The reverberation laboratory was built according to GB/T 20247-2006(ISO 354：2003), aiming at testing and studying the sound absorption property of material and structure, as well as the acoustical power of small-size sound source and the insertion lo
sound isolation chamber
The sound insulation laboratory was built according to GB/T 19889.1-2005（ISO 140-1：1997,IDT）, aiming at measuring the air sound insulation property of walls, doors, windows and other building structures. The laboratory is composed of sound generation
muffler dynamic evaluation lab
The laboratory was built according to GB/T25516-2010(ISO 7235：2003,IDT), aiming at measuring the insertion loss, total pressure loss and airflow noise of ventilation muffler, elbow, T-connection tube and equipments at the terminal end of air duct.
impedance tube laboratory
The laboratory is aimed at measuring the sound absorption and insulation properties of small test pieces in the normal incidence condition. It is mainly used as comparison test in the study process of material and structure.