Psychoacoustics/(心理声学) -> Disciplines of Study [DoS]/(多学科研究)Psychoacoustics/(心理声学) -> Theory/(理论) -> Step 3 Undergraduate/(第三步大学) -> Years Group/(年级群)Psychoacoustics/(心理声学) -> Disciplines of Study [DoS]/(多学科研究) -> CHEARS/(启耳思)