| 摘要 |
<p>The accordion prim chamber is made from a hollow enclosure (1) featuring a resonance chamber (1'), which is open on one side (2) and provided for being linked to the bellows, while on the other side it is partly covered with a net (3). Behind it there is a burr (4) with keys (5), while inside the chamber (1') there is a resonance panel (6), which divides chamber (1') between the bellows and net (3) so that the sound elements (7) are located on it. The resonance panel (6) can be positioned slant, so that on this section (6') there is room for up to two sets of sound elements (7), which are lying staggered regarding the other sound elements (7), whereas the burr (4) is reinforced in such a way that its rear wall (8) is standing out in such a way that at the burr it produces a hollow area (11), where the areas (11 and 11'') are separated with a partitioning segment (13), which is preferably standing out towards the area (11') and slant in such a way that the volume of chamber (11'), which is located within the burr, is smaller in the area of sound elements for lower tones and larger in the area of sound elements for higher tones.</p> |
