:See Cardioid, yes they are all of that form though of course the equation can change if the shape is moved around.
32.
As the centre and one of the two side antennas were powered at any given time, the resulting radiation pattern was a cardioid.
33.
The SM58 has been the most commonly used microphone for live vocals for more than 50 years demonstrating the importance and popularity of cardioid mics.
34.
Outrigger omnidirectional microphones, low-pass filtered at 250 Hz, are spaced 3 meters apart in line with the L and R cardioids.
35.
You can try for a cardioid radiation pattern, with a null towards the head, but as mentioned that will cause dropouts in one direction.
36.
This array uses back to back cardioid microphones, one facing forward, the other backwards, combined with either one or two figure-eight microphone.
37.
As b is decreased relative to a, the indentation becomes more pronounced until, at b = a, the cardioid, it becomes a cusp.
38.
The U 48 was identical to the U 47 except for the available polar pattern combinations ( cardioid and figure of eight instead of cardioid and omnidirectional ).
39.
The U 48 was identical to the U 47 except for the available polar pattern combinations ( cardioid and figure of eight instead of cardioid and omnidirectional ).
40.
The most common unidirectional microphone is a cardioid microphone, so named because the sensitivity pattern is " heart-shaped ", i . e . a cardioid.
