CONDUIT COMPRISING AT LEAST ONE ANECHOIC TERMINATION COMPRISING A LOW FREQUENCY ACOUSTIC ABSORPTION MEANS AND A MEDIUM AND HIGH FREQUENCY ACOUSTIC ABSORPTION MEANS

摘要

The subject of the present invention is a conduit (2) comprising at least one anechoic termination (1), characterized in that the at least one anechoic termination (1) comprises a low frequency acoustic absorption means arranged at the level of the one of the ends of the duct (2), and a medium and high frequency sound absorption means disposed in the duct (2) upstream of the low frequency acoustic absorption means. The present invention also relates to a kit for equipping a duct with an anechoic termination and a test bench for acoustic duct characterization.