Most MEMS microphones are designed for omnidirectional pickup. Soundskrit uses Two Sound Ports together with a redesigned MEMS transducer to provide directional pickup from a single compact microphone, while maintaining high sensitivity and reducing sound coming from certain directions.
Piezo plates may look simple, but their terminal design, feedback position, and overall structure can affect how they are driven and where they are used. This article introduces common piezo plate types and the double-sided structure often used in high-SPL applications.