acoustical treatments
|
Joined: Dec 2006
Posts: 71
old hand
|
OP
old hand
Joined: Dec 2006
Posts: 71 |
i want to build my own, who has built their own and what materials were involved. thanks.
|
|
|
Re: acoustical treatments
|
Joined: Dec 2007
Posts: 7,786
axiomite
|
axiomite
Joined: Dec 2007
Posts: 7,786 |
Depends what you want to do. For trapping, use high density glass (3lb per cu.ft.). Carpet on bare floor at first reflection points. Difusion is a little more complicated.
There are some good articles on treating rooms at audioholics.com.
I gave up on my concrete bunker because I don't have the room and I would need to treat a LOT.
Fred
------- Blujays1: Spending Fred's money one bottle at a time, no two... Oh crap!
|
|
|
Re: acoustical treatments
|
Joined: Jan 2004
Posts: 13,840 Likes: 13
shareholder in the making
|
shareholder in the making
Joined: Jan 2004
Posts: 13,840 Likes: 13 |
me, owens corning 703, pictures on website.
M80s VP180 4xM22ow 4xM3ic EP600 2xEP350 AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85
|
|
|
Re: acoustical treatments
|
Joined: Aug 2006
Posts: 34
enthusiast
|
enthusiast
Joined: Aug 2006
Posts: 34 |
Bweasner,
I'd be interested in knowing the details of the construction. Unfortunately finding Corning 703 in Markham, Canada isn't so easy.
I also went with a red colour on my walls. Are you noticing much difference in the accoustics now that you have your panels up ?
Epson 8700, M80's, VP-150, QS8's, SVS PB13-Ultra, Denon 3310CI
|
|
|
Re: acoustical treatments
|
Joined: Aug 2009
Posts: 71
old hand
|
old hand
Joined: Aug 2009
Posts: 71 |
BIG difference in sound quality. I guess my room is a lot like fredk's...a concrete bunker (laughed out loud at this, never thought of my basement this way ) After I installed all the drywall in the room, the smallest sounds would echo like crazy. Even dropping a drillbit sounded thunderous. Now, I hear no echos or muddiness at all in the theater (except for a litte bit of reverb coming from the untreated stairwell, but I don't think there is anything I can do about this). It is nice to be able to have a conversation in that room (no movie or music playing, of course) and not hear your voice echo at least two or three times.
|
|
|
Re: acoustical treatments
|
Joined: Dec 2006
Posts: 71
old hand
|
OP
old hand
Joined: Dec 2006
Posts: 71 |
great looking panels! simple and inexpensive to build do you think i can get away with shallower ones, say an inch in depth. i prefer a more subtle panel
|
|
|
Re: acoustical treatments
|
Joined: Feb 2009
Posts: 3,466
connoisseur
|
connoisseur
Joined: Feb 2009
Posts: 3,466 |
The thickness of the panel is directly related to the lower frequencies it can trap.
Pioneer PDP-5020FD, Marantz SR6011 Axiom M5HP, VP160HP, QS8 Sony PS4, surround backs -Chris
|
|
|
Re: acoustical treatments
|
Joined: Aug 2009
Posts: 71
old hand
|
old hand
Joined: Aug 2009
Posts: 71 |
The thickness of the panel is directly related to the lower frequencies it can trap. Exactly! I think that the recommended thickness for the lowest frequencies (bass traps) is AT LEAST 4-6" of fiberglass. ClubNeon, do you know?
|
|
|
Re: acoustical treatments
|
Joined: Dec 2006
Posts: 71
old hand
|
OP
old hand
Joined: Dec 2006
Posts: 71 |
is this one of those things that something is better than nothing. i don't think it'll sound any worse with diy panels??....
|
|
|
Re: acoustical treatments
|
Joined: Mar 2008
Posts: 110
veteran
|
veteran
Joined: Mar 2008
Posts: 110 |
How do you determine where the panels should optimally be located?
M22 VP100 QS8 RX-V665 DMP-BD55 SMS-1 LFM-1+ LG47SL90
Depression is merely anger without enthusiasm.
|
|
|
Re: acoustical treatments
|
Joined: Feb 2009
Posts: 3,466
connoisseur
|
connoisseur
Joined: Feb 2009
Posts: 3,466 |
Yeah, something is better than nothing. Even 4" to 6" is only starting to roll off the lower bass, but it's having plenty of effect on taming reverb of the highs. That said, thinner panels can be used at the first-reflection points along the walls, while thicker ones are placed in the corners.
The first reflection-point can be found by two people. One sitting in the listening position. The other taking a flat mirror along the wall. The "listener" only turns his head to the left and right, while the mirror is moved forward and back along the wall. When the speaker comes into view in the mirror, that's where to place a panel. Also between the speakers in the front of the room, and along the rear wall.
For the corners, if you can afford it. Take enough rock wool panels to stack to the ceiling. Then you cut each 2'x4' panel in half so you have two 2' squares. You divide those squares diagonally so you have triangles with 2' on each side (and a hypotenuse which Pythagoras could tell you the length of). That'll give you four piles of triangles each big enough to reach the ceiling in the four corners of the room. That'll provide excellent bass trapping.
Pioneer PDP-5020FD, Marantz SR6011 Axiom M5HP, VP160HP, QS8 Sony PS4, surround backs -Chris
|
|
|
Re: acoustical treatments
|
Joined: Dec 2008
Posts: 1,361
connoisseur
|
connoisseur
Joined: Dec 2008
Posts: 1,361 |
Something is absolutely better than nothing. I did a bit of treatment and found big gains from certain small changes, but no gains from others. The key is what small change makes the most impact. For me, (small HT) filling the corner behind the FL and FR made a much better soundstage. Second best was knocking down the 1st order reflections on the sides. That realy improved the focus of vocals and killed some ringing. Used a difuse plan for the front corners by stacking law books in a fashion to take up the corner and avoid corner loading, but also left triangle gaps between the books so there was no repetitive pattern for the waves. Hard to explain... [img] [/img]
Panny 3000 PJ, 118" Carada, Denon 3300, PS3, Axiom QS8, PSB 5T, B&W sub, levitating speaker wire
|
|
|
Forums16
Topics24,945
Posts442,489
Members15,617
|
Most Online2,082 Jan 22nd, 2020
|
|
0 members (),
1,065
guests, and
1
robot. |
Key:
Admin,
Global Mod,
Mod
|
|
|
|