Impact noise and walking noise modelling

The CEVAA offers vibro-acoustic simulations in order to improve the impact noise and walking noise performance of multilayer flooring.

Improve building acoustics

Impact noise characterizes the propagation of impact noise from one room to another through the structure, in particular the floor (object falling to the floor, noise of heels, etc.). Impact noise is characterized by the indicator ΔL (and its weighted index Δlw). This represents the difference in the sound measured in the reception room between a standardized reference floor and the floor to be tested.

Walking noise, on the other hand, uses the same configuration as that used for the impact noise but differs by the measurement of the sound in the room emitting the impact noise. The modeling is based on the EN ISO 10140-3 test standard. Indeed, it takes up the dimensions of the rooms, the placement of the microphones and the excitation generated by an automatic impactor standardized according to the Cremer model.