Narrow sound?

July 14, 2005 10:44 AM

Recently I read an article about narrow-band sound and the attempt to develop it. For example, a siren from an ambulance on the street would clear the streets, but wouldn't wake people in their homes because they wouldn't hear it. I can't find the article and Google's no help. I'm tempted to say I read it on one of Marshall Brain's sites, but searching there was fruitless as well. Can someone find it?
posted by IndigoRain to Technology (6 answers total)

Don't know if THIS is what you're talking about or not...
posted by richmondparker at 11:04 AM on July 14, 2005

I came up with this press release- rather dry reading but perhaps the same technology that your article was referencing.

And here's another article with a basic explanation of directional sound technology.
posted by p3t3 at 11:09 AM on July 14, 2005

Response by poster: That's the right principle but not the article... thanks though...
posted by IndigoRain at 12:32 PM on July 14, 2005

Best answer: Does this help?
posted by jbradley at 2:04 PM on July 14, 2005

Well, I remember reading a NY times magazine article about the inventor of that technology about two years ago. They used that example of the ambulance. I find the times search engine is so poor I'd rather not go hunting for it.
posted by miniape at 4:20 PM on July 14, 2005

Response by poster: The Boing Boing link was it, thanks!! (It links to the Popular Science article too, but I found it from Boing Boing.)
posted by IndigoRain at 5:34 PM on July 14, 2005