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Roblox

Give every Roblox NPC a unique human-sounding voice — stream custom AI speech into experiences and free designers from static audio clips.

How it works

YOUR APP
Roblox Game World
Character dialogue and in-game events triggered inside Roblox experiences
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RESEMBLE AI
Voice Synthesis
Immersive character voices generated in real time for game dialogue
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YOUR APP
Deepfake detection
In-game voice audio scanned for impersonation and synthetic voice misuse
OUTPUT
Player experience
Fun, immersive characters with expressive voices and safe in-game chat

Overview

Resemble AI lets Roblox developers generate expressive, real-time voices for hundreds of characters without hiring voice talent for each one. Build a cast of distinct NPCs, narrators, and event announcers by designing custom voices in the Resemble app, then stream audio into your experience through the real-time API.

Because audio is generated on demand, dialogue can be dynamic — personalized to a player's name, branching on story choices, or updated without republishing the place. Combined with emotion controls and 90+ languages, Roblox creators get a voice system that scales to global audiences without ballooning asset size.

Features

Hundreds of unique NPCs

Design a cast of identifiable voices in Resemble and call each one from Lua. Every character can sound different.

Real-time streaming

Generate dialogue on demand with sub-second latency. No pre-rendering or massive audio uploads to Roblox storage.

Dynamic, personalized lines

Speak a player's username, branch on story choices, or respond to in-game events without republishing your place.

Emotion and style control

Tag each line with tone — excited, fearful, heroic. Characters sound alive across every scene and encounter.

90+ languages

Localize your experience without re-recording. One voice identity can speak every language your players do.

Safe-by-default pipeline

All generated speech passes Resemble's content safeguards. Suitable for experiences targeting younger audiences.

Use cases

  • Give every NPC in a Roblox RPG its own distinct AI voice without hiring voice talent
  • Generate dynamic quest dialogue that speaks the player's username and responds to choices
  • Power event announcers and tournament hosts with branded AI voices across live experiences
  • Localize a Roblox game into 90+ languages without re-recording every line
  • Narrate tutorials and onboarding flows in a friendly, consistent voice
  • Prototype new characters quickly by generating temp voices before committing to final designs

Related integrations

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