bilalzonjy / edfviewer

Unminified code for EDF viewer. This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License

EDFViewer verson 2.1

version 1 is available at: https://bilalzonjy.github.io/EDFViewer_V1/EDFViewer_V1.html

Project in progress.

The viewer supports EDF and continuous EDF plus formates.

Please dont hasitate to report any bug.

Contact:

[email protected]

Bilal

edfviewer's Issues

How does EEGfilter work?

Hi BilalZonjy, I have seen EEGfilter.js and try to see how it work.
50/60 Hz is called notch filter, remove 50, 60 Hz noise.
HP is stand for high-pass filter. To remove DC.
I had searched for long time but I can not figure out how EEGfilter.js works, how EEGfilter.js is created.
Can you explain more details about this file?

• How can I get each array in each frequences?
• What is A, B Zi stand for?
• What is idea Applay_filter work?

HP Filter Value / Amplitude scale

Hi,

What is the cutoff frequency of the high-pass filter ?
And how can I know the scale applied for each amplitude value (in µV)

thanks in advance !