the rtMRI IPA chart (Dani Byrd)

Click on any of the red-colored speech sounds or utterances below to see their production captured with real-time MRI. The videos comprise 83 frames per second. Each pixel corresponds to a square 2.4 mm wide. The data were collected in June 2015. The speaker is Professor Dani Byrd (USC).


Click here for more versions of the rtMRI chart.



Consonants (Pulmonic)

Bilabial Labiodental Dental Alveolar Postalveolar Retroflex Palatal Velar Uvular Pharyngeal Glottal
Plosive
p b
t d
ʈ ɖ
c ɟ
k g
q ɢ
0 0
ʔ 0
Nasal
0 m
0 ɱ
0 n
0 ɳ
0 ɲ
0 ŋ
0 ɴ
Trill
0 ʙ
0 r
0 ʀ
Tap or Flap
0 ⱱ
0 ɾ
0 ɽ
Fricative
ɸ β
f v
θ ð
s z
ʃ ʒ
ʂ ʐ
ç ʝ
x ɣ
χ ʁ
ħ ʕ
h ɦ
Lateral fricative
ɬ ɮ
Approximant
0 ʋ
0 ɹ
0 ɻ
0 j
0 ɰ
Lateral approximant
0 l
0 ɭ
0 ʎ
0 ʟ
 

Consonants (Non-Pulmonic)

Clicks Voiced Implosives Ejectives
ʘ Bilabial ɓ Bilabial
ǀ Dental ɗ Dental/Alveolar p' Bilabial
ǃ (Post)alveolar ʄ Palatal t' Dental/Alveolar
ǂ Palatoalveolar ɠ Velar k' Velar
ǁ Alveolar Lateral ʛ Uvular s' Alveolar Fricative

Vowels

Close
Close-mid
Open-mid
Open
Front
Central
Back
i
y
e
œ
a
ɶ
ʏ
u
ɘ
ɵ
ɜ
ɞ
ɐ
u
ɤ
o
ʌ
ʊ

Other Symbols

ʍ Voiceless labial-velar fricative ɕ ʑ Alveolo-palatal fricatives
w Voiced labial-velar approximant ɺ Voiced alveolar lateral flap
ɥ Voiced labial-palatal approximant
ɧ
 Simultaneous ʃ and x
ʜ Voiceless epiglottal fricative ŋ! Alveolar nasal click
ʢ Voiced epiglottal fricative ts dʒ Affricates
ʡ Epiglottal plosive (double articulation)

Words, Sentences and Passages

heed, hid, hayed, head, had, hod, howed, hood, hoed, who'd, hud, hide, how'd, hoy'd, hued
bead, bid, bayed, bed, bad, bod, bawed, bode, booed, bud, bide, bowed, Boyd, byued
beet, bit, bait, bet, bat, pot, but, bought, boat, boot, put, bite, bird, abbot, bute

"She had your dark suit...", "Don't ask me to carry...", "The girl was thirsty...", "Your good pants..."
Rainbow Passage, Grandfather Passage