Project 2012: Unspoken Speech Detection Using a Brain-Computer Interface







Signal Analysis:

 A flow chart of signal analysis methods is shown here.  In this experiment, signals were amplified with programmable gain amplifiers (12X) in the 1298 chipset, a DRL was employed to clean up the signal, and Butterworth bandpasses were used to remove signals outside the interesting range (3- 48 Hz). FFT, LDA and Bayes classifiers were used to analyze the resulting signals.