Sound Perception Study of Hearing-impaired People With Hearing Aids

"The experiment consists of evaluating the sound level of n complex stimuli, then equalising them in loudness, in order to measure a loudness curve in function of timbre descriptors.~The stimuli will then be listened to again in pairs. The task is there to compare the stimuli using a VAS to indicate how different the two sounds are."

The experiment consists in identifying the parameters of the sound timbre that most disturb the understanding of complex sound scenes, by asking the participants to identify sounds whose timbre has been modified.

The experiment will be identical to intervention 2. This time, the modification of the stimulus timbres will focus on the most problematic dimensional modifications, i.e. those where the difference between normal-hearing and hearing-impaired listeners is greatest. We will then modify the signal processing parameters of the hearing aid simulator (for example, the size of the averaging window or the gain balance of the filters), to observe their impact on the salience of certain stimuli.