how can I make the back wall transparent?
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 |
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... |
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