The microphone is free of roar

摘要

P microphone free of roar and comprising two elements having substantially the same shape and disposed so that an element is in practice, the reflected image of the other element, while the membrane of each element of the microphone is connected to at least one volume of air and that the volume (s) (s) of air (s) linked to a microphone is (are) separated (s) of the (of the acoustically) volume (s) of air (s) linked to the other element of the microphone by a partition so that the two elements of the microphone are electrically interconnected, those - these are controlled in the same phase with respect to the desired sound vibrations and in phase opposition with respect to mechanical vibrations. / p & & p & the elements are elements of the microphone to a capacitor, and an electrical circuit is formed in said partition application: recording equipment by magnetic means. / p