About the Project
Adachi Rei is a Japanese UTAU
developed by Missile39
Her voice is fully artificial and generated in AudacityThe Adachi Rei C+V English Project expands on Adachi Rei's original capablities to add near-complete support for English while retaining her unique vocal qualitiesThe entirety of this project was created without the use of AI
Voice Samples
0NE ft. VoCreature's SHIRA
Staircatte
Washing Machine Heart
Mitski
Guidelines
This library is not allowed to be redistributed in part or in whole while it is being publicly distributed on this website
In the event that this website is no longer available, third party distribution of the full library is permitted
Distribution of the library in part (such as individual wav files or the oto.ini) is not allowed under any circumstances
Samples included in this library may not be modified or incorporated into other projects without permission from Jack Huwubenak
AI may not be used in any way shape or form alongside this libraryIt is not required but it is appreciated to tag the developer when posting anything using this library to Youtube, Twitter or Tiktok
Including a link to this website is also recommendedPlease refer to the official Terms of Use for any queries regarding commercial use or character usage
Adachi Rei C+V -English-
This Library uses various EQ and time stretch effects on original Adachi Rei's Japanese-Language samples to generate English consonants and vowels outside of what is available in Japanese.
This library was created without the use of AI in any form.This Library has a complicated set of contextual alternate phonemes
Please consult the readme.txt for more informationThe version of the Library available on this page is currently in Open Beta.
If you run into any Issues with this Library, please reach out to the developer via E-mail or DMs on Twitter
This Library may run into issues with various Resamplers, so we're made a non-exhaustive list of Resamplers that are known to have problems or are known to work well
| Resampler | Functionality |
|---|---|
| Worldline-R* | Works! |
| Doppletler | Works! |
| F2Resamp* | Works! |
| Fresamp | Works! |
| Moresampler* | Works! |
| Hifisampler* | Slow but Works! Minor Issues with Pitch |
| Phaavoco | Works Uncharacteristically Well |
| MacRes | Issues With Certain Vowels |
| Resampler | Issues With Certain Vowels |
| Model4 | Consonants May Render Weirdly |
| Star*Dust | Consonants May Render Weirdly |
| TIPS | Consonants May Render Weirdly |
| EFB-GT | Consonants May Fail to Render |
Recommended Resamplers are marked with an Asterisk (*)
Other Downloads
This Library is built for use within OpenUTAU with the C+V Phonemizer.The C+V phonemizer is included with OpenUtau.
An External .DLL is also available for users that may not have updated to the most recent version of OpenUtau or who may be using other forks.

