21. Since the cardioid polar pattern rejects off-axis sound, less of the ambient room characteristics are picked up. 22. Not every hyperbolic component can be reached by a sequence of direct bifurcations from the main cardioid of the Mandelbrot set. 23. The surround microphones are backwards facing cardioid microphones, that are placed 40 cm back from the L and R microphones. 24. Are you asking if you're a super-human who can survive even with his cardioid arteries pinched shut? 25. If monitors are oriented at 180 degrees to the microphones that are their sources, the microphones should have a cardioid pickup pattern. 26. All four cardioid microphones are backward facing and angled at 60 degrees from one another, therefore similar to a semi-circle. 27. This created a series of spikes, or lobes, within the cardioid radiation pattern, each about 7.5 degrees wide. 28. The cardioid family of microphones are commonly used as vocal or speech microphones, since they are good at rejecting sounds from other directions. 29. In three dimensions, the cardioid is shaped like an apple centred around the microphone which is the " stem " of the apple. 30. Here, four cardioid microphones, 90 degrees relative to one another, are placed in square formation, separated by 21 25 cm.
