Development of a speech system using BCI based on ERD/ERS for patients suffering from amyotrophic lateral sclerosis

Abstract

The article describes the design process for a speech synthesis system based on ERD/ERS for patients suffering from amyotrophic lateral sclerosis (ALS) and for other patients with significantly reduced mobility. The authors performed a literature overview concerning the disease and the systems currently supporting speaking. The method described here is based on ERD/ERS technology. The system was built with the use of bioactive sensors mounted on the head, triggered by a signal known as MI tasks. The raw signals are transmitted to the external application via VRPN server and, after filtering, is allowed to build the words and phrases. The device has been tested so that the optimal location of the sensor on the head could be chosen.