Dr. Hendrik Husstedt, Lübeck
“Definition and verification of hearing aid programs”
In order to apply adequate signal processing in different listening situations, it has been customary for quite some time to equip hearing aids with different hearing programs. Nevertheless, neither a standardised definition nor a measurement procedure have been available to verify the availability and the number of hearing programs. Therefore, the DKE/AK 821.6.2 research group, “Characterisation of hearing aid features”, of the DKE (VDE, Association of Electrical, Electronic and Information Technologies) is dealing with this topic.
In the first part of this contribution, the results of the DKE/AK 821.6.2 research group will be presented, including a definition of a hearing program. I shall then go on to show how the different strategies in hearing programs can be classified into three categories, and discuss how each category may be verified based on technical measurements.
In the second part, measurement results will be shared demonstrating to which degree of precision today’s hearing aids detect different listening situations. To this end, characteristic signals will first be defined for each listening situation. In a second step, using measurements and data from data logging, I shall depict whether or not the different listing situations are correctly detected.