Method and apparatus for determining a target amplification curve for a hearing device
To determine target amplification curves in hearing devices, audiometric mismeasurements are to be corrected. To this end, it is proposed first to measure a bone conduction hearing threshold of a patient. Furthermore a database having typical sound conduction components for a number of typical hearing impairments is provided. One of these sound conduction components is selected in order to smooth the measured bone conduction hearing threshold, with a smoothed bone conduction hearing threshold resulting. One or a number of target amplification curves is formed from the smoothed bone conduction hearing threshold, if necessary with further hearing thresholds. Error corrections can be reliably carried out with the aid of the database.
1. A method for determining a target amplification curve for a hearing device to be worn by a patient, comprising:
measuring a bone conduction hearing threshold of the patient by a measurement unit;
providing a database having a plurality of typical sound conduction components for a plurality of typical hearing impairments by a storage unit;
selecting a sound conduction component from the database by a computing unit;
smoothing the measured bone conduction hearing threshold based on the selected sound conduction component by the computing unit; and
determining the target amplification curve as a function of the smoothed bone conduction hearing threshold by the computing unit.
2. The method as claimed in claim 1 , wherein the selected sound conduction component comprises a typical bone conduction hearing threshold.
3. The method as claimed in claim 1 , wherein the selected sound conduction component correlates with the measured bone conduction hearing threshold at least in a predetermined spectrum segment.
4. The method as claimed in claim 1 , wherein an air conduction hearing threshold is measured together with the bone conduction hearing threshold.
5. The method as claimed in claim 4 , wherein the selected sound conduction component comprises a pair of typical bone conduction hearing threshold and air conduction hearing threshold.
6. The method as claimed in claim 5 , wherein the selected pair of air conduction hearing threshold and bone conduction hearing threshold correlates with the measured pair of air conduction hearing threshold and bone conduction hearing threshold at least in a predetermined spectral segment.
7. The method as claimed in claim 5 , wherein a distance pattern between the selected pair of typical bone conduction hearing threshold and air conduction hearing threshold correlates with a distance pattern between the measured pair of bone conduction hearing threshold and air conduction hearing threshold at least in a predetermined spectral segment.
8. The method as claimed in claim 1 , wherein the target amplification curve is determined for a volume category.
9. The method as claimed in claim 1 , wherein a plurality of target amplification curves are determined for a plurality of different volume categories.
10. A device for determining a target amplification curve for a hearing device to be worn by a patient, comprising:
a measurement unit that measures a bone conduction hearing threshold of the patient;
a storage unit that stores a database comprising a plurality of typical sound conduction components for a plurality of typical hearing impairments; and
a computing unit that:
automatically selects a sound conduction component from the database,
smoothes the measured bone conduction hearing threshold based on the selected sound conduction component, and
determines the target amplification curve as a function of the smoothed bone conduction hearing threshold.
11. The device as claimed in claim 10 , wherein the selected sound conduction component comprises a typical bone conduction hearing threshold.
12. The device as claimed in claim 10 , wherein the selected sound conduction component correlates with the measured bone conduction hearing threshold at least in a predetermined spectrum segment.
13. The device as claimed in claim 10 , wherein an air conduction hearing threshold is measured together with the bone conduction hearing threshold.
14. The device as claimed in claim 13 , wherein the selected sound conduction component comprises a pair of typical bone conduction hearing threshold and air conduction hearing threshold.
15. The device as claimed in claim 14 , wherein the selected pair of air conduction hearing threshold and bone conduction hearing threshold correlates with the measured pair of air conduction hearing threshold and bone conduction hearing threshold at least in a predetermined spectral segment.
16. The device as claimed in claim 14 , wherein a distance pattern between the selected pair of typical bone conduction hearing threshold and air conduction hearing threshold correlates with a distance pattern between the measured pair of bone conduction hearing threshold and air conduction hearing threshold at least in a predetermined spectral segment.
17. The device as claimed in claim 10 , wherein the target amplification curve is determined for a volume category.
18. The device as claimed in claim 10 , wherein a plurality of target amplification curves are determined for a plurality of different volume categories.