Speech sounds can be identified in terms of their articulatory properties that is, where and how in the vocal tract that the sounds are produced.
Consonant sounds are produced by completely or partially blocking the flow of air from the lungs to the vocal tract (Finegan, 2008).
Do you know that in English, there are 44 phonemes (24 consonants and 20 vowels).
The phonemes below are used throughout this site.