The core of acoustics lies in exploring the nature and characteristics of sound waves - sound waves, as a form of mechanical vibration, propagate through media (gases, liquids, solids). Their frequency range is extremely wide (ranging from subsonic waves at 0.0001 Hz to ultrasonic waves at 10¹² Hz), and different frequencies of sound waves have distinct application scenarios: 

Infrasound (<20Hz): Low-frequency vibrations generated by earthquakes and tsunamis, which can be used for disaster warning.

Audible sound (20Hz - 20kHz): Sounds that humans can perceive, including language communication, music acoustics, and noise control.

Ultrasound (>20kHz): Such as medical ultrasound imaging, industrial flaw detection, cleaning and disinfection, etc.

Extra-ultrasound (>10⁹Hz): Used for microscopic structure research (such as surface acoustic wave sensors).

1. Physical and mental health (free from infectious diseases and without any physical or mental disorders that affect normal learning). 

2. By September 1, 2025, the applicants for the master's program should be no older than 30 years of age. 

3. Educational Requirements: As of September 1, 2025, applicants for the master's program must have a bachelor's degree. 

4. Learning ability: Applicants should possess good learning ability and academic performance. The required score for the previous stage of application for applicants is 75%, and for those applying for the Chinese Government Scholarship, it is 80%. Applicants can provide other proof of their learning ability or academic performance such as GRE, GMAT, etc. 

5. Language Requirements 

The applicant should possess the required language proficiency in both Chinese and English as per the admission criteria.

1. A clear and legible scanned copy of the passport information page.

2. A scanned copy of the bachelor's degree certificate.

3. Scanned copies of the semester/academic year transcripts for each period of the undergraduate study. 

4. Recommendation letters provided by 4 experts or above at the associate professor level.

5. The applicant's study plan for pursuing a master's degree. 

6. Chinese (HSK) / English (IELTS or TOEFL or Duolingo or PTE) language proficiency certificate; 7. No criminal record certificate (valid within 6 months); 

8. Letter of Acceptance from the Supervisor: