Evaluation subjective d’une méthode de traitement du son pour aides auditives sur la perception de la distance sonore

Other: Digital signal processing algorithms

Subjects fulfilling all of the following inclusion criteria are eligible for the study:

- Willing and able to give written informed consent as documented by signature,

- French-native adult speakers,

- (Preferably) younger than 60 y.o.

For all normal-hearing participants:

- Hearing thresholds lower or equal to 20 dB on both ears, as ensured by a pure-tone
audiometry (125 Hz to 8 kHz) conducted at the beginning of the session.

For all hearing-impaired patients:

- Patients of Mr. Philippe Estoppey, private audiologist settled in Lausanne,

- User of bilateral BTE Phonak hearing aids, commercialized after July 2012, with
fittings that did not change over the last three months,

- Presenting a severe-to-profound sensorineural hearing loss,

- Presenting a symmetrical hearing loss (no bilateral hearing threshold that differ by
more than 20 dB at any audiometric frequency (125 Hz - 4 kHz)).

For HI patients experienced with remote microphone systems:

- Past or present users of FM and/or Roger devices for more than six months.

For other HI patients:

- No past or present experience with FM and/or Roger devices for more than one month.

The presence of any one of the following exclusion criteria will lead to exclusion of the
participant:

- Collaborator of the laboratory (LTS2) or student attending the courses of audio and
acoustics given by the laboratory staff (EE-348 Electroacoustics, EE-548 Audio
Engineering),

- History of chronic or terminal illness, psychiatric disturbance, senile dementia, or
cognitive impairment,

- History of strong tinnitus and/or hyperacusis,

- Strong visual impairment after correction with glasses or not,

- History of epilepsy or other reactions associated with the proximity to a screen,

- Motor disability that would disturb their presence at EPFL.