Continuous wind-up & coast

Hold the motor control to build speed, release to coast, and reapply power without restarting the sound.

Dedicated choke

Hold the brake control to slow the rotor more quickly. The choke takes priority while held.

Rebindable controls

Left Shift powers the motor; Left Ctrl applies the choke. Change bindings under Settings → Key Bindings → FiveM.

Optional toggle mode

Configure press-on / press-off motor operation. The choke retains hold-and-release control.

Recorded audio layers

Eight blended recording layers track rotor speed for smooth transitions.

Pitch & low-end tuning

Adjust the upper pitch extension and bass beneath the main tone.

Nearby multiplayer playback

Nearby players hear the siren with distance falloff and stereo positioning.

Environmental reflections

Optional local reflections and configurable city zones add echoes and reverberation.

Supported apparatus

Choose allowed vehicle spawn names in config.lua.

Timing & starting speed

Tune wind-up, coast-down, choke duration, and the starting speed from rest.

Volume & range

Adjust playback volume and audible distance to suit your server.

Requires a FiveM server with OneSync enabled and a networked vehicle included in the configured model list. No framework, database, or LVC dependency is required.

• Defaults to firetruk; add custom apparatus spawn names in config.lua.
• Operated from the driver’s seat of a supported vehicle.
• Runs alongside LVC using independent controls; it does not appear in LVC’s siren-tone menu or switch emergency lights.
• Configuration remains editable. Web audio assets and recordings are not protected by Asset Escrow.