Automated scanning for hearing aid parameters

A hearing aid system comprising:

• a first hearing aid with
• a first microphone for provision of a first audio signal in response to sound signals received at the first microphone from a sound environment,
• a first hearing loss signal processor that is configured to process the first audio signal in accordance with a signal processing algorithm to generate a first hearing loss compensated audio signal for compensation of a hearing loss of a user of the hearing aid system, wherein the signal processing algorithm F is configured to apply a first set of signal processing parameters,
• a first output transducer for providing a first output signal to a user of the hearing aid system based on the first hearing loss compensated audio signal, and
• a first interface configured for data communication with one or more other device(s);
• a user interface;
• and
• an adjustment processor that is configured for
• calculating a second set of signal processing parameters comprising alternate value(s) for one or more of the signal processing parameters in the first set, and
• controlling the first hearing loss signal processor to process the first audio signal with the signal processing algorithm applying the second set of signal processing parameters for evaluation of the first hearing loss compensated audio signal.