Hachitune

Neural vocal instrument

Hachitune

Hachitune pitch correction editor interface

A neural network-powered pitch correction tool.

Under the hood

Built for natural, precise vocals.

A focused neural pipeline that listens closely, corrects gently, and keeps the character of the original performance intact.

PC-NSF-HiFiGAN

Neural vocoder for pitch refinement, producing smoother and more natural-sounding vocals.

Neural vocoder by OpenVPI

Precise analysis

Neural models RMVPE and FCPE for pitch analysis, alongside GAME for MIDI note segmentation, deliver greater accuracy throughout the correction process.

GAME by OpenVPI · RMVPE by yxlllc · FCPE by CNChTu

Designed to expand

Support for more models and new processing workflows is planned for future releases.

Around the ecosystem

Friends & open-source projects.

Featured friend DiffSinger An open-source singing voice synthesis engine from OpenVPI.
GGML · Native inference GAME-ggml A GGML-based inference backend for GAME. WebGPU · In-browser web-game Run GAME online with GGML and WebGPU to extract MIDI directly in the browser. iOS · ARKit LipsSync An ARKit-based lip movement data capture tool for training speech-to-lip models, currently used in DiffSinger-derived projects.