Planar speaker edge

摘要

A complex speaker edge in which the acoustic vibration damping capacity of the speaker edge varies longitudinally around the speaker edge in rough proportion to the radial distance of the instant section of the speaker edge from the center of the source of acoustic vibration. The vibrational damping capacity of the speaker edge can vary gradually or abruptly in a stepwise fashion. The complex speaker edge is adapted for use in planer speaker assemblies with high aspect ratio planar resonator plates. The effectiveness of the differential damping capacity in improving the quality of sound output from a speaker assembly is determined by observing the average magnitude of the excursions of the sound level pressure versus frequency curves for comparable complex and single speaker edges, particularly in the 200 to 10,000 Hertz range.