Alveolar ejective fricative

From MedBib.com - Medicine & Nature

It has been suggested that this article or section be merged into voiceless alveolar fricative. (Discuss)

IPA – number	132 + 401
IPA – text	sʼ
IPA – image
Entity	sʼ
X-SAMPA	s_>
Kirshenbaum	s`
Sound sample (help·info)

The alveolar ejective fricative is a type of consonantal sound, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is sʼ, and the equivalent X-SAMPA symbol is s_>.

Features

Features of the alveolar ejective fricative:

• Its manner of articulation is sibilant fricative, which means it is produced by directing air flow through a groove in the tongue at the place of articulation and directing it over the sharp edge of the teeth, causing high-frequency turbulence.
• Its place of articulation is alveolar, which means it is articulated with either the tip or the blade of the tongue against the alveolar ridge, termed respectively apical and laminal.
• Its phonation type is voiceless, which means it is produced without vibrations of the vocal cords.
• It is an oral consonant, which means air is allowed to escape through the mouth.
• It is a central consonant, which means it is produced by allowing the airstream to flow over the center of the tongue, rather than the sides.
• The airstream mechanism is glottalic egressive, which means it is produced by pushing air with the glottis, rather than with the diaphragm.

See also

• List of phonetic topics