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.

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.

An otoacoustic emission (OAE) recording system. This system is flexible and allows us to investigate OAE recording techniques with advanced stimuli.

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.

The spherical microphone array consists of 52 individual microphones. Each microphone measures the acoustic environment at a slightly different position, and make it possible to recreate a specific sound field.

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

The Artificial ear model simulates what happens in the human ear.
It consists of couplers that have been designed for measurements in the audiometric and related fields.

An audiological clinic with equipment for audiometry, ear analysis, otoscopic inspection and hearing aid measurements.

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

One bigger acoustically and electrically shielded listening booth used for measurement of electroencephalography (EEG) and otoacoustic emissions. 

Acoustically and electrically shielded listening booths used for audiometry, psychoacoustic and speech intelligibility experiments where sound is typically presented over headphones.

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