Hi Star Strider, I find your answers regarding the filters to be quite insightful.
I have a similar problem. I have used the Butterworth filter of 5th order and used 0.7Hz and 50 Hz as cutoff frq for passband filter. I am quite sure the frequncy beyond this frequncy region is not of point of interest. My sampling frequncy : 200Hz.
Still I can see there is noise as it can be seen in the attched figure.
Can you please help me to further denoise the data/filter data? I have attached the .fig file aswell for your reference.
Thanks in advance.