This document provides an overview of phonetics and phonology. It begins by defining phonetics as the physical aspect of sounds and phonology as including phonetic transcription with allophones. It then describes the speech organs involved in sound production, including the vocal cords, pharynx, tongue, uvula, teeth, and lips. It classifies vowels and consonants according to their place and manner of articulation. It discusses vowel height, position, rounding, and length. For consonants, it covers voicing, aspiration, plosives, fricatives, affricates, nasals, laterals, and glides. It also discusses syllabic consonants, fortis and lenis conson