Hearing aid fitting device, hearing aid, and hearing aid fitting method

A hearing aid, comprising:

• a receiver that receives audio;
• an adjustment data determination component that is connected to a database in which previously acquired adjustment data obtained by the fitting of a hearing aid is stored after being hierarchically classified according to the similarity in the amount of adjustment, and that determines adjustment data for a hearing aid by selecting a classification from among a plurality of classifications in each hierarchical layer;
• a hearing aid processor that performs hearing aid processing on the received audio, on the basis of the adjustment data thus determined;
• and
• an output component that outputs the audio that has undergone the hearing aid processing.

A hearing aid, comprising:

• a receiver that receives audio;
• an adjustment data determination component that is connected to a database in which previously acquired adjustment data obtained by the fitting of a hearing aid is stored in a rearrangeable fashion on the basis of a specific priority order, and that determines adjustment data for the hearing aid by selecting one set of previously acquired adjustment data from among a plurality of sets of the rearranged previously acquired adjustment data in each hierarchical layer;
• a hearing aid processor that performs hearing aid processing on the received audio, on the basis of the adjustment data thus determined;
• and
• an output component that outputs the audio that has undergone the hearing aid processing.