" psychoacoustic "

 [ "Psychoacoustics" ]

1: Psychoacoustics /ˌsaɪkoʊəˈku stɪks/

  * e.g.,  ... Research in psychoacoustics has led to the development of noise-cancelling headphones, which use sound wave properties to reduce unwanted ambient noise, providing a clearer and more immersive listening experience for users. 

 [ "Psychoacoustics" ]

2: (noun) The study of the psychological and physiological aspects of hearing and how humans perceive sounds. It explores how sound waves are transformed into auditory sensations and how these processes relate to factors such as sound localization, pitch perception, loudness, and the quality of sound. The term "psychoacoustics" is derived from a combination of "psycho," meaning "mind" or "psychological," and "acoustics," which refers to the science of sound. This reflects the field's focus on the intersection of psychological processes and acoustic phenomena. Genealogy of the Word Psycho-: From the Greek "psyche," meaning "breath, life, soul," later associated with the mind or psychological processes. It's commonly used as a prefix in English to denote psychological aspects or processes. Acoustics: Originates from the Greek word "akoustikos," meaning "of or for hearing," derived from "akouein," which means "to hear." Acoustics as a scientific term refers to the study of sound, its production, transmission, and effects.