It is True that Articulatory phonetics is the study of the physical production of speech sounds, via the vocal organs and Acoustic phonetics is the study of the physical properties of speech sound waves in the air.
Step-by-step explanation:
Articulatory phonetics is the study of the way the vocal organs are used to produce speech sounds. It is concerned with the transformation of aerodynamic energy into acoustic energy. Aerodynamic energy refers to the airflow through the vocal tract. Its potential form is air pressure; its kinetic form is the actual dynamic airflow.
Whereas Acoustic phonetics is the study of the physical properties of speech sounds and aims to analyse sound wave signals that occur within speech through varying frequencies, amplitudes and duration. One way to analyse the acoustic properties of speech sounds is through looking at a waveform.