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Ionic Music

Posted January 22, 2014 12:00 PM by Engineering360 eNewsletter

Smartphones and HDTVs of the future could play music directly through anoverlay on their screens. Researchers have developed an almost-transparent speaker by combining saltwater and a polymer to create a hydrogel. Two sheets of gel encapsulate transparent rubber. When the ions in the gel flow, the rubber vibrates at specific frequencies to produce sound.

Editor's Note: This news brief was brought to you by the Acoustics & Audio Technology News enewsletter. Subscribe today to have content like this delivered to your inbox.

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redfred
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Engineering Fields - Electrical Engineering - Been there, done that. Engineering Fields - Control Engineering - New Member

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#1

Re: Ionic Music

01/22/2014 12:18 PM

The previous entry posting in this newsletter section was 18 months ago. Why have this sub-section at all if new information will be provided only every 18 months?

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SavvyExacta
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#2
In reply to #1

Re: Ionic Music

01/22/2014 1:31 PM

We discontinued newsletter posts on CR4 for about two years but are bringing them back for another try. Please share your feedback!
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redfred
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Engineering Fields - Electrical Engineering - Been there, done that. Engineering Fields - Control Engineering - New Member

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Location: Long Island NY
Posts: 15600
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#3
In reply to #2

Re: Ionic Music

01/22/2014 2:27 PM

Ok, I hope that the newsletter will be more in depth than four sentences that link to another publication.

As for this prototype speaker design, it is intriguing to have a transparent speaker. The fact that they cannot prevent these speakers from drying out yet may keep leave them in the lab. Speaking of lab speakers, I originally thought that this was going to be about plasma speakers. This approach is commercially available, but not for those with a limited budget.

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SavvyExacta
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United States - Member - Lifelong New Yorker Popular Science - Biology - Animal Science Technical Fields - Technical Writing - Technical Writer

Join Date: Mar 2008
Location: NY
Posts: 2313
Good Answers: 59
#4
In reply to #3

Re: Ionic Music

01/22/2014 2:54 PM

Each newsletter is a collection of brief stories like this one. There are probably 10 or so in each newsletter. You can check out past issues by clicking on the link in the original post.
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Previous in Blog: What is Your Favorite Loudspeaker Design?   Next in Blog: Hi-Res Audio: On the Rise in 2014?

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