'Salenc' Siren | Full Simple Attack | Indoor Hall Test

Yes, the video quality is APPALLING. I wanted to position the camera as far away from the siren as possible to try and focus in on the echo rather than the raw siren sound.
By 'simple attack', I am referring to the fact that I toggled the siren on and off at 5 second intervals rather than the usual 6 second intervals.
This video was recorded from within an empty sports hall, and WOW DID THIS SOUND AMAZING. Since this siren is manually operated, I had to be stood directly next to it. Normally this siren is loud, but with this echo it was INCREDIBLE.
The siren's chopper was designed by Nicolas Salenc, and I 3D printed it using an Ender 3 V2. The 3D printing files can be bought on Mr. Salenc's website. Here is the link to his video on the siren:
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Recorded on 7.12.23