister Noxon instuctions. I experienced problems with the glue, it seems that the wax covering of the sonotube caused problems, so there are some that were easily glued and some that I needed to use a stapler. The project will be complete when the fabric covering is installed but I couldn't to make test with them, So I recorded drum tracks with the QSF and I made a DIY AWALL! All comments appreciated!

Here are the 2 final steps to complete the DIY tubetraps, 1st you have to wrap a plastic sleeve around the tube, then slide the fabric over it and then remove the plastic sleeve and Voila! Comments appreciated!

So how does it sound? I wonder if you could explain more about the plastic sleeve. I'm not certain what the need of this step is for, ya know, how it helps or what it does. Looks good to me ;)

I think he meant that the plastic helps you slide the fabric over the tube easily... and when that's done, you can again remove the plastic. But hey, I might be totally wrong here :)

The only fonction of the plastic sleeve is to make the installation of the fabric easy, it is removed when the fabric is in place. I used expandable fabric so I tried to slide it without the plastic sleeve it's impossible. For the sound I never heard a real tubetrap, so I can't compare. I recorded drum tracks with the 13 traps I made sourrounding the drum and I made comparaison. The most obvious difference to me is on the snare. When the tubes were placed with the diffusive side towards the drum the snare is tigher, it has less bottom. With the absobant side towards the drum it is not what I am looking for, too muffled I don't like it. I tried them around the mixing desk and it's great! I can move them around to get what I want. In conclusion, I was looking for acoustic treatment for my studio for a long time and I read all the threads on forum explaining how to make bass traps and absorbers. All these solutions seemed to be appropriate for studios that have a separate control and tracking room, that's not my situation. I was very consious that I could not make the drum or other instrument sound as if they were recorded in Nashville but I would gladly take all the possible improvement. The tubetrap concept attracted me because of it's flexibilty, I can use them to record and I can also use them to create a neutral space for monitoring. I am very happy with the results All comment appreciated

Ok I forgot an important aspect the budget, here are the cost in CANADA SONOTUBES (7X12 feet long) 85 CAD$ MDF 30$ GLUE 30$ High Density Foam 200$ Mineral Wool 100$ Covering Fabric 40$ Sand 20$ Total 505$ It took me about 15 hours to complete this project

lgagnon.rm wrote:

The only fonction of the plastic sleeve is to make the installation of the fabric easy, it is removed when the fabric is in place.

Yes sir, I got that much from it. What I am not getting is what happens under that plastic sleeve? It seems like the material is getting closed into this sleeve...how do you get to this fabric/material under the plastic sleeve? What do you do when you get to it? Maybe I'm over thinking this? EDIT: Aw'ite...heres what I am getting. The sleeve is slid off little by little so as to reveal the material that is then stapled to the tube.

Here is a clarification for the installation of the fabric, I asked my girlfriend to sew a rectangular piece of fabric in the shape of a giant tube, then I need to slide it on the Tubetrap. It's like putting a sock, but I tried to slide the fabric tube directly on the foam it's impossible so I needed to put the plastic sleeve temporairly, I remove the sleeve when the giant fabric tube is in place. I hope I helped you understand

Hello All, I have been really enjoying this thread. I have just relocated to a new room which has a stinky ring around 125hz. I have got some cardboard tubes, so I am also interested in making "sonotube" type designed traps. There seem to be two different design ideas talked about on the thread in relation to the tubes: keeping them either completely solid and airtight or tubes with spaces cut in so that the soundwaves arrive directly at the insulation material...........and from reading the posts, I can't figure out if both of these work or if that is just a matter of opinion. I would prefer to use an itch free alternative to rockwool or fibreglass, so I was thinking of using rolls of thick "needled" felt, which is easy to find here in Brazil (we use it for cheap horse saddle pads, which is where I got the idea). Any comments on the potential acoustic properties of felt would be most welcome. Lgagnon, your setup looks wild with all those tubes. How is it sounding? Best wishes, Briggy