OpenUTAU

OpenUTAU: Vocal Synthesizer Software

Free, open source vocal synthesizer software for creating UTAU voices, with features for editing voice samples and notes

What is OpenUTAU?

OpenUTAU is a free and open source software application for creating vocal synthesizers known as UTAU (short for UTAU-loid). UTAU are similar to the more well-known Vocaloid singing synthesizers, but are created by independent developers and hobbyists.

The OpenUTAU software provides tools for UTAU voicebank creation, editing, and synthesis. Users can record or import voice samples, edit them to create clear syllables and phonemes, and map them to notes on a piano roll interface to allow the software to sing. Vibrato, pitch bending, and other expression effects can also be customized.

Once a UTAU voicebank is created and set up in OpenUTAU, users can type in lyrics and have them sung by their custom synthesized voice. The results can be exported as WAV files or MIDI for use in music production and song creation. Users can share their created voicebanks with others in the UTAU community.

Some of the main features of OpenUTAU include:

• Tools for recording and editing voice samples
• Graphical piano roll style interface for mapping samples to notes and lyrics
• Customizable voice parameters like vibrato and dynamics
• Support for Japanese and other languages
• Real-time synthesized singing voice preview
• Exporting song data to WAV, MIDI, and MusicXML formats
• Scripting and plug-in support for advanced users
• Cross-platform support for Windows, macOS, and Linux

While the singing result of UTAU voices can sound robotic at times, OpenUTAU provides a way for hobbyists and independent developers to create unique singing voices for free. The software continues to be developed and improved by a growing community.

OpenUTAU Features

Official Links