Method for operating a hearing device as well as a hearing device

A method for operating a hearing device (1) in a way that lets a hearing device user (10) acclimatize to said hearing device (1), said hearing device (1) comprising:

• a signal processing unit (9),
• a user control (4) by which at least one audio processing parameter (APP) of said signal processing unit (9) is adjustable by said hearing device user (10), and
• a non-volatile memory (7),
• said method comprising the steps of:
• a) writing a value indicative of a target power-on value (tPOV) for said audio processing parameter (APP) to said non-volatile memory (7),
• b) waiting until said hearing device user (10) switches on said hearing device (1),
• c) setting said audio processing parameter (APP) to a power-on value (POV), said power-on value (POV) being either stored in said non-volatile memory (7) or being calculated from values stored in said non-volatile memory (7),
• d) allowing said hearing device user (10) to continuously perform one or more adjustment actions by said user control (4) for adjusting said audio processing parameter (APP) to said hearing device user's preferences in varying listening situations,
• e) executing an acclimatization algorithm simultaneously with step d), after step d) and/or before step c), said acclimatization algorithm being designed to approximate said power-on value (POV) to said target power-on value (tPOV) after at least a week, said acclimatization algorithm determining a replacement power-on value (rPOV) for said power-on value (POV) taking into account which setting or settings for said audio processing parameter (APP) has or have been set by said hearing device user (10) and how long said setting or settings have been active, and
• f) repeating steps b) to e) until an acclimatization phase termination condition is fulfilled,
• wherein said acclimatization algorithm periodically calculates, while said hearing device (1) is on, an intermediate value (X) based on an update function:
• XN=fU(XN-1,APPN)
• wherein
• XN is a result of an N-th calculation of said update function since said hearing device (1) was last switched on, wherein X0 is defined to be a first audio processing parameter APP0,
• APPN is a current setting for said audio processing parameter (APP), wherein APPN can be influenced by said hearing device user (10) for N>0, while APP0 is defined to be said power-on value (POV) stored in said non-volatile memory (7),
• wherein a last intermediate value (X[Max(N)])—being calculated before said hearing device (1) is switched off—is said replacement power-on value (rPOV) that is stored as a new power-on value (POV).

A method for operating a hearing device (1) in a way that lets a hearing device user (10) acclimatize to said hearing device (1), said hearing device (1) comprising:

• a signal processing unit (9),
• a user control (4) by which at least one audio processing parameter (APP) of said signal processing unit (9) is adjustable by said hearing device user (10), and
• a non-volatile memory (7),
• said method comprising the steps of:
• a) writing a value indicative of a target power-on value (tPOV) for said audio processing parameter (APP) to said non-volatile memory (7),
• b) waiting until said hearing device user (10) switches on said hearing device (1),
• c) setting said audio processing parameter (APP) to a power-on value (POV), said power-on value (POV) being either stored in said non-volatile memory (7) or being calculated from values stored in said non-volatile memory (7),
• d) allowing said hearing device user (10) to continuously perform one or more adjustment actions by said user control (4) for adjusting said audio processing parameter (APP) to said hearing device user's preferences in varying listening situations,
• e) executing an acclimatization algorithm simultaneously with step d), after step d) and/or before step c), said acclimatization algorithm being designed to approximate said power-on value (POV) to said target power-on value (tPOV) after at least a week, said acclimatization algorithm determining a replacement power-on value (rPOV) for said power-on value (POV) taking into account which setting or settings for said audio processing parameter (APP) has or have been set by said hearing device user (10) and how long said setting or settings have been active, and
• f) repeating steps b) to e) until an acclimatization phase termination condition is fulfilled,
• wherein said acclimatization algorithm periodically calculates, while said hearing device (1) is on, an intermediate acclimatization value (Y) based on an acclimatization update function
• YN=YN-1+step
• as well as an intermediate learning value (Z) based on a learning update function
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• YN is a result of an N-th calculation of said acclimatization update function since said hearing device (1) was last switched on, wherein Y0 is defined to be APP0,
• ZN is a result of an N-th calculation of said learning update function since said hearing device (1) was last switched on, wherein Z0 is defined to be APP0,
• APPN is a current setting for said audio processing parameter (APP), wherein APPN can be influenced by said hearing device user (10) for N>0, while APP0 is defined to be said power-on value (POV) stored in said non-volatile memory (7),
• wherein said replacement power-on value (rPOV) is calculated by a weighted average from a last intermediate acclimatization value (Y[max(N)]) and a last intermediate learning value (Z[max(N)]) being calculated before said hearing device (1) is switched off, according to the formula
• rPOV=Y[max(N)]*weight+Z[max(N)]*(1−weight)
• and is stored as said power-on value (POV).

