Voiceless labiodental fricative

Voiceless labiodental fricative
f
IPA Number128
Encoding
Entity (decimal)f
Unicode (hex)U+0066
X-SAMPAf
Braille⠋ (braille pattern dots-124)
Audio sample

The voiceless labiodental fricative is a type of consonantal sound, used in a number of spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is ⟨f⟩.

Features

Features of the voiceless labiodental fricative:

  • 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 labiodental, which means it is articulated with the lower lip and the upper teeth.
  • 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.
  • Because the sound is not produced with airflow over the tongue, the centrallateral dichotomy does not apply.
  • The airstream mechanism is pulmonic, which means it is articulated by pushing air solely with the lungs and diaphragm, as in most sounds.