Phoneme Support
Contents
Phoneme Support#
English-US#
The latest EN-US TTS models support 35 phones and two stress symbols natively. An additional two phones are converted to supported phones, six diphthongs, two affricates, and seven r-colored vowels are supported. For details, refer to the Converted Phones section.
Phonemes#
IPA symbol |
example |
---|---|
ɑ |
obstinate, poppy |
æ |
active, cat, nah |
ə |
ago, woman, area |
ɔ |
orange, cause, Utah |
ʊ |
book |
ɪ |
if, fill |
ɛ |
every, pet, meh |
ɝ |
earth, bird, fur |
i |
eat, feel, valley |
u |
Uber, boost, too |
a |
For use in diphthongs |
e |
For use in diphthongs |
o |
For use in diphthongs |
b |
big, number, crab |
t |
talk, capital, sought |
ʃ |
she, abbreviation, rush |
d |
dog, random, rod |
ð |
then, mother, smooth |
f |
fork, left, half |
ɡ |
good, ago, drag |
h |
help, enhance, a-ha! |
k |
cut, slacker, Iraq |
l |
lid, palace, chill |
m |
map, camera, room |
n |
snow, tent, chicken |
ŋ |
link, sing |
p |
put, happen, flap |
ɹ |
red, borrow, tar |
s |
sit, risk, facts |
θ |
thin, empathy, month |
v |
value, event, love |
w |
with, always |
j |
yard, onion |
z |
zap, busy, kids |
ʒ |
jump, pleasure, garage |
Converted Phones#
Two phones, ʌ
and ɚ
are not natively supported in the model, but are converted to ə
and ɝ
respectively. Diphthongs and affricates are treated as two separate phones. For example, aʊ
becomes a
,ʊ
.
The following diphthongs are supported:
aʊ
aɪ
eɪ
oʊ
ɔɪ
ju
The following affricates are supported:
tʃ
dʒ
R-colored vowels are treated as separate phones; similar to diphthongs and affricates. The following r-colored vowels are supported:
ɪɹ
ɛɹ
ʊɹ
aɪɹ
aʊɹ
ɔɹ
ɑɹ
Lastly, we do not support vowel length. Phones such as ɑː
will be treated as ɑ
.