A method for operating a hearing device (1) in a way that lets a hearing device user (10) acclimatize to said hearing device (1), said hearing device (1) comprising:

• a signal processing unit (9),
• a user control (4) by which at least one audio processing parameter (APP) of said signal processing unit (9) is adjustable by said hearing device user (10), and
• a non-volatile memory (7),
• said method comprising the steps of:
• a) writing a value indicative of a target power-on value (tPOV) for said audio processing parameter (APP) to said non-volatile memory (7),
• b) waiting until said hearing device user (10) switches on said hearing device (1),
• c) setting said audio processing parameter (APP) to a power-on value (POV), said power-on value (POV) being either stored in said non-volatile memory (7) or being calculated from values stored in said non-volatile memory (7),
• d) allowing said hearing device user (10) to continuously perform one or more adjustment actions by said user control (4) for adjusting said audio processing parameter (APP) to said hearing device user's preferences in varying listening situations,
• e) executing an acclimatization algorithm simultaneously with step d), after step d) and/or before step c), said acclimatization algorithm being designed to approximate said power-on value (POV) to said target power-on value (tPOV) after at least a week, said acclimatization algorithm determining a replacement power-on value (rPOV) for said power-on value (POV) taking into account which setting or settings for said audio processing parameter (APP) has or have been set by said hearing device user (10) and how long said setting or settings have been active, and
• f) repeating steps b) to e) until an acclimatization phase termination condition is fulfilled,
• wherein said acclimatization algorithm is a function
• rPOV=f(POV,APP1,APP2,APP3 . . . )
• wherein POV is said power-on value, rPOV is said replacement power-on value for said power-on value and APPN is a sample of said audio processing parameter (APP) at a particular time (tN).

A method for operating a hearing device (1) in a way that lets a hearing device user (10) acclimatize to said hearing device (1), said hearing device (1) comprising:

• a signal processing unit (9),
• a user control (4) by which at least one audio processing parameter (APP) of said signal processing unit (9) is adjustable by said hearing device user (10), and
• a non-volatile memory (7),
• said method comprising the steps of:
• a) writing a value indicative of a target power-on value (tPOV) for said audio processing parameter (APP) to said non-volatile memory (7),
• b) waiting until said hearing device user (10) switches on said hearing device (1),
• c) setting said audio processing parameter (APP) to a power-on value (POV), said power-on value (POV) being either stored in said non-volatile memory (7) or being calculated from values stored in said non-volatile memory (7),
• d) allowing said hearing device user (10) to continuously perform one or more adjustment actions by said user control (4) for adjusting said audio processing parameter (APP) to said hearing device user's preferences in varying listening situations,
• e) executing an acclimatization algorithm simultaneously with step d), after step d) and/or before step c), said acclimatization algorithm being designed to approximate said power-on value (POV) to said target power-on value (tPOV) after at least a week, said acclimatization algorithm determining a replacement power-on value (rPOV) for said power-on value (POV) taking into account which setting or settings for said audio processing parameter (APP) has or have been set by said hearing device user (10) and how long said setting or settings have been active, and
• f) repeating steps b) to e) until an acclimatization phase termination condition is fulfilled,
• wherein said acclimatization phase termination condition is one of the following:
• said power-on value (POV) being equal or above a threshold value (T),
• said intermediate value (X) being equal or above a threshold value (T),
• wherein said threshold value (T) is obtained by one of the following steps:
• being derived from said value indicative of a target power-on value (tPOV),
• being calculated by the formula
• T=tPOV−dist
• being calculated by the formula
• T=tPOV−p*(tPOV−iPOV)
• wherein T is said threshold value (T), dist defines a vicinity of said target power-on value (tPOV), tPOV is said target power-on value (tPOV), iPOV is an initial power-on value (iPOV) and p is equal to 0.1.

A hearing device (1) comprising:

• an input transducer (2) for picking up environment sounds,
• a signal processing unit (9) for adapting sounds to a hearing loss of a hearing device user (10),
• an output transducer (3) for delivering adapted sounds to an ear of said hearing device user (10),
• a fitting interface (8) for adjusting said hearing device (1) to the needs of said hearing device user (10),
• a first user control (5) for allowing said hearing device user (10) to switch on and off said hearing device (1),
• a second user control (4) by which at least one audio processing parameter (APP) of said signal processing unit (9) is adjustable by said hearing device user (10),
• a non-volatile memory (7), and
• a controller (6),
• wherein said fitting interface (8) is adapted to write an initial power-on value (iPOV) and a value indicative of a target power-on value (tPOV) for said audio processing parameter (APP) to said non-volatile memory (7), and wherein said controller (6) is adapted
• to set said audio processing parameter (APP) to a power-on value (POV) when said hearing device (1) has been powered on, whereon said power-on value (POV) is stored in said non-volatile memory (7) or is calculated from values stored in said non-volatile memory (7),
• to adjust said audio processing parameters (APP) to said hearing device user's preferences in varying listening situations according to said hearing device user (10) performing one or more adjustment actions by said user control (4),
• to execute an acclimatization algorithm simultaneously with or after said adjustment actions at said user control (4) and/or before setting said audio processing parameter (APP) to a power-on value (POV), said acclimatization algorithm being designed to approximate said power-on value (POV) to said target power-on value (tPOV) after at least a week, said acclimatization algorithm determining a replacement power-on value (rPOV) for said power-on value (POV) taking into account which setting or settings for said audio processing parameter (APP) has or have been set by said second user control (4) being actuated and how long said setting or settings have been active,
• until said power-on value (POV) is sufficiently close to said target power-on value (tPOV), wherein said acclimatization algorithm is a biased user preference learning algorithm, said biased user preference learning algorithm being derived from an unbiased user preference learning algorithm which is designed to determine a setting statistically preferred by said hearing device user (10) for said audio processing parameter (APP), said biased user preference learning algorithm being responsive to adjustment actions by said second user control (4) in a way that adjustments in a first adjustment direction are taken into account stronger than adjustments in an opposite second adjustment direction, wherein said first adjustment direction is a direction towards said target power-on value (tPOV).