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English phonetics
English phonetics
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Defining& Classes of vowel Sounds/ English phonetics Empty Defining& Classes of vowel Sounds/ English phonetics

في الأربعاء ديسمبر 07, 2016 8:53 pm

Defining& Classes of vowel Sounds/ English phonetics
Defining Vowel Sounds1
A vowel sound has three characteristics / qualities:
1) Vowel sounds are commonly voiced.
2) A vowel occupies the nucleus of a syllable.
3) In the production of vowel sounds there is no complete closure and no stricture [ narrowing ] close enough to cause friction, i.e. in producing vowel sounds the airstream passes out freely through the vocal tract.
A significant sound : is a sound that changes the meaning of the word if it is used instead of another sound.
Sounds that affect meaning in words are called phonemes.
The same letter may be pronounced in different ways, depending on the phonetic context in which it occurs.
The same vowel letter, may combine with other vowel letters to form different vowel phonemes.

1) A vowel letter may have different pronunciations.
2) The same combination of two vowel letters ( e.g. o + u ) may have different pronunciations.

2)Classes of vowel Sounds
IPA Chart ( International Phonetic Association/Alphabet)
The IPA chart is a ''reference chart'' which phoneticians use to describe the sounds of human languages. The points on the IPA are standard points according to which all vowel sounds in any human language can be described. They are called Primary Cardinal Vowels.
Primary cardinal vowels 1-5 are unrounded [lips spread] and 6-8 are rounded [lips not spread].
Vowels are produced in a relatively small area of the mouth. The tongue and the lips play an important role in producing vowel sounds.
• Vowels can be classified according to:
(i) Tongue height in the mouth:
This refers the position of the highest point of the tongue in forming the vowel and here phoneticians distinguish three positions:
• High: It is close to the roof of the mouth, e.g. seen.
• Low: It is open, e.g. farm.
• Mid: It is intermediate, e.g. bird.


(ii) Tongue position in the mouth:
This refers to how far forward or back is the highest point of the tongue?
• Front – correlated to a palatal consonant e.g. seen.
• Back – correlated to a velar consonant e.g. pool.
• Central – e.g. bird.

(iii) Lips position ( or shape):
Here two major positions are recognized:
• Rounded : as in the vowel sound in horse.
• Unrounded [or spread]: as in the vowel sound in ship.
Vowels sounds are further classified according to whether they are:
• Short
• Long
• Diphthong
3) Short Vowels
There are 7 short vowel sounds in RP.

4) Long Vowels
There are 5 long vowel sounds in RP.

5) Diphthongs
A diphthong is a complex vowel sound which changes its quality within a single syllable. A diphthong has an initial quality and a different end quality.
There are 8 diphthongs in RP.


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مدام نوجا
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Defining& Classes of vowel Sounds/ English phonetics Empty رد: Defining& Classes of vowel Sounds/ English phonetics

في الأحد ديسمبر 18, 2016 10:00 pm

Great, thanks


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