This article needs additional citations for verification. (March 2020)
|Voiceless bilabially post-trilled dental stop|
The voiceless bilabially post-trilled dental stop is a very rare consonantal sound reported to occur in a few spoken languages: the Oro Win and Wariʼ languages in South America and Sangtam in Northeast India. The symbol in the International Phonetic Alphabet that represents this sound is ⟨t̪ʙ̥⟩, and the equivalent X-SAMPA symbol is
Features of the voiceless bilabially post-trilled dental stop:
- Its manner of articulation is trill, which means it is produced by directing air over an articulator so that it vibrates.
- It has two places of articulation:
- 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 air is allowed to escape through the mouth only.
- It is a central consonant, which means it is produced by directing the airstream along the center of the tongue, rather than to the sides.
- The airstream mechanism is pulmonic, which means it is articulated by pushing air solely with the intercostal muscles and diaphragm, as in most sounds.
|Wari'||[t͡ʙ̥ot͡ʙ̥o]||'to be pleasant'||Forms a minimal pair with [toto], which means 'to paint'|
- Coupe (2015) "Prestopped bilabial trills in Sangtam", Proceedings of the 18th International Congress of Phonetic Sciences, Glasgow, 10–14 August 2015