Real ear measurement adaptor with internal sound conduit

1. A method for configuration of a hearing assistance device, comprising:

placing a cover onto the hearing assistance device housing, the cover including a sound tube port adapted for an acoustic connection to a microphone port on the hearing assistance device housing; and

attaching an earhook to the hearing assistance device housing, the earhook and housing mating using an opening for the earhook in the cover.

2. The method of claim 1 , wherein placing includes acoustically sealing a second microphone port of the hearing assistance device.

3. The method of claim 1 , further comprising coupling a first end of a sound tube with the sound tube port.

4. The method of claim 3 , further comprising coupling a second end of the sound tube to a coupler.

5. The method of claim 4 , further comprising coupling a second sound tube between the coupler and the earhook.

6. The method of claim 3 , further comprising positioning a second end of the sound tube in an ear canal of a wearer.

7. The method of claim 6 , wherein positioning includes inserting the second end of the sound tube through an opening of an ear bud.

8. The method of claim 6 , further comprising:

playing sound into the ear canal of the wearer;

recording sound received by the sound tube using the microphone; and

generating a real ear coupler difference (RECD) using the recorded sound.

9. The method of claim 1 , further comprising playing a plurality of sounds having a frequency between 0 and 8000 hertz.

10. The method of claim 9 , wherein the frequency of each sound of the plurality of sounds is separated in increments of about 100 hertz.

11. The method of claim 1 , further comprising playing sound within a linear range of a receiver to provide a substantially equal signal-to-noise ratio across a range of sound frequencies.

12. An apparatus for attaching to a hearing assistance device housing, comprising:

a first opening adapted to cover a portion of the housing;

a port to receive a sound tube and adapted to pass sound to a first microphone port on the hearing assistance device housing when the apparatus is placed on the hearing assistance device housing; and

an opening for an earhook, the opening adapted to provide for connection between the housing and the earhook.

13. The apparatus of claim 12 , further comprising the sound tube coupled to the port.

14. The apparatus of claim 12 , wherein at least a portion of the apparatus includes a flexible material.

15. The apparatus of claim 14 , wherein the flexible material is rubber.

16. The apparatus of claim 14 , wherein the flexible material is an elastomer material.

17. An apparatus for attaching to a hearing assistance device housing, comprising:

a first opening adapted to cover a portion of the housing;

a port to receive a sound tube and adapted to pass sound to a first microphone port of the hearing assistance device when the apparatus is placed on the hearing assistance device;

an opening for connection between the housing and an earhook; and

a portion adapted to acoustically seal a second microphone port.

18. The apparatus of claim 17 , further comprising a sound tube coupled to the port.

19. The apparatus of claim 17 , wherein at least a portion of the apparatus includes a flexible material.

20. The apparatus of claim 19 , wherein the flexible material is an elastomer material or rubber.

21. A method for configuration of a hearing assistance device, comprising:

placing a cover onto the hearing assistance device housing, the cover including a sound tube port adapted for an acoustic connection to a microphone of the hearing assistance device; and

attaching an earhook to the hearing assistance device housing, the earhook and housing mating using an opening in the cover,

wherein placing includes acoustically sealing a second microphone port of the hearing assistance device.