Sony Dead Cat

So I bought the accessory door pack for the Sony Action Cam, $50 for the flat underwater door and the “enhanced” audio door, ouch. The audio door is what I wanted, it has two openings in the waterproof case door where the built in stereo mics are. But over the two holes is a membrane, it is most likely a GoreTex like membrane found in the LifeProof iPhone case. It allows air to pass, but not liquid water. So it should improve audio recording while maintaining waterproofness to a Sony claimed 10 meters. It still suffers from wind noise so I decided to do the Dead Cat treatment to it also.For this application I decided to make it removable since using it under wet conditions would be useless as a, well, wet cat. So ran to the store and found some heavy duty adhesive Velcro. Cut a piece out to fit and punched holes for the mic. The challenge was the mic position is right below the lens, so there isn’t much roof for fuzzyness or it’ll block the lens. I needed to give the cat a haircut.

So does it work? Marginally. It helps to cut ambient wind noise, but once you start moving forward it quickly becomes overwhelmed. The mic position on the Sony is a perfect ram air induction, good for hot rods, not good for audio recording.