| 摘要 |
<p>An omnidirectional sound emitter with separate sound sources (1, 2), each comprising a funnel-shaped horn (4), is characterised in that the sound sources (1, 2) are mutually arranged such that the acoustic main axes (6) of the horns (4) lie in essentially one and the same plane (7) and the sound-emitting open ends (8) of the horns are directed towards the central portion of the sound emitter and located at a distance (BS; BD) from one another. Slot-shaped openings (9) are so arranged between the open ends (8) of adjacent horns (4) that sound emitted by the horns is caused to pass in a direction from the sound emitter through the slot-shaped openings (9), thereby to be dispersed through 360o in the said plane (7) such that the sound representation from the sound emitter corresponds to the sound representation from a line source perpendicular to said plane (7).</p> |
