Vinyl Blinds

I’ve used them successfully in my old listening room - they actually absorb sound and turn it into tiny amounts of heat - they are very good at absorbing sound - they do not diffuse it

you should position them...

• close to the ceiling
• try different locations - behind the listener first, then sides
• only drop them down by about 2 feet from the ceiling
• they do nothing for bass related issues like standing waves

I’ve tried it in three locations and they work very well

1. my old room, 8ft ceiling - pulled it down about 15"
2. a friends 12 ft high concrete condo - we had them at the sides and behind the listener and dropped them 24"
3. a friends house - 9 ft ceiling - behind the listener - 24" drop

I used a regular blind at home, but used a heavier vinyl for the condo - lots of reflected sound

Where to get the heavier vinyl? - try those companies that print large vinyl signs

The best "diffusers" are those panels you see with lots of different sized pieces of wood

Sound absorbers should be used very carefully - too many will deaden the room - I actually took all of mine out once I get the vinyl hung. If anything, use carpet on the floor and canvas pictures on the side wall 


Hope that helps - Steve

Most banquet halls that have the the large acoustically baffled room dividers also have vinyl backed drapes to deaden the sound.

You can also get mass loaded vinyl for even better absorption

How Is Mass Loaded Vinyl Used in Soundproofing? | Acoustical Solutions

Soundproofing Curtains and Blankets (tmsoundproofing.com)

https://www.soundproofing.org/infopages/curtains.htm

Soundproofing a Band Rehearsal Space | Acoustical Solutions

Sports & Entertainment Venue Acoustics | Acoustical Surfaces

The list goes on :-)

I have tried the mass loaded vinyl with great effect - still have one piece backed with foam to allow it to vibrate - on top of a bookshelf - works like a charm

Regards - Steve