openutau/OpenUtau

What it solves

OpenUtau is a free, open-source singing voice synthesis editor designed for singing voice synthesis (SVS) voicebanks own community. It provides a modern, cross-platform alternative to the original UTAU software, solving common usability issues like the same system locale requirements and cumbersome navigation.

How it works

The software acts as an editor for vocal synthesis, allowing users to create songs and covers. It uses a MIDI editor for note placement and includes a variety of phonemizers to handle different phonetic systems (such as VCV, CVVC, and Arpasing) across multiple languages. It supports various resamplers and the ENUNU AI singer system, allowing for high-quality vocal rendering. To improve performance, it uses pre-rendering to render vocals before playback for a faster editing experience.

Who it’s for

It is designed for creators in the UTAU community and users who want to create vocal covers and original songs using singing voice synthesis tools.

Highlights

• Cross-platform support: Runs on Windows, macOS, and Linux.
• AI Singer Support: Supports ENUNU AI singers.
• Extensible Phonetics: Includes phonemizers for multiple languages including English, Japanese, Chinese, Korean, and Russian.
• Modern UX: Features a feature-rich MIDI editor, a dedicated vibrato editor, and a mouse/keyboard-driven interface.
• UTAU Compatibility: Compatible with most UTAU resamplers and supports importing VSQX (Vocaloid 4) tracks.
• Plugin System: Offers an API for editing macros and phonemizers to extend functionality.