Hearing Systems

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.

Presentation of Hearing Systems

The Audio-Visual-Immersion-Lab

AVIL

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.

Listening booths

Listening booths

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

Electrophysiology lab

Electrophysiology lab

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

Audiological clinic

Audiological clinic

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

IEC Listening Room

IEC Listening Room

5) A room that simulates the acoustical properties of an average living room (following the IEC 268-13 standard). This room is used in experiments that need a larger, more flexible space.

Two anechoic rooms

Two anechoic rooms

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.

A spherical microphone

A spherical microphone

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.

An Eigenmike spherical microphone for 3D sound capture

An Eigenmike spherical microphone for 3D sound capture

8) An Eigenmike spherical microphone array enables the capture of realistic sound scenarios  which can be used to better evaluate hearing aid algorithms.

Head and Torso Simulator

Head and Torso Simulator

9) 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.

EEG facilities

EEG facilities

10) 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.

An otoacoustic emission recording system

An otoacoustic emission recording system

11) 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

Eyetrack pupillometry equipment

Eyetrack pupillometry equipment

12) Eyetrack pupillometry equipment in order to measure listening effort

Virtual Reality

Virtual Reality

13) The head-mounted virtual reality system is integrated in the AVIL and is used to simulate realistic and potentially interactive listening scenarios in audio-visual listening experiments.

Motion Capture

Motion Capture

14) A motion capture system, used to track the listeners behavior during listening experiments in the AVIL.