Loudspeaker diaphragm

The invention relates to a loudspeaker diaphragm (12), a loudspeaker driving unit and a loudspeaker sound box. The loudspeaker diaphragm comprises a woven fibre body 14 supporting damping material 25, for example PVA polymer applied by spin-coating, on a rearward-facing (in use) surface (24). The mass of the layer of damping material (25) may be significantly greater than the mass of the woven fibre body. The woven fibre body may be formed of lengths non-metallic fibre material (for example glass fibre) coating with a thin metal coating (32), preferably aluminium, which in turn is protected by a layer of lacquer (34). An attractive sparkly looking loudspeaker diaphragm (12) may thus be provided which damps undesirable vibration whilst providing a flatter frequency-response curve (50). 本发明涉及一种扬声器振膜(12)、扬声器驱动单元和扬声器音箱，该扬声器振膜包括编织纤维体，该编织纤维体在面朝后方的表面(24)上支撑例如PVA聚合物等阻尼材料(25)。编织纤维体可以由包覆有薄金属覆层(32)的非金属纤维材料(例如玻璃纤维)的节段(14)形成。阻尼材料(25)的层的质量可以明显大于编织纤维体的质量。因此，可以提供使不合乎需要的振动减弱同时呈现较平坦的频率响应曲线(50)的看起来具有引人注目的闪耀外观的扬声器振膜(12)。