Acoustic feedback event monitoring system for hearing assistance devices
The present disclosure relates to tracking of acoustic feedback events of a hearing assistance device, such as a hearing aid. Information about the acoustic feedback events is stored for analysis. Such information is useful for programming acoustic feedback cancellers and other parameters of a hearing assistance device.
1. A method, comprising:
monitoring performance of a hearing assistance device having an acoustic feedback canceller, including tracking information using a processor of the hearing assistance device about acoustic feedback events over an interval of use of the hearing assistance device in different acoustic environments experienced by a wearer of the hearing assistance device, wherein the tracking is activated upon occurrence of a programmable event and wherein the processor is configured to measure a magnitude of severity of a feedback event of the acoustic feedback events and to reduce feedback on a band-by-band basis of a plurality of subbands using the measured magnitude and an acoustic feedback estimate; and
storing the tracked information remotely from the hearing assistance device, including storing an indication of the magnitude of severity of the feedback event of the acoustic feedback events for one or more subbands of the plurality subbands, and storing a probability of feedback for the one or more subbands.
2. The method of claim 1 , wherein the processor is configured to reduce feedback using the measured magnitude and using subtraction of the acoustic feedback estimate.
3. The method of claim 1 , wherein storing the information remotely includes storing the information in digital storage accessible over the INTERNET or other network.
4. The method of claim 1 , wherein storing the information remotely includes storing the information in a memory of a personal computer.
5. The method of claim 1 , wherein storing the information remotely includes storing the information in a memory of a portable digital storage device.
6. The method of claim 1 , further comprising transferring the tracked information from the hearing assistance device to a remote device before storing the tracked information at the remote device.
7. The method of claim 6 , wherein transferring the tracked information to a remote device includes using the INTERNET.
8. The method of claim 6 , wherein transferring the tracked information to remote device includes using a wireless network.
9. The method of claim 8 , wherein transferring the tracked information to a remote device includes using radio frequency transmission.
10. The method of claim 8 , wherein transferring the tracked information to a remote device includes using magnetic coupling transmission.
11. An apparatus for storing information relating to acoustic feedback events of a hearing assistance device, comprising:
a digital signal processor configured to monitor performance of a hearing assistance device having an acoustic feedback canceller, including tracking information from a processor of the hearing assistance device about acoustic feedback events over an interval of use of the hearing assistance device in different acoustic environments experienced by a wearer of the hearing assistance device, wherein the tracking is activated upon occurrence of a programmable event and wherein the processor is configured to measure a magnitude of severity of a feedback event of the acoustic feedback events and to reduce feedback on a band-by-band basis of a plurality of subbands using the measured magnitude and an acoustic feedback estimate; and
a memory configured to store the tracked information remotely from the hearing assistance device, including storing an indication of the magnitude of severity of the feedback event of the acoustic feedback events for one or more subbands of the plurality subbands, and storing a probability of feedback for the one or more subbands,
wherein the information is accessible for analysis to determine aspects of the acoustic feedback experienced by the hearing assistance device over the interval of use.
12. The apparatus of claim 11 , further comprising wireless electronics adapted to perform wireless communication of the information.
13. The apparatus of claim 12 , wherein the wireless electronics are configured to perform radio frequency communication.
14. The apparatus of claim 12 , wherein the wireless electronics are configured to perform magnetic coupling communication.
15. The apparatus of claim 11 , wherein the digital signal processor is adapted to store the information including a total number of occurrences of a feedback event.
16. The apparatus of claim 11 , wherein the digital signal processor is adapted to store the information including statistical information about acoustic feedback events.
17. The apparatus of claim 11 , wherein the digital signal processor is adapted to store the information including a number of feedback events per unit time.
18. The apparatus of claim 11 , wherein the apparatus includes a cellular telephone.
19. The apparatus of claim 11 , wherein the apparatus includes a portable digital storage device.
20. The apparatus of claim 11 , wherein the processor is configured to reduce feedback using the measured magnitude and using subtraction of the acoustic feedback estimate.