Frank selected two Electro-Voice 635A omnidirectional mics. Imagine your reporter holding the top microphone within about 2 or 3 inches of their mouth, while the bottom microphone is pointing away from the mouth. Crowd noise is picked up equally by each 635A mic, thus the crowd noise is suppressed — virtually canceled!

You can experiment with pattern types; Frank finds that it works best with identical omnidirectionals, and the 635As are inexpensive, under $150 each.

The first photo shows the parts you’ll need to construct this project. Once you’ve gathered them, follow Frank’s step-by-step instructions.