| 摘要 |
In the field of sound reproduction the movements of membranes have too high amplitude levels relative to the deformations of low amplitude levels propagated on the surfaces of materials of the objects which have emitted the original sounds. To remedy this, the method proposed by the invention is not concerned with higher sound efficiency, but it rather aims at exciting the particles of air by adding at least a membrane vibrating without emitting audible sound in the ambient medium. The method is characterised it that it uses low acoustic efficiency with high oscillating dissipation of low amplitude in the membrane material, and air, it is a physiological electro-acoustic transducer of air. An apparatus is produced characterised in that it has no magnet. Said physiological electro-acoustic transducer of air does not require yokes, membrane suspensions. The coil is electrically coupled to a sound reproducing system. The assembly is mounted fixed so as to vibrate freely on a support. Said method and apparatus are applicable in all types of sound, audio and audio-visual reproduction.
|
