Psycho-acoustic refers to the study of how sound affects human perception. Synonyms for this term include psychoacoustics, auditory psychology, and sound psychology. These words refer to the same field of study that explores the relationship between sound waves and human hearing. Psycho-acoustic techniques are often used in music production, sound engineering, and acoustics research. Understanding how sound is perceived by humans is crucial in designing effective audio equipment, optimizing sound systems, and creating immersive experiences for audiences. Therefore, synonyms for psycho-acoustic, such as auditory psychology, sound psychology, and psychoacoustics, are important to know for anyone involved in the audio industry.