Project: Metrology for a universal ear simulator and the perception of non-audible sound

Excessive noise exposure is a major cause of hearing loss, which costs the EU around 200 billion euros per year and causes severe deterioration in the quality of life of sufferers. New technologies and industrial processes emit infrasound (low frequency) or airborne ultrasound (high frequency). However, no standards currently exist in these frequency ranges and there are growing concerns that these sounds, which lie outside audible limits, may be hazardous to human hearing. This project will help to protect hearing by improving our understanding of how we perceive non-audible sound and establishing effective safety criteria. New ear simulators will also be produced to calibrate equipment such as headphones used in routine medical screening, improving the quality and reliability of measurement results.

Acronym HLT01 Ears (Reference Number: HLT01)
Duration 01/05/2012 - 30/04/2015
Project Topic Metrology
Project Results
(after finalisation)
See Website
Website visit project website
Network EMRP
Call EMRP Call 2011 - Health, SI Broader Scope and New Technologies

Project partner

Number Name Role Country
1 Physikalisch-Technische Bundesanstalt Coordinator Germany
2 Brüel & Kjaer Sound & Vibration Measurement A/S Partner Denmark
3 Dansk Fundamental Metrologi A/S Partner Denmark
4 Laboratoire national de métrologie et d'essais Partner France
5 NPL Management Limited Partner United Kingdom
6 Turkiye Bilimsel ve Teknolojik Arastirma Kurumu Partner Turkey