A Self-Fitting Hearing Aid Need and Concept

We are getting very close to meeting this 2011 definition with some of the hearable and OTC products on the market:

“…a personal amplification device that is equipped with an onboard tone generator to enable user-controlled, automated, in situ audiometry; an onboard prescription to determine the initial hearing aid settings; and a trainable algorithm to enable user-controlled fine-tuning. The device is thus assembled, fitted, and managed by the user without the need for audiological or computer support.”

Here’s an update:

Of course, I won’t be satisfied until built-in REMs are a thing: