Project overview

• Creation of an AI voice generation system that allows users to control vocal traits through text prompts.
• System supports control of emotions, gender, tone, age and energy; it can optionally detect emotional cues from the script context.
• Core features include prompt-based vocal style control, a voice blendspace (age, gender, tone, emotion), neutral vs emotion-following modes, and batch generation for cutscenes and dialogues.

Objectives and responsibilities

• Implement prompt parsing and mapping from textual prompts to vocal-parameter controls (emotion, age, gender, tone, energy).
• Design and implement a voice blendspace to interpolate voices along age/gender/tone/emotion axes and support neutral vs emotion-following output modes.
• Build batch generation workflows for producing dialogue and cutscene audio at scale and integrate optional emotion detection from script context.
• Integrate the generation pipeline with Unreal Engine so generated audio can be used directly in scenes and gameplay sequences.

Technical stack and tools

• Work with Text-to-Speech APIs and custom audio processing components to synthesize high-quality voices.
• Primary development in Python; integration with Unreal Engine required for runtime and tooling integration.
• Use audio processing tools for feature extraction, post-processing, mixing and final delivery of assets.

Deliverables and evaluation

• Deliver a working prototype that demonstrates prompt-based control, voice blendspace interpolation and both neutral/emotion-following modes.
• Provide example batch generation scripts, Unreal Engine integration examples (demo scenes or plugins), and a short evaluation report (quality, latency, and robustness).
• Include code, documentation, sample prompts, and generated audio examples for review.

How to apply

• Send your CV, a brief motivation letter and any relevant demo materials to recruitment@lanterns-studios.com .
• Use the email subject: "Application — 1 Prompt-Based Speech-to-Voice Generation System PFE" when applying.
• For questions about the project scope, include a short outline of your proposed approach and prior experience with speech synthesis or Unreal Engine integration.