OpenUtau vs UTAU: which is better?

OpenUtau is better for modern, cross-platform use with improved usability and extensible features, while UTAU might suit users needing exact legacy compatibility or specific niche tools. OpenUtau addresses UTAU's limitations but doesn't replicate all features.

How to install resamplers in OpenUtau?

Check the Resamplers wiki page for detailed instructions; it involves placing resampler files in the correct directory, and OpenUtau is compatible with most UTAU resamplers. The process requires some familiarity with vocal synthesis tools.

Can OpenUtau use Vocaloid voicebanks?

No, OpenUtau does not aim for full Vocaloid compatibility, though it can import VSQX tracks from Vocaloid 4. For using Vocaloid voicebanks directly, other software like Vocaloid Editor is more suitable.

Is OpenUtau good for beginners in vocal synthesis?

It can be challenging for beginners without UTAU background due to its learning curve and reliance on concepts like phonemizers. Reading the wiki is strongly recommended, so prior experience helps.

What languages does OpenUtau support for phonetic editing?

It supports many languages including English, Japanese, Chinese, Korean, and Russian through extensible phonemizers for systems like VCV and CVVC. Real-time editing enables flexible vocal tuning across these languages.

Does OpenUtau work on Mac?

Yes, OpenUtau runs on macOS along with Windows and Linux, with downloadable DMG files for Mac, and it doesn't require locale changes like UTAU.

Open-Awesome

OpenUtau

MITC#0.1.576

A free, open-source singing synthesis editor designed as a modern successor to UTAU for creating vocal tracks.

Visit Website GitHub

4.4k stars579 forks0 contributors

What is OpenUtau?

OpenUtau is a free, open-source singing synthesis editor designed as a modern successor to UTAU. It provides a feature-rich MIDI editor, extensible phonetic editing, and cross-platform support for creating vocal tracks and covers. The project addresses UTAU's limitations with improved usability, real-time previews, and compatibility with various resamplers and languages.

Target Audience

UTAU users, vocal synth enthusiasts, and music producers looking for an open-source, cross-platform tool to create and tune synthesized vocal tracks.

Value Proposition

Developers choose OpenUtau for its modern interface, selective UTAU compatibility, extensible plugin system, and smooth rendering workflow—offering a free, community-driven alternative with better cross-platform support and no locale restrictions.

Overview

Open singing synthesis platform / Open source UTAU successor

Use Cases

Best For

Creating vocal covers and original songs with synthesized voices
Editing and tuning MIDI-based vocal tracks with expressive vibrato
Working with multiple languages and phonetic systems (e.g., Japanese, English, Chinese)
Using ENUNU AI singers for AI-powered vocal synthesis
Importing and editing VSQX (Vocaloid 4) project tracks
Developing plugins or resamplers for extensible vocal synthesis workflows

Not Ideal For

Producers needing comprehensive DAW-level audio mixing and effects
Users requiring full compatibility with Vocaloid projects beyond VSQX import
Teams insisting on exact replication of UTAU's legacy workflow and features

Pros & Cons

Pros

Modern Intuitive Interface

Navigate naturally with mouse, scroll wheel, and keyboard shortcuts, offering a smoother experience over UTAU's clunky design, as shown in the editor GIFs.

Cross-Platform Support

Runs on Windows, macOS, and Linux without locale changes, eliminating UTAU's system locale restrictions for international users.

Extensible Phonetic Editing

Includes real-time phonemizers for multiple languages and phonetic systems like VCV and Arpasing, enabling versatile vocal synthesis across different linguistic needs.

Smooth Playback Workflow

Pre-rendering allows quick vocal previews before playback, saving time during editing and tuning, as demonstrated in the playback GIF.

Cons

Limited Audio Mixing

Only supports minimal mixing features, requiring users to rely on external digital audio workstations for comprehensive audio production, as admitted in the README.

Steep Learning Curve

Assumes prior knowledge of UTAU concepts; the README strongly recommends reading wiki pages before use, which can be daunting for newcomers.

Incomplete UTAU Compatibility

Prioritizes modern design over exact legacy feature replication, potentially missing niche UTAU functionalities that some users depend on.

Open Source Alternative To

OpenUtau is an open-source alternative to the following products:

UTAU

UTAU is a Japanese singing synthesizer application that allows users to create vocal tracks by inputting lyrics and melody, similar to Vocaloid but with community-created voicebanks.

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