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RWebb 05-20-2011 03:32 PM

new speaker design
 
perfect for that pesky package shelf spot...

Paper your walls with loudspeakers : Nature News

bell 05-20-2011 05:14 PM

sound kinda like electrostats?

Zeke 05-20-2011 05:14 PM

Didn't Yamaha have the precursor to that 25 years ago?

kach22i 05-21-2011 05:08 AM

Sounds like a new type of bending wave loudspeaker.

.................five centimetres square.......................

The wavelength and range of frequency a driver can generate is typically restricted by it's size. Which is why tweeters (high notes) are small and woofers (deep notes) are large.

Not sure how they claim to get around certain laws of physics here.

The copyright on the original article goes back to the year 2000.

Acoustical performance of an electrostrictive polymer film loudspeaker | Browse - Journal of the Acoustical Society of America
Quote:

2000 Acoustical Society of America.
Some diagrams and photos in this PDF link:
http://murphylibrary.uwlax.edu/digital/journals/JASA/JASA2000/pdfs/vol_107/iss_2/833_1.pdf

Little round things, should have known they would not be square.

sc_rufctr 05-21-2011 05:14 AM

VAF SoundWall - Soundwall - Loudspeakers - VAF Research

http://forums.pelicanparts.com/uploa...1305983675.jpg

kach22i 05-21-2011 05:23 AM

Quote:

Originally Posted by sc_rufctr (Post 6035781)

Quote:

VAF’s SoundWall™(Patent) concept comprises three individual module types: a Speaker module, an Acoustic Treatment module, and a Bass module. These can be used in any combination to suit the unique needs of every single room.
No technical details on how these modules operate, so I cannot comment further.

RWebb 05-21-2011 10:06 AM

Nature is a scientific journal, so no idea when a product might emerge.

if I read the article right, the plastic is actually expanding in the planar axes (a sheet of rubber stretching and contracting but being driven by an electrical signal), not vibrating back and forth

lane912 05-25-2011 05:10 PM

have you seen the infinite baffle speakers?
Infinite Baffle Subwoofer
takes a whole other room but very efficient


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