Description
Voice Physics is an addon for Simple Voice Chat that makes proximity voice communication react more naturally to the Minecraft world. Voices fade over distance, become muffled through walls, travel around corners and produce environmental echoes in enclosed spaces.
It can be installed client-side, server-side or on both sides. Client and server installations can also function independently.

Features
- Distance Models: Vanilla, Realistic, Clear and Stealth presets that automatically adapt to the server's configured voice range, including a live graph and listen function.
- Walls & Corners: Blocks affect voice clarity; walls muffle sound, wool and metal provide strong blocking, while glass and leaves block less. Sound can travel around corners and through doorways.
- Environmental Echo: Dynamic acoustics including short reflections in stone rooms, longer echoes in caves, softer acoustics in wooden structures, and delayed reflections near cliffs.
- Weather & Environment: Muffled underwater voices, rain and thunder masking distant speech, and wind reducing audibility at high altitudes or during fast Elytra flight.
- Movement & Direction: Optional Doppler effect for pitch changes and quieter voices when listening from behind the speaker.
- HUD & Monitor: Displays speaker identity, distance, direction, wall obstructions, and listener count. Includes accessibility options for color-blind users and high contrast.
- Sound Zones: Server-side areas with custom acoustics like stages, libraries, soundproof rooms, or cathedrals. Supports WorldGuard and Open Parties and Claims.
- Game Rules: Configurable behavior for sneaking, dead players, spectators, and goat horns acting as megaphones.
- Fair Play: Enforced settings for PvP/events and the ability to disable radar/monitor features to prevent detecting players through walls.
- Administration: In-game configuration tab, clickable /vcd commands, undo support, and audit logs.
- Paper Server Extras: PlaceholderAPI integration, radios, loudspeakers, eavesdropping items, and sculk reactions to shouting.
- General: Seven languages supported and /voicephysics report for bug reports.

Installation Instructions
Dependency: Simple Voice Chat (Fabric API required for Fabric/Quilt version).

Fabric / Quilt:
- Minecraft 1.16.5–26.3
- Use the voice-physics-fabric-... file

Forge:
- Minecraft 1.16.5–26.3
- Use voice-physics-forge-neoforge-...

NeoForge:
- Minecraft 1.20.1–26.3
- Uses the same voice-physics-forge-neoforge-... file

Paper / Purpur / Folia / Spigot:
- Minecraft 1.16.5–26.3
- Use the separate Voice Physics plugin instead of the mod

For versions before Minecraft 1.20, builds are provided specifically for 1.16.5, 1.17.1, 1.18.2, 1.19.2 and 1.19.4.