Design of a loudspeaker system with a low-frequency cardioidlike radiation pattern

摘要

A low-frequency loudspeaker system has been designed and tested that has a cardioidlike radiation pattern. The system is based on a combination of a monopole and a dipole source. These sources are obtained by feeding two closely spaced loudspeaker drivers with specially preprocessed audio signals. The design has been tested with simulations and measurements on a laboratory test model.