I want to use a lowpass filter.

YuminosukeSatoYuminosukeSato Japan
in OpenBCI_GUI

I want to use lowpass filter in OpenBCI application.

Comments

  • wjcroftwjcroft Mount Shasta, CA

    Yumino, hi.

    I believe the available bandpass filter settings in the OpenBCI_GUI are given here:

    https://github.com/OpenBCI/OpenBCI_GUI/blob/master/OpenBCI_GUI/SessionSettings.pde#L120

    String [] dataProcessingBPArray = {"1-50 Hz", "7-13 Hz", "15-50 Hz", "5-50 Hz", "No Filter"};

    So three of those bandpass filters have a built-in lowpass at 50 Hz, and the other at 13 Hz. The 50 Hz lowpass is not sufficient for you? If your mains frequency is 50 Hz (or even 60 Hz), you should use the notch also, because mains is so strong.

    If you need other filter combinations, those can be done in Brainflow. Or other languages such as MATLAB.

    Regards, William

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