71Challenger
Super Member
Think "Tapestries"...
Bingo! I have picked up some interested textiles at church sales and yard sales -Think "Tapestries"...
The carpet, heavy/blackout curtains, and tapestries are all good ideas. It's actually a very cool-looking space, like a "hi-fi grotto." But lots of corners and lots of hard surfaces. You can also get acoustic foam or do your own DIY version ("egg-crate" foam or actual egg cartons!), but those treatments tend to only mitigate high frequency reflections. I'm thinking you're going to have some broadband issues and corner bass-loading problems. What are you willing to spend/do/make to make this happen? Are there any restrictions (for instance, spousally-imposed aesthetic criteria)?
I would look at bass traps, possible acoustic panels (which you can make with rockwool and frames), adding furniture and things like bean bag chairs and book/record cases or shelving (anything with mass and uneven surfaces), and/or building a DIY diffusor if necessary. As previously mentioned, there are apps and computer programs that will help you do measurements of room modes, but a lot of it can be done with common sense (figure out where your listening position is, then treat the surfaces in that triangle to make everything less reflective). But you will definitely need some time, money, some skills, and the "green light" to make it all work...
GJ
I'm simple so I only see simple solutions. I see you sitting on the long white wall with that wall softly decorated to taste. Makes for bigger and better seating. Then the speakers moving around as needed in and out of the arches with the back side of the arches and the wall behind them decorated to soft taste as well. As a necessity I see the room containing the table being blocked off with a wall and door. Then light also done according to taste. I would not decorate the facing side of those beautiful arches. Now I see a great sounding drop dead gorgeous room with character to beat the band.
Very cool looking diffusor! I could not read the whole article without a subscription, but will try and search it out from another source. Thank you!And to expand on previous comments, here are plans for an actual studio-grade diffuser that can be put together rather cheaply, but that does a great job and looks good too. Comparable premade products would be cost prohibitive:
https://tapeop.com/tutorials/83/diy-diffusors/
GJ
That is a GREAT basement, whether it is a tough acccoustical environment or not. Is the rest of the house that nice?
The hard floor/ceiling and the brick/stone walls create an acoustically live environment with a long decay time for echo. You can verify this simply by clapping your hands. A reverberation time of a second or more is too long - typically a time of 0.6 sec is aimed for.
I am not sure exactly how you are thinking of arranging the listening position and the location of the loudspeakers. From the initial description and pictures, it looks like you aim to place them on one side of the brick arches and sit along that axis on the same side. Not sure about the dimensions of that section but it looks a bit narrow.
In general, what you want to do is have no early reflections, and that means you don't want the loudspeakers to energize the corners behind them or the wall you are looking at when looking at them. You also don't want to have reflections from the walls to the sides of the speakers.
You can achieve this with absorbing pads or by very heavy velour drapes. They will need to be placed around the wall behind and to the sides of the speakers. But they must not be straight, rather they need to be curled, like use 3ft of cloth for 1ft of running length, at least. That way they create a heavy barrier and absorb. You should also consider using diffusers, especially in the back wall from the listening position. The reflections from that wall would be diffused and generate a sense of spaciousness rather than cause modes to cancel or boom bass notes depending on where you stand or sit.