Hillert: Implementation and Evaluation of Models for the Simulation of Cochlear Hearing Loss
2022-08-26 11:00 - 12:00 (Europe/Berlin) | IHTA Seminarraum (60 Persons) and Zoom-Meeting (Hybrid), Kopernikusstr. 5, Aachen, 52074, Deutschland
Sensorineural hearing loss is a common problem and causes a decreasing quality of life for the people affected. For several reasons, the realistic simulation of these impairments may be considered desirable. These include raising awareness for the problem in the general public, extending the capabilities of hearing models used to predict psychoacoustic parameters, and designing listening experiments in which the hearing abilities of normal hearing participants are deliberately impaired. The purpose of this thesis was gathering and evaluating existing implementations of hearing loss simulators. The code of the simulators was extended to improve performance and achieve better comparability by implementing a common set of basic features, where necessary. These features include the possibility to input a predefined audiometric curve, which is considered by the model during the signal processing accordingly. Real-time capability was not defined as a necessary feature, as the context comprises listening experiments using preprocessed stimuli. The metrological analyses focused on the characteristics of filters and compressive behavior. As a first step of the perceptive evaluation, a listening experiment with 22 participants was conducted to determine how accurately the hearing thresholds of normal hearing participants could be altered towards the hearing levels of predefined audiograms representing mild and moderate age-related hearing loss.
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Zoom-Meeting-ID: 974 5654 1819
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