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Vestibular responses to low-frequency and infrasound

The ability of airborne infrasound to elicit responses from the vestibular system was studied. It is often rumoured that this non-auditory pathway is particularly sensitive to acoustic infrasound stimulation on the grounds that...


Hearing threshold measurements for infrasound combined with audiosound

Since infrasound exposure on humans is usually accompanied by sound in the conventional hearing range (between 20 Hz and 20 kHz, hereafter called “audiosound”), it is highly valuable to investigate which role the combination of...


Development of a measurement technique for airborne ultrasound

IFA and PTB now developed a first draft of a new method for measuring the exposure of a worker to ultrasound noise.


2nd project Meeting in Oldenburg

The 2nd meeting of the complete project team was held on November 21-22 in Oldenburg (Germany). The two days were filled with interesting presentations, exciting results and fruitful discussions. All are equipped now with new...


Second Newsletter published!

The 2nd Newsletter has been published. Among others, it contains highlights on the universal ear simulator, the reference workplace, special sources and MEMS arrays. The Medical Physics group of the University of Oldenburg and...


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...

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