Hearing device and method of using same
Various embodiments of a hearing device and a method of using such device are disclosed. The hearing device includes a housing having an inner surface and an outer surface, electronic components disposed within the housing, and a port disposed in the housing and extending between a first end at the outer surface of the housing and a second end disposed within the housing, where the port is acoustically connected to at least one of a speaker or a microphone of the electronic components. The hearing components also include a controller that is electrically connected to a sensor and that is adapted to detect a change in capacitance of the sensor, where the change in capacitance is associated with debris at least partially occluding the port.
1. A hearing device comprising:
a housing comprising an inner surface and an outer surface;
electronic components disposed within the housing and comprising a speaker, a microphone, and a controller electrically connected to the speaker and the microphone;
a port disposed in the housing extending between a first end at the outer surface of the housing and a second end disposed within the housing, wherein the port is acoustically connected to at least one of the speaker or the microphone; and
a sensor comprising a first electrode and a second electrode each electrically connected to the controller, wherein the first electrode is disposed at least partially within the first end of the port, and further wherein the second electrode is disposed on the outer surface of the housing and spaced apart from the first electrode;
wherein the controller is adapted to detect a change in capacitance of the sensor, wherein the change in capacitance is associated with debris at least partially occluding the port.
2. The hearing device of claim 1 , wherein the port comprises an acoustic port, wherein the speaker is acoustically connected to the acoustic port.
3. The hearing device of claim 1 , wherein the port comprises a microphone port, wherein the microphone is acoustically connected to the microphone port.
4. The hearing device of claim 1 , wherein at least one of the first electrode or the second electrode comprises a ring electrode.
5. The hearing device of claim 1 , wherein the second electrode encircles the first electrode and the first end of the port.
6. The hearing device of claim 1 , wherein the first electrode is disposed entirely within the port.
7. The hearing device of claim 1 , wherein the controller is further adapted to notify a user or technician that the port is at least partially occluded if a change of capacitance is detected.
8. A hearing device comprising:
a housing comprising a microphone port disposed through the housing;
hearing components disposed within the housing and comprising a microphone and a controller electrically connected to the microphone, wherein the microphone is acoustically connected to the microphone port and comprises a diaphragm;
wherein the controller is adapted to:
direct a first electrical pulse to the microphone diaphragm;
determine a reference decay rate of a mechanical resonance signal of the microphone diaphragm in response to the first electrical pulse when the microphone port is unobstructed;
direct a second electrical pulse to the microphone diaphragm;
determine a second decay rate of a second mechanical resonance signal of the microphone diaphragm in response to the second electrical pulse;
compare the reference decay rate to the second decay rate; and
determine whether the microphone port is at least partially occluded by debris if the second decay rate is greater than the reference decay rate.
9. The hearing device of claim 8 , wherein the microphone comprises a microelectromechanical microphone.
10. The hearing device of claim 8 , wherein the controller is further adapted to notify a user or technician that the microphone port is at least partially occluded if the second decay rate is greater than the reference decay rate.
11. The hearing device of claim 8 , wherein the hearing components further comprise a speaker acoustically connected to an acoustic port that is disposed through the housing.
12. The hearing device of claim 11 , wherein the controller is further adapted to:
direct an acoustic signal to the speaker such that the speaker converts the acoustic signal to a reference sound wave that is transmitted into an ear canal through the acoustic port;
detect a second sound wave utilizing the second diaphragm, wherein the second sound wave comprises at least a portion of the reference sound wave that is reflected by an eardrum within the ear canal and directed into the acoustic port;
compare a sound pressure level of the reference sound wave to a sound pressure level of the second sound wave; and
determine whether the acoustic port is at least partially occluded based upon the comparison of the sound pressure level of the reference sound wave to the sound pressure level of the second sound wave.
13. The hearing device of claim 12 , wherein the controller is further adapted to notify a user or technician that the acoustic port is at least partially occluded based upon the comparison of the sound pressure level of the reference sound wave to the sound pressure level of the second sound wave.
14. The hearing device of claim 8 , wherein the second electrical pulse comprises a bias voltage pulse.
15. A method comprising:
detecting a sound pressure level of acoustic energy emitted by a hearing device;
comparing the detected sound pressure level to a reference sound pressure level of acoustic energy emitted by the hearing device;
if the detected sound pressure level is less than the reference sound pressure level, then comparing a power level of a power source of the hearing device to an operating threshold;
if the power level is above the operating threshold, then determining whether at least one of an acoustic port or a microphone port is at least partially occluded by debris; and
notifying a user or a technician if at least one of the acoustic port or the microphone port is at least partially occluded.
16. The method of claim 15 , further comprising removing the debris from at least one of the acoustic port or microphone port.
17. The method of claim 15 , wherein determining whether at least one of the acoustic port or microphone port is at least partially occluded by debris comprises:
measuring a reference capacitance between a first electrode disposed at least partially within the acoustic port or the microphone port and a second electrode disposed on a housing of the hearing device when each of the acoustic port and microphone port is unobstructed;
measuring a second capacitance between the first electrode and the second electrode; and
determining that the acoustic port or microphone port is at least partially occluded if the second capacitance is greater than the reference capacitance.
18. The method of claim 15 , wherein determining whether at least one of the acoustic port or microphone port is at least partially occluded by debris comprises:
directing a first electrical pulse to a diaphragm of a microphone disposed in a housing of the hearing device, wherein the microphone is acoustically connected to the microphone port;
determining a reference decay rate of a mechanical resonance signal of the microphone diaphragm in response to the first electrical pulse when the microphone port is unobstructed;
directing a second electrical pulse to the microphone diaphragm;
determining a second decay rate of a second mechanical resonance signal of the microphone diaphragm in response to the second electrical pulse;
comparing the reference decay rate to the second decay rate; and
determining that the microphone port is at least partially occluded by debris if the second decay rate is greater than the reference decay rate.
19. The method of claim 18 , further comprising determining that the acoustic port is at least partially occluded by debris if the second decay rate is substantially equal to the reference decay rate.
20. The method of claim 15 , wherein determining whether at least one of the acoustic port or microphone port is at least partially occluded by debris comprises:
directing an acoustic signal to a first diaphragm of a speaker disposed within a housing of the hearing device and acoustically connected to the acoustic port such that the first diaphragm converts the acoustic signal to a reference sound wave that is transmitted into an ear canal through the acoustic port;
detecting a second sound wave utilizing a second diaphragm of the speaker, wherein the second sound wave comprises at least a portion of the reference sound wave that is reflected by an eardrum within the ear canal and directed into the acoustic port;
comparing a sound pressure level of the reference sound wave to a sound pressure level of the second sound wave; and
determining whether the acoustic port is at least partially occluded based upon the comparison of the sound pressure level of the reference sound wave to the sound pressure level of the second sound wave.