The best area of rejection for a Cardioid microphone is at what degree?

The area of rejection for a cardioid microphone is primarily at 180 degrees. This means that the microphone is designed to pick up sound most effectively from the front, while rejecting sound from the rear. A cardioid microphone has a heart-shaped polar pattern, where the sensitivity is highest directly in front of the microphone (0 degrees) and gradually decreases until it reaches a significant rejection at the back (180 degrees).

This design is advantageous in live sound situations or recording environments where ambient noise and feedback from monitors need to be minimized. By rejecting sounds coming from the rear, the cardioid microphone helps to isolate the desired sound source, resulting in clearer audio capture. Therefore, identifying the angle of greatest rejection as 180 degrees accurately reflects the characteristics of cardioid microphones and their intended usage in show production and sound reinforcement.