There's multiple issues with the filters that make using them difficult:
- When sampling (e.g. ExG) at 256 Hz (maybe even lower, didn't try that) and then trying to enable a filter crashes the entire app
- Lowpass and notch filters should not constrained to < 30 Hz (why not choose freely, based on sampling rate?). You need 50/60 Hz for notch to be even usable with ExG
- For the hjighpass (also lowpass, but not so important), you can't set decimal numbers (e.g. 0.5) because the (German) numpad only allows comma and no point
There's multiple issues with the filters that make using them difficult: