| 摘要 |
#CMT# #/CMT# The method involves placing a film (1) in front of a membrane of a loud speaker (2) whose aft wave is dissipated in ambient space (3). The film covers a front side (4) of the loudspeaker and acts as a membrane which filters acoustic pressures. The film becomes an acoustic reference and the membrane is activated by natural sound such as concert sound or direct show sound. The film has a surface transposing sound waves projected by the interior of sound wave cone. #CMT# : #/CMT# An independent claim is also included for a device for smoothing sound wave of loud speaker. #CMT#USE : #/CMT# Used by a telephone, television, computer, cinema home theatre in vehicle, truck, ship, airplane, radio, direct show in concert hall and audiovisual field, medical and auditory fields and in sound reproduction field for acoustic smoothing of sound wave produced by a loud speaker (all claimed). #CMT#ADVANTAGE : #/CMT# The method allows to dissipate the aft wave in the ambient space and to isolate the front of the membrane of the loud speaker by the film. The film effectively filters and regulates acoustic pressures and distributes them along its surface. The film regulates the sound waves following coherence in a better manner, while avoiding excess of fatal pressures due to auditory lesions. The film permits to reproduce the sound spectrum diffused by the loud speakers in a simple and homogenous manner. The film performs a better filtering operation and produces visible deformations so as to regulate amplitudes, while eliminating acoustic aberrations and providing excellent acoustic coherence. The film provides harmonics in perfect acoustic phase and protects ears from excessive aggressivity of the front cones of the membrane and smoothes the sound waves in a better manner. The film regulates and correlates temporary space acoustic deformations, generated by the hall, in a better manner. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows an arrangement for implementing a sound wave smoothing method. 1 : Film 2 : Loud speaker 3 : Ambient space 4 : Front side 5 : Air cushion. |
