Sound attenuating chamber for loudspeaker pure tone online detection

The utility model relates to a sound attenuating chamber for loudspeaker pure tone online detection. A loudspeaker baffle plate is installed in the center of the upper plane of the shell of a chamber body. Two longitudinal vertical plates are symmetrically and fixedly installed in the chamber body. Transverse vertical plates are symmetrically and fixedly installed between the two longitudinal vertical plates. A microphone supporting plate is horizontally and fixedly installed in a square chamber formed by the four vertical plates. A microphone is installed on a support. The longitudinal vertical plates, the transverse vertical plates and the supporting plate are of sound-attenuating porous plates. The inner wall of the shell of the chamber body is covered by a lining wrapped by gauze. Air layers forming resonant cavities are left between the lining of the chamber body and the longitudinal vertical plates and between the lining of the chamber body and the transverse vertical plates. The utility model has the a