Silent Speech Interface Design Methodology and Case Study

Silent speech interfaces (SSI) will face unable talking or silent cell phoning ones, or used in military scenarios. The best sensors and their positions glued information sources of imagined words will be reviewed under decoding model and Figure of merits (FOM) with new features toward multimodal Brain-brain interface (BBI) fitting consciousness communication. The data probing channels of known SSIs can be outlined into three logic categories of traditional articulators, intrinsic brain and neurovascular pathways. Eight kinds of corresponding sensors are evaluated importantly with six-axes spider-web charts. Our novel case of NIRS-based SSI showcased is with millisecond resolution. Above works may enhance the base of Brain Health Microelectronics.