Wednesday, 07 October 2009 19:18 Graham Williamson
ABSTRACT: Phonetics studies articulation, i.e. how the sounds of particular languages be articulated in particular contexts. This article explains the articulation of the 24 English consonants. They are categorized as either plosives, nasals, fricatives, affricates or approximants.
Introduction
We have seen elsewhere (article about speech) that (articulatory) phonetics is the subcategory of speech that studies articulation, i.e. how the sounds of particular languages are articulated in particular contexts. [The other subcategory is phonology.] This article is certified to a discussion of consonant sounds, for two reasons. First, vowel sounds are complex, and consequently difficult to describe. Second, in the majority of articulation disorders it is the consonants that are most disrupted, and so a focus on consonants stomach better help our understanding of speech disorders.
Consonants
Consonants are unlikable sounds. This means that in that respect is some type of obstruction to the flow of oxygenise from the lungs by parts of the mouth coming into contact with separately other, or very unspoiltly contacting, thus closing come to the free flow of air.
For example, the lips could come together for the sound b as in the word ball, or the tongue breath could almost contact the gum ridge (alveolar ridge) just privy the upper incisors for the sound s as in sun. These contacts, and near contacts, impede the free flow of air through the vocal music apparatus1. It is this kind of closure that characterizes consonant sounds. In English there are approximately 24 consonants and these are arranged into cinque main groups: (1) plosives, (2) nasals, (3) fricatives, (4) affricates, and (5) approximants. We will now consider each of these in turn.
[1] The vocal apparatus consists of the breathing mechanism, the larynx, and the vocal tract (i.e. the air passages above the larynx, consisting of the nasal and oral cavities).
Plosives
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