Method for adjusting a hearing device and a hearing device that is operable according to said method

1. A method for adjusting a hearing device ( 1 ) to the hearing preferences of a user of said hearing device ( 1 ), the hearing device ( 1 ) comprising an input transducer ( 20 ) for providing an electrical signal that corresponds to an acoustical input signal, a processing unit ( 10 ) for processing the electrical signal according to a set of process parameters (G1, . . . , Gn) to provide an intermediate signal, and an output transducer ( 30 ) for providing an output signal to the user of said hearing device ( 1 ), the output signal corresponding to the intermediate signal, said method comprising the steps of:

providing a set of adjustment parameters (A1, . . . , Am), which, at least partly, represents an individual hearing characteristic of the user of said hearing device ( 1 );

adapting the set of process parameters (G1, . . . , Gn) as a function of an adjustment control signal (ACS) and the set of adjustment parameters (A1, . . . , Am); and

adapting the set of process parameters (G1, . . . , Gn) in a plurality of frequency bands,

wherein the set of process parameters (G1, . . . , Gn) is adjusted in a stepwise manner, in particular according to a step counter value (scv), and, wherein an individual process parameter Gi of the set of process parameters (G1, . . . , Gn) is controlled according to the expression:

Gi=G 0 i+scv*Ai, with 1≦ i≦n , and

wherein i is an index, n is the number of process parameters (G1, . . . , Gn), G0i is an individual element of a set of predetermined gain values (G01, . . . , G0n), scv is the step counter value and Ai is an individual adjustment parameter of the set of adjustment parameters (A1, . . . , Am).

2. The method according to claim 1 , comprising the step of forwarding an adjustment command as adjustment control signal (ACS), the adjustment command being a scalar value.

3. The method according to claim 2 , wherein the adjustment command is provided by the user of said hearing device ( 1 ) via a user interface ( 40 ).

4. The method according to claim 1 , wherein the set of process parameters (G1, . . . , Gn) is a set of gains, which controls an amplification or an attenuation of the electrical signal within a plurality of frequency bands.

5. The method according to claim 1 , wherein the set of process parameters (G1, . . . , Gn) is additionally adapted as a function of at least one of:

a) an acoustical coupling of the hearing device ( 1 ) to the user;

b) a hearing asymmetry between the left ear and right ear of the user;

c) an acoustical situation of the user;

d) a feedback threshold.

6. The method according to claim 1 , wherein each of the process parameters (G1, . . . , Gn) is adapted according to a uniquely assigned adjustment parameter (A1, . . . , Am).

7. The method according to claim 1 , wherein the set of process parameters (G1, . . . , Gn) is adjusted by adding a set of increments that is a function of the adjustment control signal (ACS) and the set of adjustment parameters (A1, . . . , Am).

8. The method according to claim 1 , wherein the set of process parameters (G1, . . . , Gn) is additionally adapted as a function of a scaling factor, which in particular is at least one of:

an integer number;

a rational number;

a number that depends on the direction of the adjustment.

9. The method according to claim 1 , wherein the set of process parameters (G1, . . . , Gn) is additionally adapted as a function of at least one of:

an adjustment step size;

an adjustment direction;

a momentary sound situation;

a level of the acoustical input signal.