Apocalypse Siren (EAS) Vital

This is a mathematically accurate recreation of the Emergency Alert System (EAS) Attention Signal, designed for industrial, dark techno, and cinematic sound design. Unlike generic sirens, this preset uses additive synthesis to replicate the exact frequencies of the official North American alert: 853Hz and 960Hz. The wavetable was built using precise bin positioning (Bin 56 & 63) to achieve the perfect 1.125 ratio, creating those iconic, anxiety-inducing intermodulation beats.