At GRAS we are pleased to introduce the answer to the challenges of infrasound measurements: The 47AC 1/2” CCP Infra-Sound Microphone Set.

Have you ever heard a snail eating salad leaves or a caterpillar crawl on a glass?

At AISE, which is the ALMA International Symposium & Expo 2016 on January 2-4, our founder and owner Peter Wulf-Andersen presented a paper with the topics Measurement Microphones, Ear Simulators and Headphone Testing.