Search found 1051 matches

by mellinger
18 Jan 2019, 09:14
Forum: Configuration
Topic: How to perform a two-dimensional cursor task?
Replies: 1
Views: 95

Re: How to perform a two-dimensional cursor task?

Hi,

running BCI2000/batch/CursorTask_SignalGenerator.bat will provide you with a starting point for 2D feedback.
Duplicate and edit the batch file in order to run your desired signal source module.

HTH,
Jürgen
by mellinger
04 Dec 2018, 10:39
Forum: BCI Systems - User Applications
Topic: UDP
Replies: 3
Views: 477

Re: UDP

This information may help to solve your simulink problem:
https://ch.mathworks.com/matlabcentral/ ... n-simulink
by mellinger
14 Nov 2018, 10:06
Forum: Known Issues
Topic: Question about using OpenBCI for a P3Speller task
Replies: 3
Views: 389

Re: Question about using OpenBCI for a P3Speller task

Hi,

the buffer duration of 500ms is a limitation of the OpenBCI firmware.
So yes, you would need to modify the firmware if you want to perform P300 experiments using OpenBCI.

Regards,
Jürgen
by mellinger
23 Oct 2018, 12:00
Forum: Configuration
Topic: sample block duration and StimulusDuration
Replies: 1
Views: 695

Re: sample block duration and StimulusDuration

I cannot reproduce your observations with my current version of BCI2000. If your SampleBlockSize fails to be exactly 200ms long, there might be rounding issues, though.

-Jürgen
by mellinger
23 Oct 2018, 11:11
Forum: BCI Systems - User Applications
Topic: Setting up a new BCI2000 C++ module - Error
Replies: 2
Views: 651

Re: Setting up a new BCI2000 C++ module - Error

The CMakeLists.txt file in the src/custom directory should not contain a bci2000_add_application_module() statement. Rather, it should only include add_subdirectory() statements. Everything else should go into the CMakeLists.txt file contained inside the src/custom/TEMP directory.

-Jürgen
by mellinger
23 Oct 2018, 10:56
Forum: Data Analysis
Topic: Managing Output Data
Replies: 1
Views: 468

Re: Managing Output Data

by mellinger
23 Oct 2018, 10:51
Forum: Configuration
Topic: Cursor Task Classifier Matrix Issue
Replies: 1
Views: 656

Re: Cursor Task Classifier Matrix Issue

Did you assign channel names in the Source->ChannelNames parameter?

-Jürgen
by mellinger
23 Oct 2018, 10:45
Forum: Configuration
Topic: why sample block sice?
Replies: 1
Views: 630

Re: why sample block sice?

If you use a SampleBlockSize of 32, you have 32 samples in a block, not 8. Why this system of sampling? Just like audio data is processed in blocks of data rather than individual samples, so is EEG data. This is because a computer cannot be made to constantly and reliably process data at single samp...
by mellinger
23 Oct 2018, 10:39
Forum: Configuration
Topic: Failed to download the BCI2000 using TortoiseSVN
Replies: 1
Views: 551

Re: Failed to download the BCI2000 using TortoiseSVN

After the first error, just right-click the download folder, and choose "SVN update", and repeat until everything has been downloaded.

You cannot compile BCI2000 unless you downloaded all of its source code.

-Jürgen
by mellinger
23 Oct 2018, 10:34
Forum: Configuration
Topic: biosemi2
Replies: 1
Views: 469

Re: biosemi2

You cannot run biosemi2.exe on its own, only in conjunction with the operator module.

-Jürgen
by mellinger
23 Oct 2018, 10:29
Forum: Configuration
Topic: BCI2000 Cursor Task
Replies: 1
Views: 435

Re: BCI2000 Cursor Task

The only signal processing modules that work with the CursorTask application module are SpectralSignalProcessing and ARSignalProcessing.

-Jürgen
by mellinger
23 Oct 2018, 10:26
Forum: Configuration
Topic: 3D Cursor Task Setup
Replies: 3
Views: 347

Re: 3D Cursor Task Setup

Set the CameraProjection parameter to "wide angle perspective".

-Jürgen
by mellinger
23 Oct 2018, 09:48
Forum: BCI Systems - Signal Processing
Topic: Calculation of FFT power for offline analysis
Replies: 1
Views: 432

Re: Calculation of FFT power for offline analysis

Hi,

to help answer you questions, more detailed information has been added to the BCI2000 wiki:
https://www.bci2000.org/mediawiki/index ... lEstimator

Let me know if you need further clarification.

-Jürgen
by mellinger
22 Oct 2018, 11:36
Forum: BCI Systems - User Applications
Topic: UDP
Replies: 3
Views: 477

Re: UDP

As explained in the AppConnector documentation, data consists of the name of each BCI2000 state, followed with its value, plus the name of each data entry in the application module's input, followed with its value. You might be slow in receiving AppConnector data, and thus you may sometimes receive ...