Founded in 1995, Fischer-Zoth Diagnosesysteme developed and manufactured products for the detection and diagnosis of hearing disorders. As a developer of proprietary, patented signal processing software, the company improved traditional OAE technology, enhancing the performance of OAE devices. In 2004, Natus Medical Incorporated acquired Fischer-Zoth. Fischer-Zoth is now a division of Natus Europe, GmbH, headquartered in Munich, Germany. Natus continues to develop, manufacture and support the echo-screen hearing screener
Echo-Screen, AOAE, and AABR are trademarks of Natus Medical Incorporated.