Meerkat Alert Systems New Zealand tsunami siren (2012-2020) | All signals synth

I always found these sirens interesting in how they gradually step up in loudness. According to an article I found, these sirens (in Christchurch City) have had their sound changed to comply with new regulations. Parts of New Zealand also may be getting Danish-made TWS/Whelen omnidirectional sirens. Timestamps: 0:00 | Intro 0:08 | Tsunami/Flood warning (Pulse Steady) 2:41 | Bonus custom signals 2:51 | Steady 3:14 | Alternate Steady (Hi-Lo) 3:36 | Whoop 4:05 | Yeow 4:33 | Yelp 5:09 | End of video More info: http://www.meerkatalert.co.nz/ Article 1: https://www.nzherald.co.nz/nz/christc... Article 2: https://www.rnz.co.nz/news/ldr/514448...