Hearing aid device comprising a sensor member
A hearing aid device is disclosed. The hearing aid device comprises means to improve, augment and/or protect the hearing capability of a user by receiving acoustic signals from the surroundings of the user, generating corresponding audio signals, possibly modifying the audio signals and providing the possibly modified audio signals as audible signals to at least one of the user's ears. The hearing aid device comprises a sensor member for detecting the movement and/or acceleration and/or orientation (or spatial position) of the hearing aid device. The hearing aid device comprises at least two hearing aid microphones and a control unit for determining the position or a deviation from an intended position of the hearing aid device or hearing aid microphones. The hearing aid device is configured to compensate for a possible dislocation of the hearing aid microphones.
1. A hearing aid device for improving, augmenting, modifying and/or protecting the hearing capability of a user when receiving acoustic signals from the surroundings of the user, the hearing aid device comprising
an input unit for generating corresponding audio signals,
a signal processing unit for modifying the audio signals,
an output unit for providing modified audio signals as audible signals to at least one of the user's ears, and
a sensor member for detecting the movement and/or acceleration and/or orientation and/or position of the hearing aid device, wherein
the sensor member comprises an accelerometer capable of determining the acceleration acc in the hearing aid device and comparing a direction of detected acceleration vector acc to a direction of gravity g, and
the sensor member is configured to be powered independently from the signal processing unit, and to be used to control a switch to automatically power up the signal processing unit when a movement is detected.
2. A hearing aid device according to claim 1 , wherein the sensor member is configured to be used to control a switch to automatically power up the signal processing unit in a standby mode where power consumption is minimal when a movement is detected.
3. A hearing aid device according to claim 1 comprising a directional system with an adaptive directional algorithm for providing a combined signal based on signals from at least two hearing aid microphones.
4. A hearing aid device according to claim 1 comprising a feedback estimation unit comprising an adaptive feedback algorithm for estimating a feedback path from the output unit to the input unit.
5. A hearing aid device according to claim 4 , wherein the sensor member is configured to control the signal processing unit to allow estimating said feedback path from the output unit to the input unit.
6. A hearing aid device according to claim 1 , wherein the hearing aid device is configured for detecting if the hearing aid user is moving or turning the head and for improving and/or augmenting received acoustic signals from the surroundings of the hearing aid user by compensating for the head movement if it is detected that the hearing aid user is moving or turning the head.
7. A hearing aid device according to claim 1 , wherein the sensor member is configured to control the signal processing unit to allow determining a microphone direction or angle of inclination of the hearing aid device.
8. A hearing aid device according to claim 1 configured to use the sensor member together with other sensors to detect whether or not the hearing aid device is located at or on one of the ears of a user.
9. A hearing aid device according to claim 1 , wherein control of functionality of the hearing aid device is performed by said sensor member in combination with a number of other sensors including one or more of a time unit for estimating a time range elapsed and a feedback path unit for estimating a feedback path of the hearing aid device.
10. A hearing aid device according to claim 1 configured use the sensor member to detect if the hearing aid device is being moved and to characterize the movement, and wherein the hearing aid device is configured to be automatically turned on in a full power-on mode or in a ‘standby mode’, when the sensor member detects that the hearing aid device is in a ‘movement mode’.
11. A hearing aid device according to claim 10 configured to characterize the movement in one or more of fast/slow, and up/down.
12. A hearing aid device according to claim 10 configured to leave said standby mode and enter a full power on mode, when a tapping detector detects a tapping on the hearing aid device.
13. A hearing aid device according to claim 12 , wherein said sensor member comprises the accelerometer, and where said tapping detector is implemented using said accelerometer.
14. A hearing aid device according claim 1 , wherein the hearing aid device comprises a hearing aid, a listening device, an active ear-protection device, an earphone or a headset adapted to receive audio signals electronically providing the audio signals as received or modified as audible signals to at least one of the user's ears.
15. A hearing aid system comprising
at least one hearing aid device according to claim 1 , and
an auxiliary device,
wherein the hearing aid system is configured to allow the at least one hearing aid device and the auxiliary device to communicate with each other.
16. A hearing aid system according to claim 15 , wherein the hearing aid device(s) comprise(s) means for wirelessly logging the location of the hearing aid device on the auxiliary device.