US Patent 8009852 Microphone windguard

A windguard for a microphone includes an acoustic inlet at a downstream end and at least one pressure-relief port upstream of the acoustic inlet. The windguard has a base, a skirt depending from the base, and a first hood projecting from the base. The base and skirt provide space to accommodate the microphone. The first hood extends from an upstream end of the base to the downstream end and includes the acoustic inlet at the downstream end. The pressure-relief port(s) is located on the first hood at the upstream end and is protected by a second hood.