The Beltone Anechoic chamber, one of the largest in Ontario, enables researches to
study sound propagation in simulated 3D environment.
With a computer controlled 64 speaker array, the sound
processing capabilities of instruments and people is
being measured in a simulated real-world environment. It
allows researchers to study binaural hearing and the
processing of signals in noise.
The Assistive Devices
Laboratory is equipped with the latest in assistive
technologies for persons who are deaf, deafened,
and hard of hearing. This lab is used in Adult Aural
Rehabilitation research, student training, and for
assistive device consultation through the H.A. Leeper
Speech & Hearing Clinic. Supported by Bernafon Canada.
The Child Amplification
Laboratory undertakes research relating to the process
of selecting and fitting hearing aids and assistive
listening devices, with a particular focus on children.
Their work on early detection and habilitation of
hearing impairments has been instrumental in the
development of Infant Hearing Programs.
The Child Hearing Research Laboratory includes a full sized sound booth and equipment for
stimulus and experimental control. Using both custom
developed and commercially available software they are
able to test the psychoacoustic abilities of preschool-
and early school-aged children as well as adults.
The Digital Signal Processing (DSP)
Laboratory undertakes research projects related to
speech and audio processing with applications in hearing
aids, assistive listening devices, and augmentative
communication devices. Current research activities
include objective measurements of speech and audio
quality, development and evaluation of speech
enhancement algorithms for digital hearing aids, and
evaluating the interaction between speech coder quality
and hearing loss, especially in Voice over Internet
Protocol (VoIP) communications.
Not only a
child’s ability to hear sounds, but also their ability
to understand them, has been a focus of research in the
GN Otometrics Child Hearing Research Lab and the Siemens
Clinical Research Lab.
behavioral and objective techniques, the work has the
potential to change diagnostic audiology and contribute
significantly to the understanding of auditory
development and function.
The Hearing Science Laboratory
research focuses on temporal
processing in older normal hearing adults and
contributes to changes in the assessment of hearing in
adults and in the management of their hearing health
care. Through better understanding of the effects of the
aging ear on hearing, hearing health care to older
listeners is being improved.
A major focus of work in the Robert Johnston Aural
Rehabilitation Laboratory is examining the facilitators and
barriers to assistive device use. Ways to prevent and
alleviate the debilitating effects of hearing impairments on
social functioning are studied, as well as how to assist
those persons with hearing impairments by using a wide range
of listening devices.
Communication Laboratory supports research to improve our
knowledge of how humans learn, understand and use spoken
The Electrophysiology Laboratory contains
a new, RF shielded sound booth and spacious work and
equipment areas. These facilities are used in the
simultaneous stimulation of acoustic responses from the
cochlea (otoacoustic emissions) and electrical responses
from the auditory nervous system (auditory evoked
potentials). This research enables us to better describe a
variety of auditory disorders including cochlear hearing
impairment, auditory neuropathy, and auditory processing