> Earables are ear-worn devices that offer functionalities beyond basic audio in- and output. In this paper we present the ongoing de- velopment of a new, open-source, Arduino-based earable platform called OpenEarable. It is based on standard components, is easy to manufacture and costs roughly $40 per device at batch size ten.
> We demonstrate the versatility of the prototyping platform through three different example application scenarios.
The three example apps are:
> Measuring motion on the ear is a common application in the earable space which can be used for a number of applications
> A popular ear canal pressure application is the detection of jaw motions
> It is possible for the ultrasonic microphone to pick up an inaudible signal from the speaker. This information can be used to understand the shape of the ear canal because the sound is reflected differently depending on the shape, a principle which can be used for authentication
The paper also mentioned ClearBuds[1] which looks interesting too.