| 摘要 |
PURPOSE:To dissipate a internal standing wave by having a cabinet box and a sound wave delay plate composed of many acoustic paths installed so that the internal space of a cabinet box can be divided, and making different the ratio of the apparent length of respective acoustic paths with the effective length along the path of the sound wave over the whole surface of a sound wave delay plate in terms of locations. CONSTITUTION:A honeycomb core composed of a cardboard, synthetic resin, alloy plate, etc., an aggregate, which mutually bonds the pipe composed of materials of various kinds, constitution in which the plate material of two systems or above is assembled in a lattice shape, or the constitution which is formed in a single body with the hole which becomes an acoustic path with a synthetic resin, a cardboard laminated body, etc., and the like, can be used as an acoustic delay plate. The thickness of the acoustic delay plate is changed and formed on a curved surface, thus, the length and inclination of an acoustic path for the standing wave amplitude shaft are changed in terms of locations, made oblique for the internal standing wave amplitude shaft of the cabinet box in a cabinet box 1, and fixed at a cabinet wall body so that the internal space can be divided. |
