Abstract: A fitting device for fitting a hearing device. The fitting device comprising a fitting device interface and a fitting device processing unit. The fitting device processing unit is configured to obtain a list of hearing devices; output an initial discovery representation on the fitting device interface based on the list of hearing devices; receive a first control signal from an activated hearing device from the list of hearing devices, the first control signal being indicative of a user activation of the activated hearing device; determine a first discovery representation based on the first control signal; and output the first discovery representation on the fitting device interface.

Abstract: A method of adjusting a signal processing parameter for a first hearing aid and a second hearing aid forming parts of a binaural hearing aid system to be worn by a user is provided. The binaural hearing aid system comprises a user specific model representing a desired asymmetry between a first ear and a second ear of the user. The method includes detecting a request for processing a parameter change at the first hearing aid, adjusting the signal processing parameter in the first hearing aid, and adjusting a processing parameter for the second hearing aid based on the request for processing parameter change and the user specific model.