Room tune up clinic

I need your ceiling height.

So, your bass doesn't sound eneven... that's good even tho it's dropping after passing through the archway. That is to be expected.

I briefly looked at the foam you linked and I can't tell too much about it other than it meets some UK fire code which is important. I would suggest a call to the Auralex dealer or company and ask what differences there would be. It will help. The key will be to use 2-4 inches in your mix area and on the ceiling to compensate for the window refelction problem.

By the way, bookcases are very good acoustic treatments for a room.

At the window, the ceiling height is 199cm rising to 222cm at the arch. Where the arch is there is a 17cm step up in the floor. The ceiling in the rear part of the room is level at a height of 223cm.

Dave

http://www.drstudio.demon.co.uk/
"Musicians fall into three categories: those with a physical block, those with a mental block and those with a wooden block". Unfortunately, I'm in the 1st category!

I looked at the mode calculations for your room... nothing exciting except that you don't have any double modes until well above 300 hz. Modes occur at integral multiples of the distance between parallel surfaces... which translates: that the uneven bass response is due to standing waves between walls and the floor and ceiling. Double modes occur when two sets of parallel surfaces such as a pair of walls and the floor/ceiling distances generate some close frequency points.

William

My "studio" is just a fantom and a computer and a buncha software, so, i'll save the time for both of us, Mr.William.
))))



---------------------------------------------------------------
If at first you dont suceed, then skydiving is definitively not for you.

Thanks William.

)

Dave

http://www.drstudio.demon.co.uk/
"Musicians fall into three categories: those with a physical block, those with a mental block and those with a wooden block". Unfortunately, I'm in the 1st category!

Let me know how you make out. I would get some 2" and some 4" if they have it. Sometimes it's difficult to get the 4" but in your case it would be worth it. Try the 4" on the archway walls. Make sure you put some behind the speakers. Beginning at 500 Hz or so, speakers begin to radiate sound uniformly around them. Above 500 they progressively become more directional until at 5000 they begin to "beam" in an ever narrower path as the freqs go up. At 10K, the beam is very narrow making off axis listening problematical.

You may want to treat the opposite wall to the window even tho its in the other room... it could help. The 30% drop out won't be too affected by the treatment but your mixes will be easier to get right. Also, some Sony pro headphones to compare your mixes would help.

William

Are you just using headphones? If you have speakers and a room... there may be some ways of improving your listening pleasure : ))

William

I appreciate your help, Mr.Wills (can i call u that? william is too long, just like my name )

Yeah i use speakers. Got them in garage sales for 5 bucks.



---------------------------------------------------------------
If at first you dont suceed, then skydiving is definitively not for you.

If the room you're listening in has hard surfaced walls it can affect the sound even if you are listening at close range. you can make your own sound boards (instead of using foam) by simply getting scraps from air conditioning installers or anyone else using duct board. Covering them with fabric is not my area of expertise however. But, I've seen where they've been left with the fibreglass exposed (yellow) and it doesn't look too bad and it sounds great. So if you want to tinker with it a bit and probably improve your listening quality post some pics or a drawing of your floor layout and I'll have a look.

BTW... fibreglass is not an environmental problem. I've done a little testing on it myself only to find its a pretty stable media and what little fragments it does shed ...quickly fall to the floor and are not problematical.

William (wills)