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Old 21st May 2011, 01:16 PM   #1
kach22i is offline kach22i  United States
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Article link:
Paper your walls with loudspeakers
Paper your walls with loudspeakers : Nature News
SRI International in Menlo Park, California.
Richard Heydt, Ron Pelrine, Jose Joseph, Joseph Eckerle, and Roy Kornbluh
Sounds like a new type of bending wave loudspeaker to me.

.................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
2000 Acoustical Society of America.
See the images in the PDF, little round things, should have known they would not be square like the Nature-News article claimed.
Tubes and Martin Logan's
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