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Sound Reinforcement - Forums for Live Sound Professionals - Your Displayed Name Must Be Your Real Full Name To Post In The Live Sound Forums => HistoryOfConcertSound.org => Topic started by: Woody Nuss on November 18, 2016, 05:09:22 pm

Title: Acoustic locator
Post by: Woody Nuss on November 18, 2016, 05:09:22 pm
WW2 era sonic defense system. (not concert audio, but cool)
Title: Re: Acoustic locator
Post by: Nathan Riddle 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.

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Title: Re: Acoustic locator
Post by: Tim McCulloch 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.
Title: Re: Acoustic locator
Post by: Kevin Graf 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
Title: Re: Acoustic locator
Post by: John Roberts {JR} 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
Title: Re: Acoustic locator
Post by: Ivan Beaver 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 :)
Title: Re: Acoustic locator
Post by: g'bye, Dick Rees on November 25, 2016, 09:17:36 pm
Texas headphones.
Title: Re: Acoustic locator
Post by: David Buckley 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 (http://www.andrewgrantham.co.uk/soundmirrors/).
Title: Re: Acoustic locator
Post by: Stu McDoniel 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.