Design and Validation of a Bike Helmet with Bone Conduction Music Playback
François Rochon, Jérémie Voix · Canadian acoustics · 2016
This paper presents a proof of concept to develop a system of bone transducers that would equip a bike helmet and provide music directly to the cochlea by bone conduction.The purpose of this design is to allow the ears of the wearer to remain unobstructed to ensure a comfortable music listening while maintaining auditory awareness and localisation capabilities.A review of the scientific literature about bone conduction shows that of all possible skull locations, the condyle of the jaw presents the lowest threshold level of auditory perception when excited.This determined the choice for the final mounting system and the process for the audiometric measurements.The main result is a digital filter obtained with the output magnitude of the transducers and designed to provide comfortable and unobstructed music listening.