Need to add two more bottons to shift the Y scale of the time series

chenchihyangchenchihyang Japan
in OpenBCI_GUI

Hi, I am using the Cyton board to record EOG. But due to the property of EOG (at the end it is DC shifts), I would like to use only the low pass filter (band pass with 0-50Hz). In this case, DC removing function will be gone. Due to this , I would like to add two more botton for each channel to shift the current Y scale (-100 uV~100 uV to 0 uV~200 uV, for example). Would someone please point to me how can I modify the time series widget to achieve my goal?
Thanks

Comments

  • wjcroftwjcroft Mount Shasta, CA

    Chen, hi.

    Since the filters applied in the GUI, only affect the visual Time Series display, not the recording, it is safe to merely remove some of the DC offset with the appropriate filter values. A typical low band limit used is 0.5 Hz. But you could go above or below that if it makes the Time Series display more acceptable to you. For example try values in the range, .5, .4, .3, .2, .1, .05, etc.

    William

  • chenchihyangchenchihyang Japan

    Thanks

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