Adapting the PIRATE Design for Cost-Effective In-Ear Microphones (en)
* Presenting author
Abstract:
In-ear microphones are crucial for individual binaural recordings and measurements. However, only a few publicly available systems exist. The PIRATE microphone design proposed by Denk et al. (2019) offers a cost-effective solution for in-ear microphones. The microphone comprises two key components: a MEMS microphone and an interchangeable 3D-printed earplug designed to accommodate various ear canal sizes. For several research projects in the past years, we used adapted versions of the PIRATE microphones. Throughout this period, we made minor refinements to the microphone's design between assembly cycles based on practical experience. The redesigned earplug simplifies manufacturing by using a 3D-printed mold for silicone casting instead of relying on a flexible 3D-printing material. This contribution presents the adapted designs of the in-ear microphones and compares the new casting method to flexible 3D-printed materials. The design files necessary to reproduce our design will be made publicly available.