Similar to other microphones, the boundary microphone is commonly used to record wider audio past a single user, typically beneficial to capture larger rooms full of music or sporting events.
How do they work?
A small omnidirectional mic capsule is placed near the surface of the microphones boundary. This allows it to pick up directional signals of audio much better than a typical microphone.
Features and benefits:
Can capture sounds from multiple sources
Small and compact, easy to store
Can record great distances
Where might I use one?
To capture key moments within sporting events like football, hockey etc.