Emulation An ambulance siren sounds!!

slaphappygamer

Well-Known Member
OP
Member
Joined
Nov 30, 2008
Messages
4,163
Trophies
2
Age
46
Location
California
XP
7,869
Country
United States
When the ambulance siren sounds, it sounds like a WAH-WAH pedal. The “WIIIIIUWIIIIIU” sounds like a single frequency is being modulated (stretched?) by a potentiometer, similar to a WAH-WAH pedal. Which is why I’m curious.

To me, the siren doesn’t just sound like someone flicking a switch and the siren.mp3 plays. It sounds like someone manually modulating the frequency. Is this true? Please tell me that the frequency is being manually modulated by a human. That would be fun to operate.
 

x65943

pronouns big/pingus
Supervisor
GBAtemp Patron
Joined
Jun 23, 2014
Messages
6,262
Trophies
3
Location
ΗΠΑ
XP
27,064
Country
United States
As a former EMT I can tell you I would just flip a switch and the lights and sirens would play all by themselves
 

impeeza

¡Kabito!
Member
Joined
Apr 5, 2011
Messages
6,445
Trophies
3
Age
46
Location
At my chair.
XP
19,161
Country
Colombia
They're some type of sirens:

The old ones uses a cylindrical drum with holes in the wall which turn quickly inside another drum slso with holes do the air is press and released so quick what make the sound. Those sound liked things on the movies about bombing alarms. If you turn them fast and then turn them slow there's the characteristic whoa whoa sound, normally that's is achieved by hand rotating a lever. Later automaticed devices attached to electrical motors was developed even with variable speed

Today they're electronic ones which generate variable waves at loud
 

Site & Scene News

Popular threads in this forum

General chit-chat
Help Users
  • light27 @ light27:
    AncientBoi
    "AncientBoi - the it :ohnoes:"
  • light27 @ light27:
    -light27 profile comments, 2023
  • light27 @ light27:
    when we were talking about psps
  • light27 @ light27:
    and i was really REALLY bad at coding
    +1
  • AncientBoi @ AncientBoi:
    Went to your page to remember. yea, I'm still here
  • light27 @ light27:
    if i had more energy (i just woke up) there would be about 50 more reallys
    +2
  • light27 @ light27:
    nice
  • light27 @ light27:
    say, do you happen to have a modded wii u or 3ds
  • AncientBoi @ AncientBoi:
    nope. Just me and my PSP 3001
  • Xdqwerty @ Xdqwerty:
    @light27, I own a dsi and a ps3
    +2
  • AncientBoi @ AncientBoi:
    I think I own a shoe. It's here.... Somewhere
  • light27 @ light27:
    LOL
    +1
  • light27 @ light27:
    hmm yes
  • light27 @ light27:
    wait
  • light27 @ light27:
    what if shoes are games and the cartridges are your feet
    +1
  • AncientBoi @ AncientBoi:
    👞 Found it :hrth::toot::grog::D:grog::toot::hrth:
    +1
  • BakerMan @ BakerMan:
    it was in your ass wasn't it?
    +1
  • BakerMan @ BakerMan:
    also i don't have a wii u or a 3ds, but i do have a wii and a dsi, both modded
    +1
  • Xdqwerty @ Xdqwerty:
    brb
  • AncientBoi @ AncientBoi:
    It was in yours actually :D:tpi::rofl2:
  • BakerMan @ BakerMan:
    pulled it out of my ass like a tapeworm
    (yes that's a song reference)
    +2
  • Xdqwerty @ Xdqwerty:
    or im still here
    +1
  • AncientBoi @ AncientBoi:
    I'm not
    AncientBoi @ AncientBoi: I'm not