Abstract: A wind break device for a microphone includes an airflow diverter and a flow separation edge partially bordering a microphone end of the airflow diverter. The microphone zone located between the flow separation edge and is part of the recirculation zone. The microphone is located in the microphone zone. Airflow separates from one of the airflow diverter or the flow separation edge. The separated airflow is directed as one of recirculating airflow or a major airflow and the recirculating airflow is directed into the recirculation zone. The major airflow is directed over the microphone zone and the recirculation zone to reduce the level of pressure fluctuations experienced by the microphone in the microphone zone.

Abstract: An airflow guard for a microphone includes a shell having an airflow diverter and a flow separation edge. The airflow diverter partially surrounds the microphone to redirect a flow of air away from the microphone. The flow of air separates from one of the airflow diverter or the flow separation edge. An acoustic reception system for a mobile vehicle and a hands-free communication device are also disclosed.