Voice Activated Dispatch System, Python STT to Roblox HttpService Integration

So for the past 24 hours, ive been working on a personal project that integrates real time speech recognition with rblx using a custom python companion app. This is not a public gameplay feature, its a developer side tool or exclusive feature to me i built to help test and direct my game’s dispatch/callout systems more realistically

The system lets me use push‑to‑talk voice commands (like for ex: “151, send EMS”) and have Roblox respond with

  • callouts
  • NPC interactions
  • tow/EMS/coroner requests
  • voicelines
  • radio static
  • background checks
  • Code 4 clearing
  • and more

How It Works

The structure is simple but works well

Code

Microphone  
   ↓  
Python (Vosk STT)  
   ↓  
Local HTTP Server  
   ↓  
Ngrok Tunnel  
   ↓  
Roblox HttpService  
   ↓  
Dispatch System

The Python app handles:

  • speech to text
  • callsign detection
  • session mode (e.g., “151.” , “Go ahead.” , “Send EMS.”)
  • push to talk
  • window focus detection
  • threading mic locks
  • command parsing
  • ngrok tunneling

Roblox handles:

  • command interpretation
  • callout routing
  • nearest NPC/vehicle detection
  • voicelines
  • dispatch responses
  • background checks
  • callout clearing

Showcase Video

https://youtu.be/14O7p9mwAoQ

Features

  • Real‑time voice command recognition
  • Callsign‑based activation
  • Session mode for radio flow
  • Full dispatch voiceline system
  • Tow/EMS/Coroner integration
  • Callout generator support
  • Code 4 + scene clearing
  • Background check system
  • Mic static + radio effects
  • Focus‑aware push‑to‑talk
  • Thread‑safe audio pipeline
  • Works in Studio and live Roblox (via ngrok)

Why I Built This

This is a exclusive feature, not a public feature, rblx does not allow games to access a players mics, so this system is strictly a developer side tool/exclusive feature for testing and directing callouts in my LawLine game

What is Lawline?: [BETA RELEASE] LawLine, AI Driven Police Roleplay Game