Filtering scenarios

EEG
EMG
 Notch filter is ON
 Low-pass/Band-pass is ON
Both the 50-Hz-mains noise filter and the Low-pass (EEG) / Band-pass (EMG) filters may be individually switched off.


These are real, measured filter curves of the equipment used in the Zurich Sleep Lab.

Filter characteristics

 

 

 

©1998 BITS OF SLEEP (Demo) : Human sleep investigation: Signal analysis basics.