AKG PZM11 Professional Flush-Mount Boundary Layer Microphone

hi I'm Mitch Gallagher from Sweetwater we're talking about pzm and boundary microphones today museum microphones were invented around 1978 and crown actually manufactured the first commercially available PZ um's around 1980 pzm microphones has some great advantages the biggest one is that allows for phase coherent capture of audio there's no problem with reflections causing phase cancellation with the direct signal PCM microphones are constructed with small diaphragm condenser elements the capsule is mounted very close to the surface and there's a thin slot here that allows the sound to enter what this does is ensure that reflected sound and direct sound arrives at the capsule at the same time this pushes any phase cancellation that might occur way above human hearing because of this PCM microphones have very flat response particularly on the high frequencies pzm or pressure zone microp