A novel design of two-way multimedia loudspeaker
A multimedia loudspeaker usually stands on a desk, so the reflected sound from the desk interferes with the direct sound from the loudspeaker. Reflected sound from the desk must be taken into consideration in the designing process in order to obtain the flattest possible resultant frequency response in the listening position. This paper introduces a novel design of a two-way multimedia loudspeaker, which gives flat frequency response at broad range of distances from the listener.
A High Fidelity Small-sized Loudspeaker
Although bass sound reproduction through a small-sized loudspeaker requires large diaphragm displacement, the conventional supporting system cannot vibrate at an amplitude large enough for high-quality bass sound reproduction. A new supporting system is proposed which solves the problem of the conventional supporting system and focuses on the high excursion supporting system in terms of structure and displacement mechanism, in comparison with the conventional system. Using the supporting system with improved amplitude linearity and a driving system with a high force factor, a small-sized loudspeaker 8 cm in diameter has been developed. Despite the small diameter, this loudspeaker provides a large diaphragm displacement of /spl plusmn/8 mm, and therefore has superior bass sound reproduction characteristics.
On the Elastic Properties of the Corrugated Diaphragm
The elastic properties of the corrugated diaphragm loaded by an uniformly distributed pressure or a concentrated force were analysed here by assuming it as a circular anisotropic elastic thin plate. The calculated results concerning to the load v.s. max. deflection curve and also to the stress distribution, coincide with the corresponding experimental results very well.