A voiceless labiodental fricative is a type of consonantal sound used in a number of spokenlanguages. It is familiar to English-speakers as the "f" sound in "face". The symbol in the International Phonetic Alphabet that represents this sound is ⟨f⟩.
Features
Features of a 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.
Used only in loanwords. There is no /f/ in Chechen; /f/ was replaced by /p/ in loanwords that contained it before increased influence from the Russian language popularized the usage of /f/.
Only occurs in loanwords in the standard version. ഫ is used to represent both /pʰ/ and /f/ but nowadays most people pronounce /pʰ/ as [f]. Occurs in native words in the Jeseri dialect. See Malayalam phonology
A voiceless dentolabial fricative is a type of consonantal sound used in some dialects of Greenlandic.
Whereas a typical voiceless labiodental fricative [f] is articulated with the upper teeth contacting the lower lip, a voiceless dentolabial fricative [f͆] is articulated in the inverse direction, with the lower teeth contacting the upper lip. While the IPA has no symbol to transcribe this distinction, the extIPA uses the diacritic ⟨◌͆⟩ (the above variant of the traditional IPA symbol for dentalization⟨◌̪⟩) to indicate dentolabial articulation in the context of labial consonants. This sound can therefore be transcribed with the symbol ⟨f͆⟩, as is used in the context of this article.
Features
The features of a voiceless dentolabial fricative are:
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 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 that air is not allowed to escape through the nose.
Because the sound is not produced with airflow over the tongue, the median–lateral dichotomy does not apply.
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