Voiceless linguolabial fricative

Consonantal sound represented by ⟨θ̼⟩ or ⟨ɸ̺⟩ in IPA
Voiceless linguolabial fricative
θ̼
ɸ̺
IPA Number130 407
Audio sample
source · help

The voiceless linguolabial fricative is a type of consonantal sound used in some spoken languages. The symbol in the International Phonetic Alphabet that represents it is θ̼ or ɸ̺.

Features

Features:

  • Its manner of articulation is fricative, which means it is produced by constricting air flow through a narrow channel at the place of articulation, causing turbulence.
  • Its place of articulation is linguolabial, which means it is articulated with the tongue against the upper lip.
  • Its phonation is voiceless, which means it is produced without vibrations of the vocal cords. In some languages the vocal cords are actively separated, so it is always voiceless; in others the cords are lax, so that it may take on the voicing of adjacent sounds.
  • It is an oral consonant, which means air is allowed to escape through the mouth only.
  • The airstream mechanism is pulmonic, which means it is articulated by pushing air solely with the intercostal muscles and abdominal muscles, as in most sounds.

Occurrence

Language Word IPA Meaning Notes
Big Nambas[1] [ˈinɛθ̼] 'he is asthmatic'

References

  1. ^ Big Nambas example words
  • v
  • t
  • e
International Phonetic Alphabet (chart)
IPA topics
IPA
Special topics
Encodings
Pulmonic consonants
Place Labial Coronal Dorsal Laryngeal
Manner Bi­labial Labio­dental Linguo­labial Dental Alveolar Post­alveolar Retro­flex Palatal Velar Uvular Pharyn­geal/epi­glottal Glottal
Nasal m ɱ̊ ɱ n ɳ̊ ɳ ɲ̊ ɲ ŋ̊ ŋ ɴ̥ ɴ
Plosive p b t d ʈ ɖ c ɟ k ɡ q ɢ ʡ ʔ
Sibilant affricate ts dz t̠ʃ d̠ʒ
Non-sibilant affricate p̪f b̪v t̪θ d̪ð tɹ̝̊ dɹ̝ t̠ɹ̠̊˔ d̠ɹ̠˔ ɟʝ kx ɡɣ ɢʁ ʡʜ ʡʢ ʔh
Sibilant fricative s z ʃ ʒ ʂ ʐ ɕ ʑ
Non-sibilant fricative ɸ β f v θ̼ ð̼ θ ð θ̠ ð̠ ɹ̠̊˔ ɹ̠˔ ɻ̊˔ ɻ˔ ç ʝ x ɣ χ ʁ ħ ʕ h ɦ
Approximant ʋ ɹ ɻ j ɰ ʔ̞
Tap/flap ⱱ̟ ɾ̼ ɾ̥ ɾ ɽ̊ ɽ ɢ̆ ʡ̆
Trill ʙ̥ ʙ r ɽ̊r̥ ɽr ʀ̥ ʀ ʜ ʢ
Lateral affricate tꞎ d𝼅 c𝼆 ɟʎ̝ k𝼄 ɡʟ̝
Lateral fricative ɬ ɮ 𝼅 𝼆 ʎ̝ 𝼄 ʟ̝
Lateral approximant l ɭ ʎ ʟ ʟ̠
Lateral tap/flap ɺ̥ ɺ 𝼈̥ 𝼈 ʎ̆ ʟ̆

Symbols to the right in a cell are voiced, to the left are voiceless. Shaded areas denote articulations judged impossible.

Non-pulmonic consonants
BL LD D A PA RF P V U EG
Ejective Stop ʈʼ ʡʼ
Affricate p̪fʼ t̪θʼ tsʼ t̠ʃʼ tʂʼ kxʼ qχʼ
Fricative ɸʼ θʼ ʃʼ ʂʼ ɕʼ χʼ
Lateral affricate tɬʼ c𝼆ʼ k𝼄ʼ q𝼄ʼ
Lateral fricative ɬʼ
Click
(top: velar;
bottom: uvular)
Tenuis


k𝼊
q𝼊

Voiced ɡʘ
ɢʘ
ɡǀ
ɢǀ
ɡǃ
ɢǃ
ɡ𝼊
ɢ𝼊
ɡǂ
ɢǂ
Nasal ŋʘ
ɴʘ
ŋǀ
ɴǀ
ŋǃ
ɴǃ
ŋ𝼊
ɴ𝼊
ŋǂ
ɴǂ
ʞ
 
Tenuis lateral
Voiced lateral ɡǁ
ɢǁ
Nasal lateral ŋǁ
ɴǁ
Implosive Voiced ɓ ɗ ʄ ɠ ʛ
Voiceless ɓ̥ ɗ̥ ᶑ̊ ʄ̊ ɠ̊ ʛ̥
Co-articulated consonants
Labial–velar
ɧ
Sj-sound (variable)
Lateral approximant
Velarized alveolar
Labial–velar
Labial–alveolar
Other
Front Central Back
Close
•
•
Near-close
Close-mid
•
•
Mid
Open-mid
Near-open
•
Open
•
•

Legend: unrounded  rounded