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Author Topic: Acoustic locator  (Read 2633 times)

Woody Nuss

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Acoustic locator
« on: November 18, 2016, 05:09:22 pm »

WW2 era sonic defense system. (not concert audio, but cool)
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Nathan Riddle

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Re: Acoustic locator
« Reply #1 on: November 20, 2016, 09:21:44 am »

This reminds me of the Vortex cannons the Nazis' were trying to build to take down airplanes.

Sent from my XT1585 using Tapatalk

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Tim McCulloch

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Re: Acoustic locator
« Reply #2 on: November 25, 2016, 11:42:27 am »

Interesting. Woody, any other pictures of that device?  It looks like some kind of Cassegrain-derived design.
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Kevin Graf

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Re: Acoustic locator
« Reply #3 on: November 25, 2016, 01:59:19 pm »

Doug Self has a page of 48 of these devices.

http://douglas-self.com/MUSEUM/COMMS/ear/ear.htm
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John Roberts {JR}

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Re: Acoustic locator
« Reply #4 on: November 25, 2016, 05:05:07 pm »

Doug Self has a page of 48 of these devices.

http://douglas-self.com/MUSEUM/COMMS/ear/ear.htm

here's an older image of a listening device, but not steerable.

JR
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Ivan Beaver

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Re: Acoustic locator
« Reply #5 on: November 25, 2016, 05:51:44 pm »

here's an older image of a listening device, but not steerable.

JR
Of course it was steerable.  It just took a lot of preplanning :)
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dick rees

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Re: Acoustic locator
« Reply #6 on: November 25, 2016, 09:17:36 pm »

Texas headphones.
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David Buckley

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Re: Acoustic locator
« Reply #7 on: November 26, 2016, 09:58:54 pm »

The Brits built a few non-steerable(!) sound mirror walls during the early part of the last century, pictures and info here.
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Stu McDoniel

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Re: Acoustic locator
« Reply #8 on: April 20, 2017, 02:01:41 pm »

WW2 era sonic defense system. (not concert audio, but cool)
I saw a fascinating program on PBS on owls a week or so ago.
An owl has one ear higher then the other to aid in location of prey.
Amazing creatures.
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