Author Topic: muffling talking voice in a close distance  (Read 1748 times)

ostr

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muffling talking voice in a close distance
« on: April 23, 2015, 02:49:17 PM »
Hi, I'm currently doing a school project on creating a sound proof mask/headset, where the wearer's talking voice is muffled as much as possible in an already noisy environment (e.g. subway station). It is to be worn on one's face, so it can't use really thick or heavy materials.

I know that sounds almost impossible to do anything with it, but I still want to know if there's anything that could help even a tiny bit? I have looked at some 6mm and 10mm polyurethane foam, but is there anything else? What about sound proofing tapes? (Given the mask will cover tightly on the wear's face? )

Thank you so much!

Randy S

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Re: muffling talking voice in a close distance
« Reply #1 on: April 23, 2015, 05:38:01 PM »
one of our forum posters have done such a mask using our products along with other products.
Maybe this will work for you as well.

http://www.silentmicrophone.blogspot.com/


Randy S.
Randy Sieg

Super Soundproofing Co
www.soundproofing.org
888-942-7723
Ph. 760-752-3030
Fax.760-752-3040

ostr

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Re: muffling talking voice in a close distance
« Reply #2 on: April 23, 2015, 10:05:19 PM »
Thanks for your reply Randy. I have actually looked at this before, but plaster of paris and acoustic paint seem to be the main materials used for sound proofing here, which creates a significant thickness and weight. 

Now I know for sound proofing, the principle is either to block sound with mass or absorb it (in a big scale). But what if I only want half or less of the effect? Say in the Silent Microphone he managed to reduce 36dB, so what are the alternative materials that are much lighter, thinner I can use, if I only want to reduce 10-15dB or less?

Thank you!

Randy S

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Re: muffling talking voice in a close distance
« Reply #3 on: April 23, 2015, 10:18:05 PM »
well you can use less material to reduce the weight or you can try to use our foam mat and see if you can make the form needed...
http://www.supersoundproofingsales.com/Foam-Mat/products/17/
or MLV
http://www.supersoundproofingsales.com/Mass-Loaded-Vinyl-MLV/products/28/

But in the end mass is what you need.

Randy S.
Randy Sieg

Super Soundproofing Co
www.soundproofing.org
888-942-7723
Ph. 760-752-3030
Fax.760-752-3040