Sound-absorbing device for a wall covering, ceiling covering, or floor covering

摘要

A sound-absorbing device for a wall covering, ceiling covering, or floor covering has a support that comprises at least one sound-absorbing layer made of polymer foam. The layer constitutes a plurality of protrusions. The protrusions are arranged with a distribution such that a straight line that is continuous over the surface of the support is not projectable through the interstices.