CLASSIFICATION QF ENGLISH SPEECH SOUNDS A dichotomy of English speech sounds: 1.Vowels:Speech sounds which are produced with no obstruction whatsoever of the vocal tract,so no turbulence or a total stopping of the air can be perceived. 2.Consonants:Speech sounds which are produced by constricting or obstructing the vocal tract at some place to divert,impede,or completely shut off the flow of air in the oral cavity.CLASSIFICATION OF ENGLISH SPEECH SOUNDS  A dichotomy of English speech sounds:  1. Vowels: Speech sounds which are produced with no obstruction whatsoever of the vocal tract, so no turbulence or a total stopping of the air can be perceived.  2. Consonants: Speech sounds which are produced by constricting or obstructing the vocal tract at some place to divert, impede, or completely shut off the flow of air in the oral cavity