OpenBCI_GUI bandpass filter "butter(2,[0.02 5]/(250/2))" ?

P300_MAN · May 2015

Dear all;

I would like to do this bp filter in real time.So, I modified bp filter in openBCIGUI. But I cannot see correct data as I see in Matlab.

Any dicussion about this before? I would like to see something like this with EOG in real time

http://eeghacker.blogspot.jp/2013_11_01_archive.html

//butter(2,[0.02 5]/(250/2)); %bandpass filter

b = new double[] {

0.003593967964036, 0.0f, -0.007187935928073, 0.0f, 0.003593967964036

};

a = new double[] {

1.0f, -3.823280181761617, 5.484347591751982, -3.498844370658582, 0.837776964329645

};

Thank you in advance

chipaudette · July 2015

I am confused about what you want to do. Are you trying to do real-time filtering in Matlab? Or are you trying to do it in Processing?

Chip

Comments