Sound transmission and radiation device has sound waves fed to spaced openings for radiation of sound provided in or beneath surface of cushion or mattress

摘要

The device is provided as a flat cushion or mattress body (1) supported by a frame and provided with a number of spaced openings (5) for radiation of the sound waves in or immediately beneath one of its major surfaces (3,4), communicating with perforated sound channels, coupled to one or more electroacoustic transducers, integrated in the frame together with associated electrical and/or electronic circuit components, or provided by an external electroacoustic unit (9).