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h
The voiceless glottal fricative, sometimes called voiceless glottal transition, and sometimes called the aspirate,[1][2] is a type of sound used in some spoken languages that patterns like a fricative or approximant consonant phonologically, but often lacks the usual phonetic characteristics of a consonant. The symbol in the International Phonetic Alphabet that represents this sound is ⟨h⟩, and the equivalent X-SAMPA symbol is h.
Although [h] has been described as a voiceless vowel, because in many languages it lacks the place and manner of articulation of a prototypical consonant, it also lacks the height and backness of a prototypical vowel:
[h and ɦ] have been described as voiceless or breathy voiced counterparts of the vowels that follow them [but] the shape of the vocal tract […] is often simply that of the surrounding sounds. […] Accordingly, in such cases it is more appropriate to regard h and ɦ as segments that have only a laryngeal specification, and are unmarked for all other features. There are other languages [such as Hebrew and Arabic] which show a more definite displacement of the formant frequencies for h, suggesting it has a [glottal] constriction associated with its production.[3]
The Lamé language contrasts voiceless and voiced glottal fricatives.[4]
Features of the "voiceless glottal fricative":
Ѐ, Yus, Russia, Greek alphabet, Microsoft
Manner of articulation, Labial consonant, Palatal consonant, Epiglottal consonant, Phonation
Manner of articulation, Place of articulation, International Phonetic Alphabet, Phonation, ɾ̼
Pharyngealization, Close-mid front unrounded vowel, Close-mid back rounded vowel, Voiceless alveolar sibilant, Voiced alveolar sibilant
Hebrew language, Niqqud, Pharyngealization, Voiceless alveolar stop, Voiceless velar stop
N, Ü, E, A, C
Esperanto, Ł, Voiceless velar fricative, Voiced labiodental fricative, Voiceless glottal fricative