Search found 1198 matches

by mellinger
21 May 2023, 12:13
Forum: Known Issues
Topic: P300Classifier TransmitChList
Replies: 3
Views: 62

Re: P300Classifier TransmitChList

In the P300Classifier program, channel names are ignored, and only one-based indices are used. In the TransmitChList parameter of the source module, first channel names are matched, and then one-based indices. So if you actually use 0-based indices in ChannelNames, and specify "0-7" as a r...
by mellinger
12 May 2023, 08:04
Forum: Known Issues
Topic: P300Classifier TransmitChList
Replies: 3
Views: 62

Re: P300Classifier TransmitChList

Hi, BCI2000 channel numbering is 1-based in the GUI. TransmitChList uses a matching algorithm to determine which channels it transmits. So, if you specify 0-7, it will try 0 (no match), 1 (match), 2 (match), ... 7(match) and omit channel 8. If you want all channels to be transmitted, just specify an...
by mellinger
29 Mar 2023, 10:54
Forum: Software Development
Topic: BCI2000 build code errors, gNautilus
Replies: 4
Views: 133

Re: BCI2000 build code errors, gNautilus

I will download VisualStudio 2022, and reinstall QT to match. Note that there is no Qt binary distribution specific to VS 2022, but the one for VS 2019 will work. The errors related to the building icons stop the code from creating the prog files it created before, is this something that will be fi...
by mellinger
28 Mar 2023, 08:25
Forum: Software Development
Topic: BCI2000 build code errors, gNautilus
Replies: 4
Views: 133

Re: BCI2000 build code errors, gNautilus

Hi, and welcome to the BCI2000 forum! CMake is not deleting your entry but moves it below the CMAKE group. You will find it when expanding that group. The errors related to building icons are irrelevant. They occur on some systems due to concurrent access to files (CMake does not offer any synchroni...
by mellinger
16 Mar 2023, 12:46
Forum: Data Analysis
Topic: Error using load_bcidat in MATLAB
Replies: 3
Views: 164

Re: Error using load_bcidat in MATLAB

Thanks for the information.
We are currently working on a new BCI2000 installer.
by mellinger
15 Mar 2023, 10:40
Forum: Data Analysis
Topic: Error using load_bcidat in MATLAB
Replies: 3
Views: 164

Re: Error using load_bcidat in MATLAB

This is a Matlab exception that indicates that no memory could be allocated for the signal data in your file. Within Matlab, a file requires a little bit more memory than its size on disk. With a 32 bit version of Matlab, the maximum file size that load_bcidat() can read is about 1.5GB. You may get ...
by mellinger
14 Mar 2023, 11:12
Forum: Known Issues
Topic: PC300Classifier does not open
Replies: 2
Views: 112

Re: PC300Classifier does not open

This is due to an error in P300Speller that was fixed in r6166. I'm sorry that you experienced this issue. We generally recommend to build BCI2000 from the latest SVN version as described here: https://www.bci2000.org/mediawiki/index.php/Programming_Howto:Building_and_Customizing_BCI2000 If you woul...
by mellinger
07 Feb 2023, 10:41
Forum: Software Development
Topic: BCI2000-based softerware development
Replies: 1
Views: 215

Re: BCI2000-based softerware development

Hi,

the BCI2000 GUI is not a library. If you want to write your own GUI on top of BCI2000, I suggest you start out with the Operator (OperatorQt) and modify it by adding or removing elements as you see fit.

HTH
Jürgen
by mellinger
23 Dec 2022, 10:55
Forum: Known Issues
Topic: Need help connecting via LSL
Replies: 5
Views: 407

Re: Need help connecting via LSL

It seems that the source module is unable to make a connection to the OpenBCI stream. It looks for a stream of type "EEG" which seems not to be available. Did you compile BCI2000 yourself? If so, you might update to the latest version of the SVN source tree, and recompile. This will give y...
by mellinger
19 Dec 2022, 08:07
Forum: Known Issues
Topic: Need help connecting via LSL
Replies: 5
Views: 407

Re: Need help connecting via LSL

Hi, our expert is on vacation, so I will try to help you with this. If you have a moving line, this means that data is coming in. If no signal is visible, two possibilities exist: 1) there is NaN data coming in, 2) the data has a large offset. To see what is the case, please right-click on the displ...
by mellinger
30 Jun 2022, 11:54
Forum: Configuration
Topic: BCI2000 with Nautilus
Replies: 2
Views: 931

Re: BCI2000 with Nautilus

Hi, you should be following instructions from here:
https://www.bci2000.org/mediawiki/index ... :gNautilus

There is a DeviceIDs parameter, which should be set to "auto" , and a DeviceIDMaster parameter, which should be set to "auto" as well.
by mellinger
22 Jun 2022, 07:53
Forum: Configuration
Topic: Display image icon in "Text to Spell" Box on P300 Speller
Replies: 1
Views: 421

Re: Display image icon in "Text to Spell" Box on P300 Speller

Hi,

unfortunately, there is no way to display icons in the "Text to spell" box, sorry.

-Juergen
by mellinger
21 Jun 2022, 15:37
Forum: Configuration
Topic: including resting data with recording
Replies: 1
Views: 426

Re: including resting data with recording

Hi, BCI2000 will record data for all values of TargetCode, it is not possible to restrict recording to certain values of that. If you feel you are missing data, you may have got the SamplingRate wrong when considering the number of samples? Apart from that, I have difficulties understanding what you...
by mellinger
20 Apr 2022, 11:22
Forum: BCI Systems - General
Topic: Problem with P300 Speller Task with Emotiv Flex
Replies: 8
Views: 1989

Re: Problem with P300 Speller Task with Emotiv Flex

In the meantime, I found out that there is an error in the batch file. In P3Speller_LSLSource.bat, replace "DummySignalProcessing" with "P3SignalProcessing".
by mellinger
20 Apr 2022, 11:19
Forum: Known Issues
Topic: P300 calibration - text not advancing
Replies: 5
Views: 2517

Re: P300 calibration - text not advancing

There is an error in the batch file. Replace "DummySignalProcessing" with "P3SignalProcessing", and it should work.