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Viseme Reference

End-of-Life Notice for Oculus Spatializer Plugin
The Oculus Spatializer Plugin has been replaced by the Meta XR Audio SDK and is now in end-of-life stage. It will not receive any further support beyond v47. We strongly discourage its use. Please navigate to the Meta XR Audio SDK documentation for your specific engine:
- Meta XR Audio SDK for Unity Native
- Meta XR Audio SDK for FMOD and Unity
- Meta XR Audio SDK for Wwise and Unity
- Meta XR Audio SDK for Unreal Native
- Meta XR Audio SDK for FMOD and Unreal
- Meta XR Audio SDK for Wwise and Unreal
This documentation is no longer being updated and is subject for removal.
Oculus Lipsync maps human speech to a set of mouth shapes, called “visemes”, which are a visual analog to phonemes. Each viseme depicts the mouth shape for a specific set of phonemes. Over time these visemes are interpolated to simulate natural mouth motion. Below we give the reference images we used to create our own demo shapes. For each row we give the viseme name, example phonemes that map to that viseme, example words, and images showing both mild and emphasized production of that viseme. We hope that you will find these useful in creating your own models. For more information on these 15 visemes and how they were selected, please read the following documentation: Viseme MPEG-4 Standard

Animated example

The animation that follows shows the visemes from the reference image section.

Reference Images

You can click each image to view in larger size. Only a subset of phonemes are shown for each viseme.
Viseme NamePhonemesExamplesMild ProductionEmphasized Production3/4 Rotation
sil
neutral
(none - silence)
None
PP
p, b, m
put, bat, mat
FF
f, v
fat, vat
TH
th
think, that
DD
t, d
tip, doll
kk
k, g
call, gas
CH
tS, dZ, S
chair, join, she
SS
s, z
sir, zeal
nn
n, l
lot, not
RR
r
red
aa
A:
car
E
e
bed
I
ih
tip
O
oh
toe
U
ou
book
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