This is a short test sound from a public alarming system meant to warn for example a local disaster. The loudspeaker was located at roof of tall building. This recording was made about 0,3 km from that loudspeaker.
An alarm sound. This sound was made by recording an actual beep from an alarm clock, duplicating the sound and slowing it down to 40% (0. 4x) of the original speed.
Self-created fire alarm. The idea is based on the typical fire alarm in buildings and was supplemented by a typical (slightly pitched) sound sequence of the us emergency vehicles. The sounds and the composition were created completely with audacity. I would be happy about suggestions for improvement and how you have used the sound sequence. I used it as a fire alarm in my home automation.