This book provides a broad and comprehensive overview of the existing
technical approaches in the area of silent speech interfaces (SSI), both
in theory and in application. Each technique is described in the context
of the human speech production process, allowing the reader to clearly
understand the principles behind SSI in general and across different
methods. Additionally, the book explores the combined use of different
data sources, collected from various sensors, in order to tackle the
limitations of simpler SSI approaches, addressing current challenges of
this field. The book also provides information about existing SSI
applications, resources and a simple tutorial on how to build an SSI.