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Real Sound Detector devices of various countries

Posted: Wed Jan 17, 2024 12:50 am
by Arkham
Ever wonder what a Sound Detector device is? Wonder no more!
That is a dutch version from the 1930s.
Image

And English:Image

The fearsom Japanese War Tuba: Image

Oh, we can't forget our German friends either: Image

Re: Real Sound Detector devices of various countries

Posted: Wed Jan 17, 2024 7:12 am
by stuman
I need some of those German models.

Re: Real Sound Detector devices of various countries

Posted: Wed Jan 17, 2024 8:07 am
by Chris21wen
Not so portable.
WW1AcousticMirrorKilnsea(PaulGlazzard)Jan2007.jpg
WW1AcousticMirrorKilnsea(PaulGlazzard)Jan2007.jpg (51.45 KiB) Viewed 1091 times

Re: Real Sound Detector devices of various countries

Posted: Wed Jan 17, 2024 11:39 am
by Platoonist
Chris21wen wrote: Wed Jan 17, 2024 8:07 am Not so portable.
An ear trumpet for the stone deaf. :shock:

Re: Real Sound Detector devices of various countries

Posted: Wed Jan 17, 2024 7:57 pm
by insecttoid3
Looks like a distant noise from just the right angle could really scare the heck out of some cows.

Re: Real Sound Detector devices of various countries

Posted: Thu Jan 18, 2024 3:15 am
by BBfanboy
Well the focal point for the gathered sound would be at the top of that steel post in front of the dish - that's where the microphone would have been. Beyond that point, the sound waves spread out again in a mirror pattern to the dish shape.

Re: Real Sound Detector devices of various countries

Posted: Fri Jan 19, 2024 9:11 am
by Yaab
Arkham wrote: Wed Jan 17, 2024 12:50 am Ever wonder what a Sound Detector device is? Wonder no more!

The fearsom Japanese War Tuba: Image
"Tell me, Akira, what are we overcompensating for?"

BTW, I saw this exact photo when I was a very small child and I thought these were very powerful artillery guns.

Re: Real Sound Detector devices of various countries

Posted: Fri Jan 19, 2024 12:12 pm
by Platoonist
Yaab wrote: Fri Jan 19, 2024 9:11 am BTW, I saw this exact photo when I was a very small child and I thought these were very powerful artillery guns.
Funny. I saw it as a kid too and thought maybe Dr. Suess was on to something. :mrgreen:

Image

Re: Real Sound Detector devices of various countries

Posted: Fri Jan 19, 2024 12:21 pm
by Yaab
Lung guns. 155mm Lung Tom gun.

Re: Real Sound Detector devices of various countries

Posted: Fri Jan 19, 2024 6:53 pm
by the1henson
I'm learning where Dr. Seuss got some of his ideas.

Re: Real Sound Detector devices of various countries

Posted: Fri Jan 19, 2024 9:35 pm
by RangerJoe
the1henson wrote: Fri Jan 19, 2024 6:53 pm I'm learning where Dr. Seuss got some of his ideas.
Well, he was an educated man!