Medical sound insulation room (audiometry room) and electromagnetic shielding room are a special customer group. We have provided services for Beijing Tongren Hospital, Fudan University Eye and ENT Hospital, Renji Hospital Affiliated to Jiaotong University, Shanghai Women's and Children's Hospital, Shanghai Deaf Children Rehabilitation Center, Shanghai Assistive Devices Center, Shenzhen Disabled Persons' Federation, Hubei Provincial Deaf Children Rehabilitation Center, Chinese Assistive Devices and other users have provided customized products. A hospital is a place with a sufficiently complex background noise, especially loud crowds. We have developed a very attractive acoustic test system that can effectively demonstrate the noise level in the soundproof room and outside the soundproof room. When people see this After the data is collected, it will actively cooperate with the loud noise, which not only effectively reduces the environmental noise, but also understands the noise level of the soundproof room and the environment in real time.