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Special sound sources for "exotic" sounds (Infra- and Ultrasound)

Since the project focuses on the hearing sense when researching the mechanisms of airborne infrasound (IS) and ultrasound (US) perception, sources are required which will supply the sound directly into the ear canal, i. e.,...


MEMS array development

A prototype device for locating sources of airborne ultrasound has been designed and produced, and is ready for testing. The device consists of an array of eight MEMS microphones optimised to operate in the ultrasound frequency...


EARS II at 12th ICBEN Congress in Zurich

Two presentations about results and prospects of the project were given at the 12th ICBEN Congress on Noise as a Public Health Problem which was held in Zurich, Switzerland from 18 to 22 June 2017. In a key note lecture the EARS...


A welding machine for the definition of a reference ultrasonic workplace

IFA from DGUV and PTB defined a typical ultrasonic welding workplace setup that can serve as a reference for the variety of workplaces exposed to ultrasonic noise. The source is a standard ultrasonic welding machine by the...


Stakeholder Advisory Group

The stakeholder advisory group (StAG) under the chairmanship of Graham Frost has been active in assisting with the specification of ear simulators. Stakeholders have been consulted on their views on how the new family of devices...


Two collaborators for the measurement of ultrasonic noise

Two new collaborators were incorporated to the project. Herrmann Ultraschalltechnik GmbH & Co. KG is a leading manufacturer of ultrasonic welding machines and contributes with equipment and knowledge on the state-of-the-art...


Ultrasonic noise at working places at DAGA2017 in Kiel

IFA from DGUV and PTB had four contributions to the session “noise at working places” at DAGA (German annual conference on acoustics) 2017 in Kiel. One talk and three poster presentations on the measurement, assessment and...

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Ears Gallery