Any microphone has a so-called polar pattern. This describes the change of the microphone output (electric voltage) when a sound source of constant loudness mover around the
microphone. This is a measure for the ability of the microphone to “hear” sound from various directions. An omnidirectional microphone pick up sound equally from any direction. The
polar patter is like a ball around the microphone meaning that is makes no difference in electric output from which direction the sound reaches the mic. The most common directional
microphone is the cardioid mic.<\/p>\n
The pattern is somewhat shaped like a heart or kidney. Such a microphone has full sensitivity – or highest output – when sound reaches the front of the mic. From the sides (- or + 90
degrees) the mic has about half of the output and in the 180 degree direction it has a point of minimum output. That means that from the rear (usually the connector side) the mic is
almost deaf with an output of only about 1\/10 to 1\/30 of the front output. Such a microphone is used if suppression of environmental sound is required in respect to direct sound.<\/p>\n
The hypercardioide has a slightly different pattern from the cardioide. It has a lower output at + or – 90 degrees and therefore has a more narrow angle of main sensitivity compared to
the cardioide. It does not have one point of minimum sensitivity but two at about + and – 140 degrees. Therefore the hypercardioid mic suppresses sound coming from both sides of
the rear direction. For this reason such microphones are preferred by singers on a stage because its usual to have monitor speakers at the sides of the singer. <\/p>\n","protected":false},"featured_media":0,"template":"","categories":[],"tags":[],"storecat":[],"itemids":[2316,19712,30053],"manufacturers":[33167],"acf":[],"yoast_head":"\n\n\n\n\n\n\n\n\n\n\n\n\n\t\n