A microphone that picks up sound from the front of the unit. Also called a "unidirectional" mic, the term cardioid comes from "kardia," which means heart in Greek. The cardioid mic pattern loosely ...

Fulcrum Acoustic announced the introduction of two additions to the company’s CCX range of compact coaxial passive cardioid loudspeakers: the eight-inch CCX8 series and the 15-inch CCX15 series. The ...

A lab in Vienna has used stem cells to create thousands of tiny heart-like structures. Each miniature heart, dubbed a “cardioid,” is the size of a sesame-seed and has a hollow chamber that beats.