converting 24 bit data
Posted: Mon May 21, 2007 12:06 pm
Hi all,
we have recently bought a Biosemi EEG and Brain Vision as analyzing software. We also downloaded EEG Lab to compare the data converted by the Biosemi converter (downloaded from the Biosemi homepage) with the original data. However, one thing that puzzles me and that's the reason for this post is that we record our raw EEG with 24 bit (using Activ II electrodes), however the converter (and thus the resulting EDF file) has only 16 bit. Can somebody please tell me which sort of information we loose by converting data and how we can circumvent this problem? many thanks in advance, miriam
we have recently bought a Biosemi EEG and Brain Vision as analyzing software. We also downloaded EEG Lab to compare the data converted by the Biosemi converter (downloaded from the Biosemi homepage) with the original data. However, one thing that puzzles me and that's the reason for this post is that we record our raw EEG with 24 bit (using Activ II electrodes), however the converter (and thus the resulting EDF file) has only 16 bit. Can somebody please tell me which sort of information we loose by converting data and how we can circumvent this problem? many thanks in advance, miriam