Consonantal sound
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Voiceless bilabially post-trilled dental stop | |
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t̪ʙ̥ | |
Encoding | |
X-SAMPA | tB/ |
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 t_dB\_0
.
Features※
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 abdominal muscles, as in most sounds.
Occurrence※
Language | Word | IPA | Meaning | Notes | |
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Oro Win | |||||
Pirahã | |||||
Sangtam | ※ | 'plate' | Contrasts /t͡ʙ̥, t͡ʙ̥ʰ/. | ||
Wari' | ※ | 'to be pleasant' | Forms a minimal pair with ※, which means 'to paint' |
References※
- ^ Coupe (2015) "Prestopped bilabial trills in Sangtam", Proceedings of the 18th International Congress of Phonetic Sciences, Glasgow, 10–14 August 2015
External links※
Co-articulated consonants
Other |
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Legend: unrounded • rounded |