Hearing Systems

The research in Hearing Systems focuses on auditory and speech processing and perception, functional models of hearing, audiology, physiological acoustics, objective measures of hearing and hearing instrument signal processing.

1) The Audio-Visual-Immersion-Lab (AVIL) is a virtual environment for hearing research and enables a realistic reproduction of the acoustics of real rooms, and the playback of spatial audio recordings.

2) A psycoacoustics lab and a communication lab with six acoustically shielded listening boots in total used for audiometry, psychoacoustic and speech intelligibility experiments.

3) One electrophysiology lab for measurement of electroencephalography (EEG) and otoacoustic emissions. Photo: Joachim Rode.

4) An audiological clinic with equipment for audiometry, ear analysis, otoscopic inspection, and hearing aid measurements. Photo: Joachim Rode

5) A listening room according to the IEC 268-13 standard for e.g. loudspeaker comparison in order to simulate an everyday living room listening environment. Photo: Eva Helena Andersen.

6) Two anechoic rooms: a large and a small one. These rooms are, e.g., used for recording of speech and music stimuli which are later used in psychoacoustic tests. Photo: Torben Nielsen.

7) The spherical microphone array consists of 52 individual microphones. From the slightly different positions, it is possible to recreate the sound field that was at the position of the sphere.

8) Head and Torso Simulator (HATS) is a mannequin with built-in ear and mouth simulators that provides a realistic reproduction of the acoustic properties of an average adult human head and torso.

9) A 64-channel EEG recording system and a soundproof and electronically shielded listening booth. This system is used for objective measures such as auditory evoked potentials. Photo: Joachim Rode.

10) An otoacoustic emission (OAE) recording system. This system is flexible and allows us to investigate OAE recording techniques with advanced stimuli. Photo: Alexandre Chabot-Leclerc

11) Eyetrack pupillometry equipment in order to measure listening effort

By the master hearing-aid platform, a fully flexible system, we can systematically test effects of state-of-the-art hearing-aid signal processing, as well as develop innovative compensation strategies.