Randy Coppinger is obsessed with microphones. He collects them, takes pictures of them and posts to social networks about them. Needless to say, he knows A LOT about this piece of gear. In his latest blog post Randy explains how a shotgun microphone works.
The long tube with slots on the sides visually distinguishes the shotgun microphone from others. Designed to be more directional than conventional microphones, how does that long cylinder with notches increase the ratio of on-axis to off-axis sound?