DIY acoustic panels?


I took a look at gikacoustics.com and thought the sound absorption panels were actually pretty good and reasonably priced, but I am interested in making my own to better match my room.

Does anyone know what type of cloth is good for sound absorption, hopefully something that is readily available at fabric stores?
bobk3
I did a little research and found a site that tells you how to build acoustic panels:

http://acousticsfreq.com/how-to-build-your-own-acoustic-panels/

Apparently, fiberglass board insulation at least two inches thick is needed. The sample construction uses 2″ Roxul RHT 80 at $0.78 per square foot.

As far as decorative fabric, anything that is acoustically transparent, where the sound can reach the fiberglass. The page suggests putting the fabric up to your mouth and blowing through it to see if air freely flows through it — so I guess the lighter the better.
Be aware that the denser fiberglass (such as the 8lb Roxul Rockboard 80) does not work effectively if you start layering them past 2" or so.  If you want a really thick bass trap (such as 6" - 8") it is best to use 3 lb panels, such as Owens 703.
@bobk3 That's exactly what I did for my dedicated HT room. I built 14 4x2 Ft panels using Roxul 80. Worked very well. I used an acoustically transparent black grill cloth from Fabricland. Check your local fabric shop, the may have something similar. 
I know someone who can probably make them look like amazing art work.

I will be combining my audio and video equipment, which means a large TV on the wall behind the stereo equipment. Will the glass on the TV affect the audio? If so, should I build panels to cover the TV?
I am not sure about the bass traps. They might be overkill for the stage I am at.

i have been looking at the new PB Ultra subwoofers from SV Sound, however, and they claim dual subs can help smooth out the bass frequency  responses.

https://www.svsound.com/pages/16-ultra-series
https://m.youtube.com/watch?v=OXVpy5jaNsk




another thing about Roxul 80.  They are extremely heavy when compared to Owens 703.  (almost 3 times as heavy).  So if you are mounting on the wall, it may be better to get the lighter 3lb stuff like Owens 703.  However, the Roxul 80 will have better absorption in midbass (such as 100-150hz).
Here is a good https://www.fabricacousticpanels.com/acoustic-absorption-panels/ Adding a combination of acoustic sound absorbing wall panels, sound baffles, or both the two will produce significant differences in speech intelligibility and sound quality. Our echo absorber acoustic panel and baffles can be made in unique range of fabric color and material to suit your needs.
Do check out the wood wool acoustic panel at panelsforwalls. These acoustic wall panels offer significance noise reduction and have high heat resistance capacity and moreover, it's made of natural components. NRC of the panel is the on the higher side so that it's ideal for acoustic and soundproof activities.They offer a wide variety of panels such as  Acoustic wall art panels, designer tiles like Wood wool hexagon wall tiles etc.

Acoustimac has a lot of DIY products as well as finished panels.


I recently moved into a flat which is near to the train tracks, but it is a far enough distance for installing acoustic panels to be effective. Installing the panels had given me a peace of mind and I can rest in the day. My favourite panel is the timber acoustic panels, they are aesthetically pleasing, easy to setup and most importantly, blocks out noise!!
You may want to check this solution for acoustic panels Acoustic Panels
The physics of the propagation of sound is immensely complicated, and when the assortment of materials that make up the walls, floors and ceiling (plus any windows, doors and furniture) are added to the equation, it's very difficult to predict what will happen to sound waves once they've left their source. What's more, every room is different, and it's not just the dimensions that will dictate how the room will sound... Imagine two rooms of the same shape and size. One has two‑metre-thick concrete walls, and the other a single‑layer plasterboard stud-wall. Even with those brief, albeit extreme descriptions, you probably know already that the two rooms will sound very different.
The physics of the propagation of sound is immensely complicated, and when the assortment of materials that make up the walls, floors and ceiling (plus any windows, doors and furniture) are added to the equation, it's very difficult to predict what will happen to sound waves once they've left their source. What's more, every room is different, and it's not just the dimensions that will dictate how the room will sound... Imagine two rooms of the same shape and size. One has two‑metre-thick concrete walls, and the other a single‑layer plasterboard stud-wall. Even with those brief, albeit extreme descriptions, you probably know already that the two rooms will sound very different.
It’s not necessarily a compliment to say about a young woman she makes her own clothes.
It’s not necessarily a compliment to say about a young woman she makes her own clothes.
Geoffy “Toiletbreath” The Fuse Troll has spoken. 
Sleepstalker, the man who eats his own poop, strikes again. 😋
FWIW, I tried the DIY approach to making absorption panels and then I  tried GIK's products. Considering the time expended and cost of purchasing quality materials to make DIY panels of equal quality to GIK's, I can't imagine why anyone would bother unless you just enjoy experimenting to occupy your time. Their products have an outstanding price/benefit ratio. They will also give you guidance on the best products for your project. 

