Thus, phonetics can Articulatory Phonetics: the study of the production of speech sounds. Acoustic Phonetics: the study of the physical properties of speech sounds. Perceptual/Auditory Phonetics: the perception of speech sounds.Thus, phonetics can be classified into: • Articulatory Phonetics: the study of the production of speech sounds. • Acoustic Phonetics: the study of the physical properties of speech sounds. • Perceptual/Auditory Phonetics: the perception of speech sounds