I used beepbox. Co to create a siren noise. Feel free to use this in movies, cartoons, and memes as an air raid, tornado warning, nuclear alert, or "intruder alarm" siren.
Partial from a test of an outdoor warning system amongst brick buildings. Civil dense siren, public address message, construction equipment and springtime songbirds.
American signal t-128 and federal signal 2001 siren sounding in attack mode. These sirens are normally sounded in a steady tone for tornado warnings, but this rising and falling tone would be used for civil emergencies like an air raid or other attack on the city.
Air raid siren, air defense warning, battle alarm, 50 seconds oneshot, in mono. The alarm is a reminder on sep 18th of every year in p. R. C for mukden incident "https://en. Wikipedia. Org/wiki/mukden_incident".
Mixture of electronic and mechanical siren systems from three neighbouring cities during a tornado warning in eastern iowa. The wind hadn't really picked up yet but there is quite a bit of rain. Eerie yet relaxing.
Today in germany used electronic siren with permanent sound to inform population when there is no more danger. Recorded with zoom h4n on top of the roof 1/2 mile away from the siren.