jhbrandt
Acoustic Design
Kit resonances, and acoustic guitars WILL affect the sweep.
Can you post the .mdat? I like to be able to really LOOK at the data. My brain sees those graphs and says, 'uhmm, yeah - so what.. squiggly lines.. nice..."
Besides, the jpegs get too fussy for me when I zoom, and if I'm not wearing my glasses - Forget IT!
Looking at your room design pdf; The area you are using is VERY small. It is really only large enough for a minimally sized control room - about 1500 cubic feet. You would see an amazing improvement if you were able to turn your setup to the LH wall and take out the dividing wall that is 11' from the wall on the left. Also take out the 8' wall that creates the small 6' deep room. I do not know your structural limitations (Is that center wall load-bearing?) and this may NOT be possible. However, as I see it here, this would be ideal. You need enough space and you need symmetry.
cheers,
John
Can you post the .mdat? I like to be able to really LOOK at the data. My brain sees those graphs and says, 'uhmm, yeah - so what.. squiggly lines.. nice..."
Besides, the jpegs get too fussy for me when I zoom, and if I'm not wearing my glasses - Forget IT!
Looking at your room design pdf; The area you are using is VERY small. It is really only large enough for a minimally sized control room - about 1500 cubic feet. You would see an amazing improvement if you were able to turn your setup to the LH wall and take out the dividing wall that is 11' from the wall on the left. Also take out the 8' wall that creates the small 6' deep room. I do not know your structural limitations (Is that center wall load-bearing?) and this may NOT be possible. However, as I see it here, this would be ideal. You need enough space and you need symmetry.
cheers,
John
Manslick
Road
Thanks John, I moved one of the absorbers to the ceiling above the mixer and built new monitor stands. I took a new measurement at my listening position, I will post the mdat file later when I get home.
The easy option is to move everything to the long room adjacent to the studio, the one that is 29 feet long. But the width would only be 11 feet and I doubt I’d see much improvement.
I like the idea of removing the two partition walls. That would give me a space 15’ x 22.5.’ The center wall is only a partition with a post that supports a main member. very typical ranch house construction.
The easy option is to move everything to the long room adjacent to the studio, the one that is 29 feet long. But the width would only be 11 feet and I doubt I’d see much improvement.
I like the idea of removing the two partition walls. That would give me a space 15’ x 22.5.’ The center wall is only a partition with a post that supports a main member. very typical ranch house construction.
jhbrandt
Acoustic Design
Oh. That's great! Would the post be in the way? Can you indicate on the drawing where the post is? Thanks
Cheers,
John
Cheers,
John
Manslick
Road
Hi John, I can't attach the mdat file, the format is not supported here. I will try to email it to you.
An updated plan of the room is attached.
The post is your typical 4" support post.
Let me know if there's any hope for the room as it is.
Thanks
An updated plan of the room is attached.
The post is your typical 4" support post.
Let me know if there's any hope for the room as it is.
Thanks
jhbrandt
Acoustic Design
See http://jhbrandt.net/ManslickRoom.pdf - This is what I would recommend for optimal use of this space.
Cheers,
John
Cheers,
John
Manslick
Road
Thanks for your time to sketch up the space. That is a major project for me. Logistic problems etc.
But say I do this. Will the use of CMU in the new wall be worth the cost and effort and result in any significant low end inprovement?
But say I do this. Will the use of CMU in the new wall be worth the cost and effort and result in any significant low end inprovement?
jhbrandt
Acoustic Design
In answer to your question; "Will the use of CMU in the new wall be worth the cost and effort and result in any significant low end inprovement?" -
I don't know about CMU.. I would recommend that you MATCH the existing 'north' wall and continue it over as shown in the drawing.
A larger room WITH the correct listening position WILL definitely result in significant low frequency translation and perception. You must treat the room properly. Bass trapping is essential. And finally, do testing with REW or Fuzzmeasure to optimize your listening position and the positions of your speakers.
Cheers,
John
PS. by the way, I use AutoCAD 2014 Building Suite... I don't like Sketchup. It's sort of like Garage Band vs ProTools.
I don't know about CMU.. I would recommend that you MATCH the existing 'north' wall and continue it over as shown in the drawing.
A larger room WITH the correct listening position WILL definitely result in significant low frequency translation and perception. You must treat the room properly. Bass trapping is essential. And finally, do testing with REW or Fuzzmeasure to optimize your listening position and the positions of your speakers.
Cheers,
John
PS. by the way, I use AutoCAD 2014 Building Suite... I don't like Sketchup. It's sort of like Garage Band vs ProTools.
Manslick
Road
I ask about CMU because of something I read in the Master Handbook of Acoustics about CMU being an effective material to absorb low frequency sound waves; something about the mass. I’ll have to revisit that section and probably ask more questions. I figure if I am going to do this I might as well take advantage of every opportunity.
Also, measuring the room is not a problem. I know the drill pretty well after only three tries. But interpreting the results is another rabbit hole. I stared at the help pages last night for two hours trying to understand the section on impulse measurements and went to bed with a headache.
I want to treat the room properly. I don’t want to throw my time and money down the hole hoping for success.
So I read your comment to mean, reconfigure the space, treat it and then measure it.
Would not measuring it first yield a better and more cost effective plan for treatment? For example, how much bass trapping will do the trick?
Thanks again.
PS: I noticed the nice blocks you used for the drums. I used MicroStation XM and just measured and drew everything by hand.
Also, measuring the room is not a problem. I know the drill pretty well after only three tries. But interpreting the results is another rabbit hole. I stared at the help pages last night for two hours trying to understand the section on impulse measurements and went to bed with a headache.
I want to treat the room properly. I don’t want to throw my time and money down the hole hoping for success.
So I read your comment to mean, reconfigure the space, treat it and then measure it.
Would not measuring it first yield a better and more cost effective plan for treatment? For example, how much bass trapping will do the trick?
Thanks again.
PS: I noticed the nice blocks you used for the drums. I used MicroStation XM and just measured and drew everything by hand.