Voiced glottal fricative

Voiced glottal fricative
ɦ
IPA number	147
Audio sample
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Encoding
Entity (decimal)	ɦ
Unicode (hex)	U+0266
X-SAMPA	h\
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The voiced glottal fricative, sometimes called breathy-voiced glottal transition, is a type of sound used in some spoken languages which 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 ⟨ɦ⟩, and the equivalent X-SAMPA symbol is h\.

In many languages, /ɦ/ has no inherent place or manner of articulation. Thus, it has been described as a breathy-voiced counterpart of the following vowel from a phonetic point of view. However, its characteristics are also influenced by the preceding vowels and whatever other sounds surround it. Therefore, it can be described as a segment whose only consistent feature is its breathy voice phonation in such languages.^[1] It may have real glottal constriction in a number of languages (such as Finnish^[2]), making it a fricative.

Northern Wu languages such as Shanghainese contrast the voiced and voiceless glottal fricatives.^[3] The two glottal fricatives pattern like plosives.^[4][5]

Features of the voiced glottal fricative:

• Its phonation is breathy voiced, or murmured, which means the vocal cords are loosely vibrating, with more air escaping than in a modally voiced sound. It is sometimes referred to as a "voiced h". Strictly speaking this is incorrect, as there is no voicing.^[6]
• 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 with no manner of articulation other than its phonation type. Because there is no other constriction to produce friction in the vocal tract, most phoneticians no longer consider [ɦ] to be a fricative. True fricatives may have a murmured phonation in addition to producing friction elsewhere. However, the term "fricative" is generally retained for the historical reasons.
• It may have a glottal place of articulation. However, it may have no fricative articulation, making the term glottal mean that it is articulated by the vocal folds, but this is the nature of its phonation rather than a separate articulation. 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 [ɦ], and accordingly [ɦ] has only the place of articulation of these surrounding vowels.
• 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 central–lateral dichotomy does not apply.
• Its airstream mechanism is pulmonic, which means it is articulated by pushing air solely with the intercostal muscles and abdominal muscles, as in most sounds.

• Creaky-voiced glottal approximant

• Aoyama, Katsura (2001), A Psycholinguistic Perspective on Finnish and Japanese Prosody: Perception, Production and Child Acquisition of Consonantal Quantity Distinctions, Springer Science & Business Media, ISBN 978-0-7923-7216-5

• List of languages with [ɦ] on PHOIBLE