Siren Music... No Really

[woodyrr]

I wonder if it is a row of choppers with dampers or if it is a blower pushing air through what is essentially an oversized harmonica?

No matter how it works, I like the little song it plays.

[rdfox]

I'm suspecting a row of choppers with dampers, based on the "mash the keyboard" undertone chord you hear during the wind-up, rests, and wind-down. The oversized harmonica method wouldn't do that unless the seals on the dampers for each pipe are leaking. (By the way, there's a shorter term for an oversized harmonica, y'know... it's called a "pipe organ." )

[Jared H]

now if only it did Hi-Lo for Tests.
still sounds REALLY cool though!

[sirendude2012]

With this concept of 8 or more single-tone sirens each with independent motors and different port count, each rotor with a single damper, any song could be made. I should experiment and see if it is possible to synthesize something like this...

[orestis]

https://airraidsirens.com/forums/viewto ... f=2&t=4701

Unfortunately the sound file is no more available.

[SirenTech Ind.]

What a fantastic sound! My siren dreams are complete! lol That wind down sounds quite interesting, now are both of those sirens running? I wish they'd zoom in....

[Urbanexplorer]

That's pretty fascinating. I bet it puts a lot of work on the dampers, though...

[sirendude2012]

That's pretty fascinating. I bet it puts a lot of work on the dampers, though...

Puts as much work as Hi-Lo does on the coded sirens we Americans know about.

It is interesting that the siren pictured a few posts earlier has no intake dampers, muchtheless intakes. In this case, how where they coded?

[Matt]

So after many very awkward translation sessions with some of my japanese friends, I have managed to locate some old recordings of the siren that was played through a keyboard.

Info: Siren was installed on December 11th, 1953. Siren officially died on July 15th, 1987



https://www.youtube.com/watch?v=6JdN9SXt0LM



https://www.youtube.com/watch?v=Cc0JYknPj2Y

And here is the super famous one:



https://www.youtube.com/watch?v=DsOWGlM9Ffk



https://www.youtube.com/watch?v=l9pG6SglCRw

And unfortunately the next recording is the final run of the siren before it broke. As you can hear, most of the notes have stopped responding at this point.



https://www.youtube.com/watch?v=ykmQrE7enPM

Here are some of the photos from the old post (to prevent necroposting)






EDIT:

I found the original recording that was attached to the post 5 years ago. With video.



https://www.youtube.com/watch?v=EwDL7KHzdzI

[lilsirenguy]

Why did it stop working?