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In phonetics, voice onset time (VOT) is a feature of the production of stop consonants. It is defined as the length of time that passes between the release of a stop consonant and the onset of voicing, the vibration of the vocal folds, or, according to other authors, periodicity. Some authors allow negative values to mark voicing that begins ...
In phonetics and phonology, gemination (/ ˌ dʒ ɛ m ɪ ˈ n eɪ ʃ ən / ⓘ; from Latin geminatio 'doubling', itself from gemini 'twins' [1]), or consonant lengthening, is an articulation of a consonant for a longer period of time than that of a singleton consonant. [2]
Fortis stops in Australian Aboriginal languages such as Rembarunga (see Ngalakgan) also involve length, with short consonants having weak contact and intermittent voicing, and long consonants having full closure, a more powerful release burst, and no voicing. It is not clear if strength makes the consonants long, or if during long consonants ...
In phonetics, a plosive, also known as an occlusive or simply a stop, is a pulmonic consonant in which the vocal tract is blocked so that all airflow ceases. The occlusion may be made with the tongue tip or blade ( [ t ] , [ d ] ), tongue body ( [ k ] , [ ɡ ] ), lips ( [ p ] , [ b ] ), or glottis ( [ ʔ ] ).
Also, tonal contour may reinforce the length, as in Estonian, where the over-long length is concomitant with a tonal variation resembling tonal stress marking. In transcription in the International Phonetic Alphabet , long vowels or consonants are notated with the length sign (ː Unicode U+02D0 MODIFIER LETTER TRIANGULAR COLON) after the letter.
Compensatory lengthening in phonology and historical linguistics is the lengthening of a vowel sound that happens upon the loss of a following consonant, usually in the syllable coda, or of a vowel in an adjacent syllable. Lengthening triggered by consonant loss may be considered an extreme form of fusion (Crowley 1997:46).
However, because consonant length is no longer contrastive, doubled consonants are purely an orthographical device to indicate vowel length. Long vowels in closed syllables are doubled, and consonants are doubled following short vowels in open syllables even when it is not etymological.
Finnish also denotes stress principally by adding more length (approximately 100 ms) to the vowel of the syllable nucleus. This means that Finnish has five different physical lengths. (The half-long vowel is a phonemically short vowel appearing in the second syllable, if the first—and thus stressed—syllable is a single short vowel.)