You asked if the expanse of television glass affects your audio quality. Yes, big time. Getting rid of the tv between my speakers was one of the best things I ever did. Unfortunately, many of us have to compromise and combine AV and audio in one location. In my past experience, acoustic panels in front of the tv help some but don't entirely ameliorate the bad effects of the tv. 
Look up ATS Acoustics, Piper City Illinois. I built several panels using their products. Have a good website.  
As a follow-up to my last post. I purchased from ATS: 1 box Rouxul Rockwood 60 panels 2", and Burlap fabric. I purchased 1 x 3" pine boards and hardware to make frames. I built 6 panels for the price of 2 pre made by ATS ($114). 
My listening room has to serve multiple purposes. And my wife is not going to let me put anything ugly or even technical looking on the walls (not that I want to either).

Ceilings are 10’ so I’m not messing with them. Left wall is 1/2" thick wood paneling but is mostly take up by two windows with heavy drapes. Back wall, behind listening position is all window, but again, behind heavy drapes. Wall behind system will soon be all books. The right wall is the issue. Solid brick. There are two areas, 4’x8’ that probably need attention. My plan is to hang oriental rugs over the brick in those places. Wife is okay with that idea and she will source the rugs. She knows where to get nice looking, older, but not high end rugs for the purpose. Still probably several hundred a piece.
DO NOT use live sheep as, although effective, they're messy and hate being stuck to a wall.
There are alternatives to everything, including big insightly refrigerator size panels and low WAF tube traps. You got your tiny little bowl acoustic resonators. You got your Mpingo discs. You got your crystals. You got your Corner Tunes from Michael Green. You got your Golden Sound Acoustic Discs for room corners. All you need is the XLO Test CD so you can determine precisely where to place the stuff since, you know, instructions are oft times too general to get you on right on the money.
Check out the women's pant suit fabric. They have grey and black at Joannes Fabric. Do the blow test on any fabric you are looking at . Blow through it and if it lets all the air through it is suitable . The women pant material looks exactly like Magnepans fabric . Find one of their 50% off coupons too . 
OP - I will load a pic of my diy stuff so you can see the pant material I am talking about . it will be in my system page .
These guys really provide the best services and you can literally check out their website that is absolutely amazing and awesome!!! This is the website that i personally recommend for getting acoustic panels, wood panels, wool and domestic decorative interiors. 

[url=https://www.panelsforwalls.com/wood-wool-acoustic-panel/]wood wool acoustic panel[/url]

<a href="https://www.panelsforwalls.com/wood-wool-acoustic-panel/">wood wool acoustic panel</a>
I tried 6" foam rubber suspended from the ceiling with some effect, with 4" foam on part of the side and back walls.

When I bought my new house, I made a deal with my wife, I got to do the family/dining room and kitchen and she got to do the rest of the house.  To that end, I have bolted 2 king size mattresses to the back wall, and a queen sized mattress to each side wall.  I then suspended the same foam from the ceiling.  Amazingly clean sound source, but I am running a 500w output amp, with 440,000 microfarads of power storage into a pair of modified Whisper Legacies, full Valhalla/Odin loom for the mids and treble and LAT 12 guage speaker wire for the bass.  I can turn it up to about 30% before I have to leave the room.  Amazing sound.  Cheap new mattresses are the way to go.
David
Can you sleep vertically on the mattresses? And do you think mattresses are way over-priced?