Self-fitting of a hearing device
Disclosed herein are systems and methods enabling hearing aid fitting by a non-expert consumer at home. The method in one embodiment involves delivering a sequence of test audio signals corresponding to natural sound segments to a non-acoustic input of a programmable hearing device in-situ, while allowing the consumer to adjust fitting parameters based perceptual assessment of hearing device output. The sound segments define a fitting soundscape representing a practical range of sounds within the normal human auditory range, with each sound segment corresponding to one or more fitting parameters of the programmable hearing device. The consumer is instructed to listen to the output of the in-situ hearing device and adjust controls related to corresponding fitting parameters. In one embodiment, the fitting system comprises a personal computer and a handheld device providing calibrated test audio signals and a programming interface. The systems and methods disclosed herein allow home dispensing of hearing devices without requiring specialized instruments or clinical settings.
1. A method of hearing device fitting for a consumer, the method comprising:
generating a suprathreshold output from a programmable hearing device in-situ, wherein the output is based, at least in part, on fitting parameters programmed into the programmable hearing device; and
making adjustments to a plurality of the fitting parameters based, at least in part, on the consumer's assessment of the output, wherein the adjustments comprise a first adjustment made to one or more first fitting parameters corresponding to a relatively loud level sound segment and a second adjustment made to one or more second fitting parameters corresponding to a relatively soft level sound segment.
2. The method of claim 1 , wherein the output comprises multiple natural sounds.
3. The method claim 2 , wherein the natural sounds are selected from the group consisting of male speech, female speech, chirp, and background noise.
4. The method of claim 1 , wherein the fitting parameters comprise any of a loud level gain, a soft level gain, a compression ratio, a maximum power output, and an expansion ratio.
5. A method of adjusting a hearing device for a consumer, the method comprising:
generating a suprathreshold output from a programmable hearing device in-situ, wherein the output is based, at least in part, on programmable parameters programmed into the programmable hearing device; and
making adjustments to a plurality of the programmable parameters based, at least in part, on the consumer's assessment of the output, wherein the adjustments comprise a first adjustment made to one or more first programmable parameters corresponding to a relatively loud level sound segment and a second adjustment made to one or more second programmable parameters corresponding to a relatively soft level sound segment.
6. A programmable hearing device comprising:
a speaker configured to generate a suprathreshold output based, at least in part, on programmable parameters of the programmable hearing device; and
a processing unit configured to make adjustments to the programmable parameters in-situ based on a consumer's assessment of the output, wherein the adjustments comprise a first adjustment made to one or more programmable parameters corresponding to a relatively loud level sound segment and a second adjustment made to one or more programmable parameters corresponding to a relatively soft level sound segment.
7. The programmable hearing device of claim 6 , further comprising a wireless interface configured to receive one or more test audio signals from any of a personal computer, a smartphone, or a tablet.
8. The programmable hearing device of claim 6 , wherein the output comprises at least two sound segments representing natural sound, wherein the sound segments are substantially non-overlapping in a combination of sound level and frequency characteristics.