sirene_alarm.wav

It's an all synthetized sound, created on audacity. I wanted to recreat a basic emergency alarm, which can be use for cops, firemen or ambulance.

I started by creat a track, then I add Chirps. After, I duplicated the track and make a stereo of both. After, I copy and stick multiples times my sound. After, I chossed to raise the speed of the track, twice. I also modified a little bit the height. Then, I normalized the track.

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Je pense que c'est un son répété formant un groupe tonique, au timbre harmonique éclatant voir acide, dynamique et au grain lisse.