Advances on breathing based text input for mobile devices

Abstract

This paper highlights the progress of exploring a puffing activated keyboard for mobile phones. This approach aims to stand as an assistive technology for users with motor disabilities. From the implementation of prior versions we were able to identify recurring and persistent issues, such as ambient noise handling and keyboard layout. Some of these issues were detected during the experiments and some were reported by users. The advances achieved in this work are narrated from the outcomes of the implementation and experimentation of a mobile phone application that handles e.g. background noise by performing signal processing and a new keyboard layout.