Hearing Perception and Sound Quality

What are the characteristics of a good sound? Why are some noises annoying, while others indicate that a product is functioning reliably? Can a vacuum cleaner sound powerful even though it is quiet? Psychoacoustics sets out to provide answers to these questions. For this purpose, research is conducted into the physical factors that influence the subjective perceived sound quality. In order to describe and predict the quality of sounds, the Fraunhofer research scientists work in close cooperation with the scientists conducting fundamental research at the Carl von Ossietzsky University of Oldenburg to develop computer models that simulate the hearing perception of normal and impaired hearing. The scientists develop application-specific evaluation measurements for sound parameters such as loudness, speech intelligibility, roughness or annoyance.

Range of Services

  • Computer-based, psychoacoustic evaluation of sound quality and speech intelligibility
  • Perception models for different sound parameters
  • Studies for subjective evaluation of speech and sound quality with persons with normal and impaired hearing from all age groups as well as so-called expert hearers

YourSound – Your sound, in every situation

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YourSound is the virtual assistant that allows listeners to set their sound preferences in just a few steps.

The newly developed audio software from Fraunhofer IDMT in Oldenburg enables individual sound settings without having to deal with complex sub-menus or parameters.

»YourSound« enables users of audio devices, such as infotainment systems, to playfully adjust audio to their own acoustic preferences – even without knowledge of levels or frequencies. 

Products and Solutions


Press Information / 7.7.2022

Intuitive sound personalisation in vehicles

Everyone hears differently – this applies inside a vehicle too. That is why Fraunhofer IDMT in Oldenburg has developed a technological concept for fast and individual sound adaptation, which has been integrated into the multimedia system of vehicles from the Mercedes-Benz Group AG.


Your sound, in every situation

Everyone hears differently. »YourSound« of Fraunhofer IDMT in Oldenburg enables users of audio devices to adjust audio to their own acoustic preferences – as easy as never before!


Press information / 22.8.2019

Everyone hears differently well!

Under the name »earis®«, Humantechnik GmbH is currently presenting a TV audio system developed in collaboration with the Fraunhofer IDMT in Oldenburg. Seen here are the under-chin headphones.



Real-time monitoring of speech intelligibility


Insight into our research

Objective quality assessment of product noise