# hecomi/uLipSync

MFCC-based LipSync plug-in for Unity using Job System and Burst Compiler

Repository: https://github.com/hecomi/uLipSync
Canonical: https://ross.abutalabs.com/products/ulipsync
Homepage: https://tips.hecomi.com/entry/2022/01/30/152519
Language: C#
License: MIT
License Family: permissive
Topics: unity, lip-sync, burst-compiler, job-system, microphone, timeline, vrm, webgl
Last push: 2026-01-06T09:12:01+00:00

## Health v2 (maintenance only)
Score: 50/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 61, release rhythm 8, longevity 100
- inputs: {"age_days": 2079, "days_push": 239, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1660, forks 195 (observed 2026-08-28T04:05:18.396338+00:00)

## What it is
uLipSync is a Unity plug-in that performs lip-sync by analyzing audio in real time or pre-baked, extracting MFCC features via the Job System and Burst Compiler without native plugins. It maps detected phonemes to character blend shapes, with per-character calibration profiles, Timeline integration, AnimationClip baking, VRM support, and WebGL builds.

## Use cases
- lip sync a Unity character from audio clips
- drive VRM avatar mouth blendshapes from microphone input
- pre-bake lip sync animation for cutscenes with Timeline
- real-time voice-driven avatar animation for streaming
- bake lip sync to AnimationClip for offline playback
- cross-platform lip sync in Unity without native plugins

## When to choose
- you need lip sync in Unity across many platforms including WebGL with no native dependencies
- you want per-character calibration profiles or Timeline/AnimationClip pre-bake workflows
- you use VRM avatars or need runtime microphone-driven lip sync

## When to avoid
- you need out-of-the-box phoneme accuracy comparable to OVRLipSync without tuning
- your project is not Unity-based
- you need full speech recognition rather than vowel/consonant estimation

## Facets
- artifact type: plugin
- maturity: active
- function: audio-processing, machine-learning, animation, plugin-system
- domain: computer-vision
- platform: cross-platform, game-engine, windows
- tags: unity, lip-sync, mfcc, burst-compiler, job-system, vrm, timeline, microphone-input, blendshapes, vtuber, game-development, audio, real-time, webgl, macos, linux, android, ios

## Member repositories
- hecomi/uLipSync (main) score 50

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:18.396338+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:44:40.466810+00:00, confidence not recorded.
  - readme: https://github.com/hecomi/uLipSync (fetched 2026-08-28T04:05:18.396338+00:00, sha e27111c153b0)
  - homepage: https://tips.hecomi.com/entry/2022/01/30/152519 (fetched 2026-08-29T11:17:04.960719+00:00, sha 152843827f7e)
  - site_page: https://tips.hecomi.com/about (fetched 2026-08-29T11:17:04.964976+00:00, sha 104fa37faf96)
- Data as of 2026-08-30T08:39:29.467469+00:00.