Method and apparatus for localization of streaming sources in hearing assistance system
View Patent ↗A hearing assistance system streams audio signals from one or more streaming sources to a hearing aid set and enhances the audio signals such that the output sounds transmitted to the hearing aid wearer include a spatialization effect allowing for localization of each of the one more streaming sources. The system determines the position of the hearing aid set relative to each streaming source in real time and introduces the spatialization effect for that streaming source dynamically based on the determined position, such that the hearing aid wearer can experience a natural feeing of the acoustic environment.
1. A hearing assistance system for transmitting sounds to a user from one or more streaming sources, the system comprising:
a hearing aid configured to be communicatively coupled to the one or more streaming sources via one or more wireless links to receive an audio signal streamed from a streaming source of the one or more streaming sources, process the audio signal to produce an output sound, and transmit the output sound to the user, the output sound including a spatialization effect allowing the user to locate the streaming source from which the audio signal is received;
a positioning system configured to determine a distance between the hearing aid and the streaming source from which the audio signal is received; and
a spatialization processor configured to select a spatialization technique from a plurality of spatialization techniques based on the distance and spatially enhance the audio signal using the distance and the selected spatialization technique such that the output sound includes the spatialization effect.
2. The system of claim 1 , wherein the spatialization processor is further configured to add reverberation to the audio signal.
3. The system of claim 2 , wherein the hearing aid is configured to monitor a listening environment, and the spatialization processor is configured to add reverberation to the audio signal according to the listening environment.
4. The system of claim 1 , wherein the hearing aid comprises a portion of the positioning system.
5. The system of claim 4 , wherein the hearing aid comprises the spatialization processor.
6. The system of claim 4 , wherein the hearing aid comprises a positioning sensor of the positioning system, the positioning sensor configured to determine the distance between the hearing aid and the streaming device from which the audio signal is received.
7. The system of claim 6 , wherein the positioning sensor is further configured to determine an orientation of the hearing aid relative to the streaming device from which the audio signal is received.
8. The system of claim 1 , further comprising the one or more streaming sources, wherein the one or more streaming sources include a portion of the positioning system.
9. The system of claim 8 , wherein the streaming source from which the audio signal is received comprises the spatialization processor.
10. The system of claim 1 , wherein the positioning system is configured to determine the distance in real time.
11. A method for transmitting sounds to a user from one or more streaming sources, the method comprising:
receiving an audio signal from a streaming source of the one or more streaming sources using a hearing aid;
determining a distance between the hearing aid and the streaming source from which the audio signal is received;
selecting a spatialization technique from a plurality of spatialization techniques based on the distance;
enhancing the audio signal using the distance and the selected spatialization technique;
producing an output sound using the enhanced audio signal using the hearing aid, the output signal including a spatialization effect allowing the user to locate the streaming source from which the audio signal is received; and
transmitting the output sound to the user using the hearing aid.
12. The method of claim 11 , further comprising adding reverberation to the audio signal.
13. The method of claim 12 , wherein adding reverberation to the audio signal comprises adding reverberation to the audio signal using predetermined parameters.
14. The method of claim 12 , wherein adding reverberation to the audio signal comprises:
monitoring an environment of the hearing aid;
determining reverberation parameters based on the environment; and
adding reverberation to the audio signal using the determined parameters.
15. The method of claim 12 , wherein adding reverberation to the audio signal comprises adding reverberation to the audio signal using the hearing aid.
16. The method of claim 11 , comprising:
determining a position of the hearing aid relative to the streaming source from which the audio signal is received, including determining the distance and an orientation of the hearing aid relative to the streaming device from which the audio signal is received; and
enhancing the audio signal using the position and the selected spatialization technique.
17. The method of claim 16 , wherein determining the position comprises determining the position in real time.
18. The method of claim 16 , wherein determining the position comprises receiving an incident signal and sensing one or more parameters of the received incident signal.
19. The method of claim 18 , wherein determining the position comprises determining the position using a sensor in the hearing aid.
20. The method of claim 18 , wherein determining the position comprises determining the position using a sensor in the streaming source from which the audio signal is received.