IPA - Unicode
IPA - image
X-SAMPA	s`
Kirshenbaum	s.

The voiceless retroflex fricative is a type of consonantal sound, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is ʂ, and the equivalent X-SAMPA symbol is s`. Like all the retroflex consonants, the IPA symbol is formed by adding a rightward pointing hook extending from the bottom of the symbol used for the equivalent alveolar consonant, in this case the voiceless alveolar fricative which has the symbol s. The IPA symbol is thus a lowercase letter s with a rightward tail protruding from the lower left of the letter. Compare s and ʂ.

Features

Features of the voiceless retroflex 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.
• Its place of articulation is retroflex which means it is articulated with the tip of the tongue curled up.
• 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 middle of the tongue, rather than the sides.
• The airstream mechanism is pulmonic egressive, which means it is articulated by pushing air out of the lungs and through the vocal tract, rather than from the glottis or the mouth.

See also

• List of phonetics topics