RION - Model UC NH Series - Condenser Microphones - Datasheet

Sound field and sound pressure models In ordinary measurements, the placement of the microphone has an impact on sound pressure at the measurement point at high frequencies. Sound field microphones are designed to flatten frequency characteristics by taking that impact into account in advance. They are used for ordinary measurements. In contrast, sound pressure microphones are designed to have flat frequency response for the sound pressure applied to the diaphragm without taking the impact on the surrounding sound field into account. They are used for measurements in reverberant room or using couplers.