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how can I make the back wall transparent?

If this is the wrong place for this topic please move it

My listening room is 11.5 x 15 and my speakers are 3.5 ft from the back wall.

I have spent considerable effort tweaking stuff, to the point where the system sounds very spacious and deep, BUT it still does not sound as spacious as systems with 6-8 ft of free space behind the speakers.

Is there any aesthetically pleasing wall treatment available that would give me that depth without moving the speakers

Taking the wall down is not an option:-)
williewonka
williewonka OP
3,082 posts
 
Lowrider57 - the vinyl used - being soft like material - probably absorbs more than it reflects. Otherwise, as you stated above - it would simply reflect the sound back to the speakers just as the window did.

I do have drapes for the window, but they are very light and had little to no effect when I had them closed, so I am guessing most of the sound passed right through them.

Whereas the vinyl does not allow the sound to flow through it like the drapes.

Perhaps the sound is converted into motion?

It has to change into something and I'm pretty sure it's not heat :-)

I also tried some other thin fabric a while back - same results as the drapes

I get the roller-blind next week. It is a little lighter weight than the vinyl I used.

I will post an update once it's installed
williewonka OP
3,082 posts
 

Lowrider57 - I did some digging and found a lot of info on Mass Loaded Vinyl (MLV)

Turns out the sound waves are converted to heat by the vinyl - because they cannot get through it.

The MLV is a lot heavier than the vinyl I have used, so it would offer even better sound damping qualitied. It's used by several companies that want to provide a more pleasing treatment, such as drapes

Here are some links

http://www.allnoisecontrol.com/products/Acoustic-Curtains.cfm

http://www.amazon.com/Loaded-Vinyl-Square-Acoustic-Barrier/dp/B008JHE1P6/ref=sr_1_11?ie=UTF8&qid...

http://www.noisehelp.com/mass-loaded-vinyl.html

http://www.acousticalsurfaces.com/acoustical_drapery/acoustical_curtains.htm

http://www.soundproofingtips.com/soundproof-curtains/


The roller blind I am getting is made of a lighter vinyl, so it will be interesting to see how it fairs


I will post an update once it's installed

Regards...


chrisr's avatar
chrisr
543 posts
 
Auralex has some good solutions too.
Post removed 
lowrider57's avatar
lowrider57
5,417 posts
 
Many thanks, williewonka, I appreciate you sharing your research.
I did not realize that vinyl could absorb sound waves.

I've seen some types of acoustic curtains, as one of your links points out, they are made of fabric with a vinyl layer. But what is interesting to me is a roll of MVL and using it at the top of the wall where it meets the ceiling.
I have a tapestry on the wall behind my listening position and a vertical acoustic panel to right of it in the corner. The only problem is making this vinyl strip look aesthetically acceptable.

I was also wondering if I could use vinyl as a type of crown moulding behind me.
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