| 摘要 |
The invention concerns a method and apparatus for producing an acoustic chamber provided with at least an electroacoustic transducer with adjustable acoustic load. The structure of the chamber consists of telescopic modules or resilient or extensible structures, for adjusting the acoustic load, the volume of which is open in front or at the back of the transducer. An accordion mounting of the structure in the form of bellows, determines the cavities (9) providing an acoustic fineness to the apparatus adjustable in front (3) or at the back (4) of the electroacoustic transducer. The structures in thin folded aluminium or metal or metal alloy sheets represent a structure with resilient chambers for implementing this method. The appliances have the properties of being foldable, light and with acoustic features ensuring a natural ambience, and the field of its use is the whole audio and audio-visual world. |
