Phonetics is derived from the Greek word "phōnē," which means "sound, voice." It is the study of the sounds of human language, including their production, perception, and physical properties.

Hilda B. Fisher has written:

'Improving voice and articulation' -- subject(s): English language, Phonetics, Voice culture

There are three main branches of phonetics:

i) Articulary Phonetics

ii) Acoustic Phonetics

iii) Auditory Phonetics

Try Googling 'phonetics exercises' or 'exercises for phonetics'

what is scope of phonetics