| 摘要 |
The invention concerns a sound absorption assembly (1) comprising a body (2) having a tubular shape having ends closed respectively by first and second tensioned flexible micro-perforated layers (3, 4), and at least one planar diaphragm disposed inside the tubular body (2), between the flexible micro-perforated layers (3, 4), so as to delimit two spaces (6, 7) between said layers. |
