Hearing device incorporating user interactive auditory display
A hearing device comprises a processor configured to generate a virtual auditory display comprising a sound field, a plurality of disparate sound field zones, and a plurality of quite zones that provide acoustic contrast between the sound field zones. The sound field zones and the quiet zones remain positionally stationary within the sound field. One or more sensors are configured to sense a plurality of inputs from the wearer. The processor is configured to facilitate movement of the wearer within the sound field in response to a navigation input received from the one or more sensors. The processor is also configured to select one of the sound field zones for playback via a speaker or actuation of a hearing device function in response to a selection input received from the one or more sensors.
1. A method implemented by a hearing device arrangement worn by a wearer, the method comprising:
generating, by the hearing device arrangement, a virtual auditory display comprising a sound field, a plurality of disparate sound field zones, and a plurality of quiet zones, wherein each quiet zone is a separate zone associated with its own sound field zone, such that each quiet zone provides acoustic contrast between the sound field zones by encompassing its associated sound field zone, the sound field zones and the quiet zones remaining positionally stationary within the sound field;
sensing an input from the wearer via one or more sensors at the hearing device arrangement;
facilitating movement of the wearer within the sound field in response to a navigation input received from the one or more sensors; and
selecting one of the sound field zones for playback to the wearer or to actuate a function by the hearing device arrangement in response to a selection input received from the one or more sensors.
2. The method of claim 1 , wherein generating comprises:
generating N disparate sound field zones; and
generating at least N−1 quiet zones.
3. The method of claim 1 , wherein facilitating wearer movement comprises facilitating virtual or actual movement of the wearer within the sound field.
4. The method of claim 1 , wherein generating the virtual auditory display comprises simultaneously or sequentially playing back sound from each of the sound field zones.
5. The method of claim 1 , comprising adjusting wearer-perceived amplitude and directionality of sound emanating from the sound field zones in response to movement of the wearer within the sound field.
6. The method of claim 1 , comprising binauralizing sound emanating from the sound field zones using a set of head related transfer functions (HRTFs).
7. The method of claim 6 , comprising:
synthesizing the sound field using virtual loudspeakers;
wherein the set of HRTFs are calculated based on synthesizing the virtual loudspeakers.
8. The method of claim 1 , wherein the one or more sensors are configured to sense movement of one or both of the wearer's head and body.
9. The method of claim 1 , wherein the one or more sensors comprise one or both of an electrooculographic (EOG) sensor and an electroencephalographic (EEG) sensor.
10. The method of claim 1 , wherein at least some of the sound field zones are associated with a separate audio stream.
11. The method of claim 1 , comprising wirelessly receiving a plurality of audio streams from one or more sources.
12. The method of claim 1 , further comprising selectively activating and deactivating the virtual auditory display in response to a voice command or an input received from the one or more sensors.
13. An apparatus, comprising:
a pair of hearing devices configured to be worn by a wearer, each hearing device comprising:
a processor configured to generate a virtual auditory display comprising a sound field, a plurality of disparate sound field zones, and a plurality of quiet zones, wherein each quiet zone is a separate zone associated with its own sound field zone, such that each quiet zone provides acoustic contrast between the sound field zones by encompassing its associated sound field zone, the sound field zones and the quiet zones remaining positionally stationary within the sound field;
one or more sensors configured to sense a plurality of inputs from the wearer, the processor configured to facilitate movement of the wearer within the sound field in response to a navigation input received from the one or more sensors; and
a speaker;
wherein the processor is configured to select one of the sound field zones for playback via the speaker or to actuate a hearing device function in response to a selection input received from the one or more sensors.
14. The apparatus of claim 13 , wherein the processor is configured to generate N disparate sound field zones and at least N−1 quiet zones.
15. The apparatus of claim 13 , wherein the processor is configured to facilitate virtual or actual movement of the wearer within the sound field in response to the navigation input received from the one or more sensors.
16. The apparatus of claim 13 , wherein:
the processor is operable in a navigation mode and a selection mode;
the processor is configured to simultaneously or sequentially play back sound from each of the sound field zones via the speaker in the navigation mode; and
the processor is configured to play back sound from the selected sound field zone via the speaker or actuate a hearing device function in the selection mode.
17. The apparatus of claim 13 , wherein the processor is configured to adjust wearer-perceived amplitude and directionality of sound emanating from the sound field zones in response to movement of the wearer within the sound field.
18. The apparatus of claim 13 , wherein the processor is configured to binauralize sound emanating from the sound field zones using a set of head related transfer functions (HRTFs).
19. The apparatus of claim 13 , wherein:
the sound field is synthesized using virtual loudspeakers; and
the set of HRTFs are calculated based on synthesizing the virtual loudspeakers.
20. The apparatus of claim 13 , wherein the processor is configured to modify a set of filters for adjusting the acoustic contrast between the sound field zones and the quiet zones in response to movement of the wearer within the sound field.
21. The apparatus of claim 13 , wherein the one or more sensors are configured to sense movement of one or both of the wearer's head and body.
22. The apparatus of claim 13 , wherein the one or more sensors comprise one or both of an electrooculographic (EOG) sensor and an electroencephalographic (EEG) sensor.
23. The apparatus of claim 13 , wherein at least some of the sound field zones are associated with a separate audio stream received by a wireless transceiver of the hearing device.
24. The apparatus of claim 13 , wherein the virtual auditory display is configured for selective activation and deactivation in response to a voice command received by a microphone of the hearing device or an input received by the processor from the one or more sensors.