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Google Cloud TTS generates realistic elevator floor announcements dynamically. The free tier covers roughly 1–4 million characters per month depending on the voice model — most servers never see a charge.

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Step 1 — Create a Google Cloud Project

  1. Go to console.cloud.google.com
  2. Log in with your Google account
  3. Click the Project Dropdown at the top left → New Project
  4. Name it something recognizable (e.g. MyServer-TTS) and click Create

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Step 2 — Enable the Text-to-Speech API

  1. Make sure your new project is selected at the top
  2. Search for Cloud Text-to-Speech API in the search bar and select it
  3. Click the blue Enable button
Google requires an active billing account to enable APIs. You’ll need to attach a card, but the free tier handles normal server traffic without charge.

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Step 3 — Generate Your API Key

  1. Open the left navigation menu → APIs & Services → Credentials
  2. Click + CREATE CREDENTIALS → API Key
  3. Copy the generated key

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Step 4 — Add to config.lua

Config.SoundEffects = 'google-voice'

Config.AI = {
    Enabled    = true,
    APIKey     = "YOUR_KEY_HERE",
    VoiceModel = "en-US-Neural2-F",
    ErrorText  = "I'm sorry, you lack the credentials to use this elevator.",
}
Never share your config.lua publicly — it contains your Google API key.

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Disabling AI Voice

If you prefer traditional sound effects instead, set: 
Config.SoundEffects = 'interact-sound'  -- or 'xsound' or false
Place the included .ogg files in the appropriate directory for your chosen sound script and update Config.CustomSounds with the correct filenames.