Audio

Audio Workflow

Audio drives facial animation from a voice track alone — no footage, calibration, or identity. It is the simplest job type to configure, for lip-sync and expression from dialogue when no capture footage exists.

An audio batch — one job per voice track, no footage or identity needed

Four Audio jobs in the queue, typed Face / Auto Detect, running through Tracking to Done with waveform thumbnails

Pipeline stages

Validate Input

Audio SolveVoice -> controls

Export Outputs

Save Assets

Required input

One voice track per job, from any of three sources in the Add Jobs... dialog:

Project SoundWave USoundWave A sound wave asset already in the content tree

WAV folder Files on disk The WAV stays where it is; each job imports it beside the Performance at solve time

Wwise container Resolved over WAAPI Solves from Wwise's own converted media; conversions must be PCM. See Wwise Audio

Audio jobs do not require Capture Data, a MetaHuman Identity, or a Camera Calibration — a voice track is the whole input.

Audio solves need UE 5.8. The solve runs on 5.8-only Performance APIs, so on UE 5.5 / 5.7 an audio job fails immediately with a version message; the rest of the plugin works normally.

Audio options

Solver Mode Realtime — faster, lower quality, good for previews and iteration. Offline — slower, higher quality; use for final deliverables.

Mood Preset Sets the emotional baseline used to color the animation — Neutral, Happy, Sad, Angry, Surprised, Disgusted, Fearful. The solver blends detected phonemes against this mood.

Mood Intensity Blend weight for the Mood Preset — lower values keep the animation closer to neutral while retaining a hint of the chosen mood.

Output Controls Which control-rig channels the solve drives: Full Face, Lips Only, or Eyelids Only.

Blink Generation Auto-generates natural blinks when the solve produces no blink data. Enabled by default; disable if blinks come from a separate system.

Downmix Channels / Audio Channel Downmixes multi-channel audio to mono by default. Disable to solve from a single channel, then set Audio Channel (0-indexed — 1 for dialogue on the right channel).

Lookahead Window How far ahead (ms) the solver reads the signal for anticipatory cues, e.g. jaw pre-opening before a vowel. Default 80 ms — raise for more anticipation, lower for tighter sync.

Outputs

Performance + AnimSequence Always Solved performance plus baked face animation, driving full-face or mouth-only controls per Output Controls

FBX exports Optional Enabled in Global Settings; face jobs get the Control Rig _CR form