Voicefy – AI Voice Generation Inside Unity
Turn your text into expressive, multilingual voiceovers — all within the Unity Editor.
Voicefy is the ultimate tool for developers who want to bring their games to life with realistic, customizable AI voices. Generate localized voice lines, apply emotional tone, and even create Animal Crossing-style speech — all directly in Unity, with no internet connection required.
⚡ Key Features
- 🎤 AI Voice Generation (Piper TTS) | Convert any line of text into natural-sounding speech using open-source TTS models — offline and royalty-free.
- 🌍 Multilanguage Support | Instantly test voices with a preview phrase and tweak performance.
- 👤 Voice Actor Profiles | Create reusable, customizable Voice Actor assets with pitch, speed, and model per language. Preview and tweak their voice style in real-time.
- 🧠 Easy Voice Expansion (.onnx support) | Voicefy supports any Piper-compatible .onnx voice model. Just drop new voice files into the designated folder and they’ll appear automatically in the UI — no setup required.
- 🎭 Emotion & Pause Tags | Add emotional variety to your lines using simple tags. Voicefy automatically adjusts tone and speed based on emotion.
- 📦 Audio Clip Generation | Export .wav files automatically — organized, named, and ready to use. Never lose track of which line is which again.
- 🗣️ BlipTalk Mode (Retro Voice) | Includes +40 categorized presets (Cute, Sci-Fi, Organic, etc.) — generate iconic talking sounds using syllable-based "blip" synthesis. Includes categorized presets, pitch/speed controls, and the ability to create your own.
- 🎛️ Audio Effects Engine | Add gain, echo, reverb, distortion, telephone, underwater, and more FX with one click. Designed for fast iteration and stylized voices — no external tools needed.
- 🔊 Instant Preview Playback | Preview any voice line instantly from within the Editor. No need to compile or enter Play mode.
- 🧩 Seamless Editor Integration Designed for speed and usability. 100% Editor-based — no coding required.
- 📖 Complete documentation
💡 Why Voicefy?
- ✅ No voice actors needed — generate all voices using local TTS
- ✅ Fully offline — no internet, subscriptions, or API keys
- ✅ Editor-only tool — supports any build platform via generated .wav files
- ✅ Streamlined workflow — intuitive UI designed for fast iteration
- ✅ Customizable characters — per-language voice tuning and preview
- ✅ BlipTalk Mode — stylized syllable-based speech using custom sound “blips” instead of TTS.
- ✅ Advanced FX — apply gain, echo, robot, reverb, reverse, and more
- ✅ Voicefy saves time, reduces costs, and gives you complete control over your game's voice identity.
🎯 Perfect for:
- Character dialogue in games
- NPC voice generation (realistic or stylized)
- Multilingual voiceover production
- Interactive narration
- Voice-enabled educational apps
- Prototypes with realistic voices
- Narrative prototyping
- Stylized retro or robotic speech effects
- Stylized games with retro or fantasy tones
- Accessibility & screen readers
🛠️ Made for Unity
Voicefy works 100% inside the Unity Editor. You don’t need to write code, use online services, or upload any data. Generated audio is saved as .wav files and imported directly as AudioClips.
🚀 Save hundreds of hours in VO production.
Make your characters speak, feel, and connect.
Voicefy brings voices to your world — beautifully.
📄 Licensing & Attribution
Voicefy integrates with Piper, a powerful open-source TTS engine developed by the Rhasspy project.
- Piper is licensed under the GNU General Public License v3.0 or later (GPL-3.0-or-later).
- Voicefy does not bundle Piper or any voice models. You must install them separately as part of the setup process.
- Generated audio can be used royalty-free in your Unity projects.
⚠️ Important: Some voice models available online (e.g., Hugging Face) may use different licenses — such as CC-BY-SA or non-commercial restrictions. Always review each model’s license in its MODEL_CARD.md or repository page before using it in commercial projects.
Voicefy is not affiliated with or endorsed by Rhasspy or the Piper project.
🔗 Resources
