| 摘要 |
<p>The invention pertains to a microphone arrangement consisting of three pressure gradient transducers (1, 2, 3), each with a diaphragm and a housing, with each pressure gradient transducer (1, 2, 3) having a first sound inlet opening (1a, 2a, 3a), which leads to the front of the diaphragm, and a second sound inlet opening (1b, 2b, 3b), which leads to the back of the diaphragm, and in which the directional characteristic of each pressure gradient transducer (1, 2, 3) contains an omni portion and a figure-of-eight portion as well as a direction of maximum sensitivity, in the main direction, and in which the main directions of the pressure gradient transducers (1, 2) are inclined relative to each other. In order to be able to produce a B-format, the acoustic centers of the three pressure gradient transducers (1, 2, 3) lie within an imaginary sphere whose radius corresponds to the double of the largest dimension of the diaphragm of a pressure gradient transducer (1, 2, 3), with the projections of the main directions of the three pressure gradient transducers forming angles with each other, whose values lie between 110° and 130° in a base plane spanned by the first sound inlet openings (1a, 2a, 3a) of the three pressure gradient transducers (1, 2, 3 ).</p> |
