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The Spanish voiceless stops /p t k/ have voice onset times (VOTs) of about 5, 10, and 30 milliseconds, and English aspirated /p t k/ have VOTs of about 60, 70, and 80 ms. Voice onset time in Korean has been measured at 20, 25, and 50 ms for /p t k/ and 90, 95, and 125 for /pʰ tʰ kʰ/ .
Word-initially, the contrast has more to do with aspiration; /t/ is aspirated and /d/ is an unaspirated voiceless stop. In the syllable coda, however, /t/ is instead pronounced with glottalization , unrelease, and a shorter vowel while /d/ remains voiceless.
The voiceless alveolar, dental and postalveolar plosives (or stops) are types of consonantal sounds used in almost all spoken languages. The symbol in the International Phonetic Alphabet that represents voiceless dental , alveolar , and postalveolar plosives is t , and the equivalent X-SAMPA symbol is t .
In addition, they restrict "plosive" for pulmonic consonants; "stops" in their usage include ejective and implosive consonants. [2] If a term such as "plosive" is used for oral non-affricated obstruents, and nasals are not called nasal stops, then a stop may mean the glottal stop; "plosive" may even mean non-glottal stop. In other cases ...
Obstruents are subdivided into: plosives (oral stops), such as [p, t, k, b, d, ɡ], with complete occlusion of the vocal tract, often followed by a release burst ...
In Southeast Asia, when stops occur at the end of a word, they are voiceless because the glottis is closed, not open, so they are said to be unphonated (have no phonation) by some phoneticians, who considered "breathed" voicelessness to be a phonation. [2] Yidiny consonants have no underlyingly voiceless consonants. [3]
All languages in the world have occlusives [2] and most have at least the voiceless stops [p], [t], [k] and the nasals [n], and [m].However, there are exceptions. Colloquial Samoan lacks the coronals [t] and [n], and several North American languages, such as the northern Iroquoian languages, lack the labials [p] and [m].
Voiceless stops are allophonically aspirated under most conditions. Voiced stops become unaspirated voiceless stops. All aspirated stops become fricatives. This sequence would lead to the same result. This variety of Grimm's law is often suggested in the context of Proto-Indo-European glottalic theory, which is followed by a minority of linguists.