SigViewer not reading .EVT in OS X 10.14.4 #121
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Thanks for your feedback, we're currently working on bringing EVT support back. In the meantime, you could use version 0.5.2: https://sourceforge.net/projects/sigviewer/files/0.5.2/ |
Thank you for that, but it's still not working - same message - "File not supported". It's the only readable file, it's an .EVT. The file used to open, but not anymore. If the file is damaged, I have no way of knowing.
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How did you open that file? You can't directly open EVT files, you need to load a normal file first and then import events from the EVT file. |
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I use the "folder" icon in the upper left hand corner, and this is the inside of the folder that I access:
I wish I knew what you meant by a regular file, but this is the only file that shows up as accessible. Every other file in my scans folder is blocked out, unless I use the . . I did that also, in my testing, and tried the .EEG file. The program immediately crashes, and here is the response: |
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Yeah, I don't know why the EVT file shows up, but you can't open EVT files because they only contain events (and no data). I suspect that the EEG file which crashes SigViewer is not a BrainVision file - correct? I'd be interested in what used to work on your previous macOS and what doesn't work now. Which version did you use then? |
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I believe I used the version of SigViewer that was the latest version in January - my mind's a bit foggy on the release version number. I basically did the same thing that I did here, and it opened up nicely. As far as Brainvision - I have no idea. I contacted my neurologist's office and had them prepare a CD for me. The type of scan, after dropping in the search item as "EEG2100" seems to be one of a variety of medical grade scanners, as it's for my brain scans :) Also, if/when this does get remedied and I can use it again, could there be a way to export the scans as some sort of vector image, a la .SVG? I not only want to see where the issues are in my scan (not going to specify here), but I would like to use it for other purposes. |
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I didn't release a new version since January so this is strange. I'm a bit confused when you speak of scans - are you trying to load MRI data? SigViewer can only display EEG/MEG data. |
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I used whatever version of SigViewer was available in January 2019. I did not memorize the number. I just downloaded the application and ran it. It worked. I was on a different version of OS X at the time, most likely 10.13.XX. Yesterday, I tried loading same EEG data (not MRI). I have received a CD of my EEG scans from my neurologist's office. I was able to view the EEG scan in SigViewer before using either the .EVT or .EEG (this is what I cannot remember). But that does not matter, because I cannot load either type of file. I even went and downloaded earlier versions of SigViewer to try to view those files, and I have had no luck. I even took the other file types in the same folder and tried them, just to see if I was choosing the wrong file. No luck. Here's photo of the available files.
So, either the files are damaged, or SigViewer cannot read them. Why SigViewer used to work and does not work now is my question. Why does .EEG cause an application crash and why does .EVT not open, even though it is an option in the drop-down menu? |
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Can you share these files with me somehow? |
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Absolutely, if you have an email I can contact you at, I'll set up a link to share them with you. They're a bit large to send via email, and I'd rather not share them with the world here. |
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Could you send me a private message on Twitter? My handle is |
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Well, I tried. Messaging is not allowed to your account. I followed you to see if that would change it. We'll find out :) |
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These seem to be Nihon Kohden files. This format is not supported by SigViewer (and it never was). I have no idea why you could load these files at one point, but this was either coincidentally (because the underlying library does support this format) or you used some other unofficial build of SigViewer. It is really difficult to reproduce this issue without knowing which version of SigViewer worked for you (I just tried 0.6.2 and 0.5.2 on my Mac and it crashed). |
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You could use EDFbrowser, which supports converting these files to the more popular EDF+ format (which SigViewer supports). However, they do not provide an installer for Mac, so it might be easiest if you do this on Windows. |
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Ah, that's too bad. Thank you for checking into this. I'll find some other way, maybe one of our old computers will do this. Thanks again! |
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I'm not a coder, just a curious person with their own .EVT / .EEG files to read. I downloaded SigViewer a few months ago on an older 2012 Mac Mini and it worked and read my file. Now I'm on a 2018 Mac Mini and cannot read the file - "file not supported", even though it's the only file that I have that shows up as readable. Any help would be greatly appreciated, as I'd really like to further dissect my scan!
Thanks -
Kirk Markarian
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