Soundproof structure

Abstract

There is provided a soundproof structure that can not only have a peak of noise absorption at a specific frequency but also have a spread at the peak in order to suppress noise with a specific frequency. A soundproof cell includes a frame having a hole portion penetrating through both surfaces and at least one film fixed to at least one surface of the frame. The soundproof cell is disposed in an opening portion of a wall separating two spaces from each other in a state in which a surface of the film is inclined with respect to an opening cross section of the opening portion to provide a ventilation portion. All the surfaces of the at least one film are separated from the wall surface. A distance between the surface of the film on the side of the wall surface of the opening portion and the wall surface is 0.1 mm or more and is a distance set according to an absorption peak frequency at a spectral peak of soundproofing.

Dependencies are inferred from the claim text.