LOUDSPEAKER Russian patent published in 2021 - IPC H04R1/02 

FIELD: acoustics.

SUBSTANCE: invention relates to loudspeakers. Loudspeaker has a housing, a first acoustic driver, a first mounting device with a linear movement mechanism, a second acoustic driver, second mounting device having a rotary mechanism. Mounting devices are made so that at least one driver device can be located in relation to the housing at least in the first position and in the second position, and, in particular, in the intermediate position. In the first position, the main direction of sound propagation of the second driver device is substantially parallel to the front side of the housing. In the second position, the main direction of sound propagation is substantially perpendicular to the front side. Loudspeaker is also provided with a low-frequency driver mounted on the resonant skin. Loudspeaker is equipped with a sensor for determining the human position. In operation, loudspeaker operates in first operating mode if most persons in loudspeaker zone are in sitting position, and the loudspeaker is operated in the second operating mode if the majority of persons in the loudspeaker zone are in a standing position.

EFFECT: technical result is improved characteristics of spatial sound and sound balance.

14 cl, 7 dwg