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Voice or voicing is a term used in phonetics and phonology to characterize speech sounds (usually consonants).Speech sounds can be described as either voiceless (otherwise known as unvoiced) or voiced.
Most commonly, the change is a result of sound assimilation with an adjacent sound of opposite voicing, but it can also occur word-finally or in contact with a specific vowel. For example, the English suffix -s is pronounced [s] when it follows a voiceless phoneme (cats), and [z] when it follows a voiced phoneme (dogs). [1]
So-called voiced aspirated consonants are nearly always pronounced instead with breathy voice, a type of phonation or vibration of the vocal folds. The modifier letter ʰ after a voiced consonant actually represents a breathy-voiced or murmured consonant, as with the "voiced aspirated" bilabial stop bʰ in the Indo-Aryan languages.
Instead of keeping the glottis tightly closed, it is tensed but left slightly open to allow a thin stream of air through. Unlike pulmonic voiced sounds, in which a stream of air passes through a usually-fixed glottis, in voiced implosives a mobile glottis passes over a nearly motionless air column to cause vibration of the vocal cords.
These sounds occur in English, where they are denoted with letter combinations such as sh, ch, g, j or si, as in shin, chin, gin and vision. Retroflex (e.g. [ʂ]): with a flat or concave tongue, and no palatalization. There is a variety of these sounds, some of which also go by other names (e.g. "flat postalveolar" or "apico-alveolar").
Aperiodic sound sources are the turbulent noise of fricative consonants and the short-noise burst of plosive releases produced in the oral cavity. Voicing is a common period sound source in spoken language and is related to how closely the vocal cords are placed together. In English there are only two possibilities, voiced and unvoiced. Voicing ...
The voiced labial–velar approximant is a type of consonantal sound, used in certain spoken languages, including English.It is the sound denoted by the letter w in the English alphabet; [1] likewise, the symbol in the International Phonetic Alphabet that represents this sound is w , or rarely [ɰʷ], and the equivalent X-SAMPA symbol is w.
Nasal clicks are click consonants pronounced with nasal airflow.All click types (alveolar ǃ, dental ǀ, lateral ǁ, palatal ǂ, retroflex ‼, and labial ʘ) have nasal variants, and these are attested in four or five phonations: voiced, voiceless, aspirated, murmured (breathy voiced), and—in the analysis of Miller (2011)—glottalized.