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3.Phonological classification of English consonants.

Consonants are known to have voice and noise combined, while vowels are sounds consisting of voice only. From the articulatory point of view the difference is due to the work of speech organs.

Russian phoneticians classify consonants according to the following principles: 1) degree of noise; dividing English consonants into two general kinds: a) noise consonants; b) sonorants.

2) place of articulation (front with the tip, middle, and back); 3) manner of articulation (a complete closure, then occlusive (stop or plosive) consonants are produced; b incomplete closure, then constrictive consonants are produced; c the combination of the two closures, then occlusive-constrictive consonants, or affricates, are produced; d intermittent closure, then rolled, or trilled consonants are produced); 4) position of the soft palate (oral and nasal); 5) force of articulation (fortis and lenis).

4. Phonological classification of English vowels.

Principles of the classification of vowels

  1. according to the horizontal position of the tongue,

  2. According to the vertical position of the tongue,

  3. Length

  4. Lip- rounding

  5. Tenseness

Parameters of the classification of vowels

  1. Horizontal : Front Mixed Back

  2. Vertical: High Mid-open Low

5.Sounds in connected speech (assimilation, vowel reduction and elision).

Assimilation is a regular and frequent sound change process by which a phoneme changes to match an adjacent phoneme in a word. A common example of assimilation is vowels being 'nasalized' before nasal consonants as it is difficult to change the shape of the mouth sufficiently quickly. There are four configurations found in assimilations: the increase in phonetic similarity may be between adjacent segments, or between segments separated by one or more intervening segments; and the changes may be in reference to a preceding segment, or to a following one.

Elision is the omission of one or more sounds (such as a vowel, a consonant, or a whole syllable) in a word or phrase, producing a result that is easier for the speaker to pronounce. Sometimes, sounds may be elided for euphonic effect.

Elision is normally unintentional, but it may be deliberate. The result may be impressionistically described as "slurred" or "muted."

Vowel reduction is the term in phonetics that refers to various changes in the acoustic quality of vowels , which are related to changes in stress, sonority, duration, loudness, articulation, or position in the word, and which are perceived as "weakening". It most often makes the vowels shorter as well.In phonology, vowel reduction refers to a reduction of the number of distinct vowels, rather than their quality, either over time or when comparing related dialects. In some cases these two concepts may be related. For example, when vowels are phonetically reduced in English, there is also a reduction in the number of vowel contrasts. In other cases, however, phonemic reduction is due to historical vowel mergers (such as the merger of the a vowels in Mary, merry, marry in much of the United States) and has nothing to do with "weakening".

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