A voiceless glottal fricative, sometimes called a voiceless glottal transition or an aspirate,[1][2] is a type of sound used in some spokenlanguages. It is familiar to English-speakers as the "h" sound in "hut". The symbol in the International Phonetic Alphabet that represents this sound is ⟨h⟩.
A [h] sound may have real glottal constriction in a number of languages (such as Arabic), making it a true fricative. However, in many languages that have it, it only patterns like a fricative or approximantphonologically, and lacks the usual phonetic characteristics of a consonant. In such languages, [h] has no inherent place or manner of articulation, as well as lacking the height and backness of a vowel. Thus it has been described as neither consonant nor vowel but simply voicelessphonation:
[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]
An effort was undertaken at the Kiel Convention in 1989 to move glottal fricatives, both voiceless and voiced, to the approximant cells of the IPA chart.[4][5] A specifically fricative sound may be indicated with a raising diacritic ⟨h̝⟩, and a specifically approximant with a lowering diacritic ⟨h̞⟩.
The Shanghainese language, among others, contrasts voiced and voiceless glottal fricatives.[6]
Features
Features of the voiceless glottal fricative:
In some languages, it has the constricted manner of articulation of a fricative. However, in many if not most it is a transitional state of the glottis or an approximant, with no manner of articulation other than its phonation type. Because there is no other constriction to produce friction in the vocal tract in the languages they are familiar with, many phoneticians[who?] no longer consider [h] to be a fricative. However, the term "fricative" is generally retained for historical reasons.
It may have a glottalplace of articulation. However, it may have no fricative articulation, in which case the term 'glottal' only refers to the nature of its phonation, and does not describe the location of the stricture nor the turbulence. All consonants except for the glottals, and all vowels, have an individual place of articulation in addition to the state of the glottis. As with all other consonants, surrounding vowels influence the pronunciation [h], and [h] has sometimes been presented as a voiceless vowel, having the place of articulation of these surrounding vowels.
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.
Appears as the lenited form of 'f', 's' and 't', as well as grammatical pre-aspiration of vowels, & occasionally word-initial as 'h' in borrowed words. See Irish phonology.
A nasalized voiceless glottal fricative or approximant is a type of consonantal sound used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is ⟨h̃⟩.
Occurrence
The /h/ sound is nasalized in several languages, apparently due to a connection between glottal and nasal sounds called rhinoglottophilia.[citation needed] Examples of languages where the only h-like sound is nasalized are Krim, Lisu, and Pirahã.
More rarely, a language will contrast oral /h/ and nasal /h̃/. Two such languages are neighboring Bantu languages of Angola and Namibia, Kwangali and Mbukushu. In these languages, vowels following /h̃/ are nasalized, though nasal vowels do not occur elsewhere. A distinction is also reported from Wolaytta, though in that case the nasal is rare. Swazi distinguishes /h,h̃,ɦ,ɦ̃/.
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