[Mne_analysis] how to see the recording time of split files

Ji Won Bang kirstens03 at gmail.com
Tue Aug 30 16:21:04 EDT 2011
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Hi,

Thanks for your reply!

The data was split automatically, coz we recorded for about 2 hrs while the
subject was sleeping inside MEG.

So we have raw.fif, raw-1.fif, raw-2.fif files.

And when I open the fif file using "mne_browse_raw", each file starts from 0
sec, although those 3 files were recorded consecutively, like raw.fif ->
raw-1.fif -> raw-2.fif. (no stopping while recording)

So I cannot check the exact starting time or ending time of each file.

Several months ago, I remember one of our past post-doc has seen the same
problem and thus checked the exact time points by using some other
command(don't remember).

I still don't know why the time points do not appear consecutively.

Please let me know if you need any more information!

Thanks a lot.

Best,
Ji Won Bang

2011/8/30 Alexandre Gramfort <gramfort at nmr.mgh.harvard.edu>

> Hi,
>
> could you give more details on how you split the files and if you
> applied some kind
> of processing like filtering for example?
>
> you could certainly look at the file length from matlab or python but I
> think
> mne_browse_raw show this info in the gui
>
> Alex
>
> On Tue, Aug 30, 2011 at 3:41 PM, Ji Won Bang <kirstens03 at gmail.com> wrote:
> > Hi, all.
> > I'm trying to see the starting and ending time of fif file.
> > When the data is too big, it is split into several files such as
> raw-1.fif,
> > raw-2.fif..
> > I assume one of the split files' ending time and the right next file's
> > starting time is not continuous, although the data were recorded
> > continuously.
> > Is there anyone how I can check the starting and ending time of files?
> (not
> > thru mne_browse_raw, coz every file starts from 0 sec if I use it, no
> matter
> > the file is recorded continuously or not)
> >
> > I appreciate your comment in advance!!!!!
> > Best,
> > Ji Won Bang
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