Methods for wideband receiver and module for a hearing assistance device
View Patent ↗Disclosed herein, among other things, are systems and methods for wideband receiver modules for hearing assistance devices. One aspect of the present subject matter includes an apparatus for use with a hearing assistance device. The apparatus includes two low frequency spout-less receivers configured to act as a woofer, and a dual receiver attached to the front of the woofer, the receiver configured to act as a tweeter. According to various embodiments, the acoustical load for each of the two low frequency receivers form a channel on each side of the tweeter. The apparatus is adapted to extend bandwidth of the hearing assistance device and to maintain low vibration of the dual receiver, in various embodiments. Various embodiments include sharing back volumes for receivers and improved perforated wax protections guides to further improve device performance.
1. An apparatus for use with a hearing assistance device, comprising:
two low frequency spout-less receivers configured to act as a woofer; and
a dual receiver attached to the front of the woofer, the receiver configured to act as a tweeter,
wherein the acoustical load for each of the two low frequency receivers form a channel on each side of the tweeter, and
wherein the apparatus is adapted to extend bandwidth of the hearing assistance device and to maintain low vibration of the dual receiver.
2. The apparatus of claim 1 , wherein the low frequency receivers share one back volume to improve low frequency performance.
3. The apparatus of claim 1 , wherein the tweeter includes a single receiver.
4. The apparatus of claim 1 , wherein a total acoustical output of the dual receiver is divided into two acoustical flows by placing their outlets outside of a common perimeter of the dual receiver.
5. The apparatus of claim 1 , wherein the woofer includes a dual receiver.
6. The apparatus of claim 1 , further comprising:
a perforated angled tube connected to an outlet for the tweeter, the tube configured for wax protection and improved output of the apparatus.
7. The apparatus of claim 1 , wherein the two low frequency spout-less receivers are the same type.
8. The apparatus of claim 1 , wherein the two low frequency spout-less receivers are placed to combine their low frequency sounds in front of the tweeter.
9. The apparatus of claim 1 , wherein the two low frequency spout-less receivers are placed without a front cavity.
10. The apparatus of claim 1 , wherein an outlet of the tweeter is aligned behind a main outlet of the apparatus.
11. A receiver assembly, comprising:
a housing;
two low frequency spout-less receivers within the housing, the two low frequency receivers configured to act as a woofer;
a dual receiver within the housing and attached to the front of the woofer, the receiver configured to act as a tweeter; and
a perforated angled tube connected to an outlet for the tweeter, the tube configured for wax protection and improved acoustical output of the assembly,
wherein the acoustical load for each of the two low frequency receivers form a channel on each side of the tweeter, and
wherein the receiver assembly is adapted to maintain low vibration of the dual receiver.
12. The receiver assembly of claim 11 , wherein the tweeter includes a single receiver.
13. The receiver assembly of claim 11 , wherein the tweeter, the housing and the tube form an angled sound guide configured for improved sound delivery.
14. The receiver assembly of claim 11 , wherein the tweeter includes a spout.
15. The receiver assembly of claim 11 , wherein the tweeter is spout-less.
16. The receiver assembly of claim 11 , wherein the tweeter is arranged in a straight line with the woofer.
17. The receiver assembly of claim 11 , wherein each of the two low frequency receivers is back vented into a back volume of the other low frequency receiver.
18. The receiver assembly of claim 11 , wherein the two low frequency receivers share one back volume.
19. The receiver assembly of claim 11 , wherein a front volume for the woofer is formed using the housing.
20. The receiver assembly of claim 11 , wherein sides of the woofer form an angle with the tweeter to change the form factor of the assembly for better fit.
21. The receiver assembly of claim 11 , wherein the woofer is vented in a space formed along sides of the tweeter.
22. A method of making a receiver assembly for a hearing assistance device, the method comprising:
providing two low frequency spout-less receivers configured to act as a woofer;
attaching a dual receiver to the front of the woofer, the receiver configured to act as a tweeter; and
forming a channel on each side of the tweeter using the acoustical load for each of the two low frequency,
wherein forming the channel includes extending bandwidth of the hearing assistance device and maintaining low vibration of the dual receiver.
23. The method of claim 22 , further comprising connecting a perforated angled tube to an outlet for the tweeter, the tube configured for wax protection and improved high frequency output.
24. The method of claim 22 , further comprising arranging the tweeter in line with the woofer.
25. The method of claim 22 , wherein attaching a receiver to the front of the woofer includes attaching a spout-less receiver to the front of the woofer.
26. The method of claim 22 , wherein the low frequency receivers share one back volume to improve low frequency performance.