EarRecorder: A Multi-Device Earable Data Collection Toolkit.

Earables are a hot topic in wearable research. An increasing number of off-the-shelf devices support collecting sensor data for different use cases. Following this trend, we introduce EarRecorder – a unifying, open-source app that connects to multiple earables (eSense, Cosinuss°, regular earphones). The app can collect data from multiple sensor streams at the same time and lets users label the data during recording. Two user studies allowed us to optimize the usability of the app further and to validate its functionalities. In the future, we hope to include new earables with open APIs and establish a community that advances the app further.