C.Classification of the vowels.1.Principles of quality-tongue position+horizontal ( tongue part )Front vowelsCentral vowelsHigh vowels1. Voiced i,e. they are produced with the vibration of the vocal cords2. Sonorant. Acoustically, vowels ares louder than consonantC. DescriptionThe vowel can be decribed in terms of articulatory and audiotory paramesters:Tougue positionsShapes of lipsMouth aperture
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