CeVIO AI

📖 What is CeVIO AI?

An AI voice synthesis tool that uses deep learning to reproduce a voice's tone and singing style. Its biggest strength is covering both spoken narration (Talk) and singing (Song) in one app, with a cast lineup that includes Sato Sasara, Suzuki Tsudumi, IA, 双葉湊音, and そよぎフラクタル. Talk voices and Song voices are sold separately — a Song voice alone runs around ¥10,000, and a starter pack around ¥20,000. It runs on Windows 11 (64-bit); Windows 10 support ended in October 2025. Check the official "About the Use of Voice Data" page for commercial-use terms.

💡 When to Use It

Good for anyone who wants to create not just narration for a commentary video but original songs and cover vocals in the same app. Since it can actually sing, it suits VTubers who want to write their own channel theme song or stream opening tune. The Talk voice also works for corner segment narration and announcement voiceovers. Since it's Windows 11 only and each cast is a separate purchase, it's realistic to decide on one voice you want to use first before buying in.

📋 Basic Info

🚀 How to Use

1. Step 1: Choose a Talk Voice / Song Voice product and cast (e.g. Sato Sasara) on cevio.jp, and decide between a starter pack or a single voice before purchasing
2. Step 2: Install CeVIO AI and the voice on a Windows 11 machine, then launch it
3. Step 3: For Talk, type text into the editor and adjust emotion parameters, speaking speed, and intonation to create narration
4. Step 4: For Song, enter notes and lyrics on the score, then adjust vibrato and volume to synthesize the singing voice
5. Step 5: Export the finished audio as WAV and use it as a stream jingle, original song, or video narration (check the official terms for commercial use)

🎬 Tutorial Video

🎉 Highlights & Comments