Sketch a block diagram showing how you might design an array of filters to isolate each of the 5 EEG waves. Identify the filter type, and appropriate cut-off frequencies. Suggest an appropriate sampling frequency. (3 marks) Sketch a block diagram showing how you might design an array of filters to isolate each of the 5 EEG waves. Identify the filter type, and appropriate cut-off frequencies. Suggest an appropriate sampling frequency