Search found 1190 matches

by mellinger
08 Jul 2021, 15:42
Forum: Configuration
Topic: Inverse signals recorded in Micromed and BCI2000
Replies: 1
Views: 1008

Re: Inverse signals recorded in Micromed and BCI2000

You might have a negative value entered for SourceChGain? Or, if not and this bothers you, you may enter a negative value there to align Micromed and BCI2000 signal orientation.
by mellinger
05 Jul 2021, 10:53
Forum: Configuration
Topic: TMSi 64 bit + BCI2000
Replies: 1
Views: 904

Re: TMSi 64 bit + BCI2000

Hi,

I'm sorry to report that we don't have a source module for the current TMSi driver.

Best regards,
Juergen
by mellinger
14 Jun 2021, 12:00
Forum: Known Issues
Topic: Problem with MatlabSignalProcessing
Replies: 1
Views: 937

Re: Problem with MatlabSignalProcessing

Hi,

you need to enter the path to the Matlab executable into the batch file you use to run Matlab signal processing, not run MatlabSignalProcessing from a separate cmd line.

Let me know whether this solves your problem.

-Juergen
by mellinger
29 May 2021, 06:53
Forum: Software Development
Topic: actichamp failed to get device handle
Replies: 2
Views: 1466

Re: actichamp failed to get device handle

Hello hzong,

did you read the actiChamp's contribution page on the BCI2000 wiki?
https://www.bci2000.org/mediawiki/index ... :actiCHamp

The battery might be low, or actiCHampAmplifierID might be set to something other than 0.

Regards,
Juergen
by mellinger
26 May 2021, 12:34
Forum: Software Development
Topic: Communication stops
Replies: 3
Views: 1609

Re: Communication stops

OK, so it seems you are not using any spin lock. If you post your code I may have a suggestion what the problem might be. Send me a private message with the code attached if you don't want your code to be publicly visible.
by mellinger
20 May 2021, 13:04
Forum: Software Development
Topic: Communication stops
Replies: 3
Views: 1609

Re: Communication stops

Hi,

if the debugger takes you to Atomic::Compare, it is likely that you are trying to lock an already locked spin lock. Does your code use any spin locks?

Regards,
Jürgen
by mellinger
20 May 2021, 12:58
Forum: Known Issues
Topic: Pupil Diameter and BCI2000
Replies: 5
Views: 1962

Re: Pupil Diameter and BCI2000

Yes, you would need to alter the source code of the SpatialFilter.
by mellinger
11 May 2021, 09:57
Forum: Configuration
Topic: acquiring simultaneously from multiple DAQs
Replies: 1
Views: 1140

Re: acquiring simultaneously from multiple DAQs

Hi, this is not possible with BCI2000 standard components. Depending on the type of EMG unit, if it records EMG envelope at a low sampling rate rather than the full EMG signal at a high sampling rate, you could write a BCI2000 logger component that writes the EMG envelope data into the main BCI2000 ...
by mellinger
04 May 2021, 13:02
Forum: Known Issues
Topic: Pupil Diameter and BCI2000
Replies: 5
Views: 1962

Re: Pupil Diameter and BCI2000

Would it help you if you could specify a state variable as an input to the SpatialFilter?
by mellinger
04 May 2021, 09:04
Forum: Known Issues
Topic: Pupil Diameter and BCI2000
Replies: 5
Views: 1962

Re: Pupil Diameter and BCI2000

Hi,

which BCI2000 extension are you using for the TX300? EyetrackerLogger, EyetrackerLoggerTobii3, EyetrackerLoggerTobiiPro, or EyetracerLoggerTobiiX?

-Juergen
by mellinger
04 May 2021, 08:57
Forum: BCI Systems - User Applications
Topic: How to use VideoPlayer to play video on application window?
Replies: 1
Views: 2120

Re: How to use VideoPlayer to play video on application window?

Hi,

your VideoPlayer object is destroyed when execution leaves the StartRun() function. You need to create it on the heap (with "new").

Hope this helps,
Juergen
by mellinger
12 Apr 2021, 12:32
Forum: Software Development
Topic: The error is BCI2000 link to neuroscan
Replies: 13
Views: 3669

Re: The error is BCI2000 link to neuroscan

Unfortunately, we don't have a Neuroscan amplifier nor the Scan4.3 software available to test.
We can do remote debugging, if you agree, using Google Remote Desktop. Let us know your location so we can pick a time that is convenient for both of us.

Regards,
Juergen
by mellinger
10 Apr 2021, 08:12
Forum: Software Development
Topic: The error is BCI2000 link to neuroscan
Replies: 13
Views: 3669

Re: The error is BCI2000 link to neuroscan

Hi,

what do you mean by "latest version"? A download from the BCI2000 website, or did you compile from source?

--Juergen
by mellinger
26 Mar 2021, 11:51
Forum: BCI Systems - General
Topic: BCI2000
Replies: 1
Views: 1449

Re: BCI2000

Hi,

for BCI2000, you need access to the raw EEG. So it seems you should buy the academic licensing option.

Best regards,
Juergen
by mellinger
19 Feb 2021, 14:26
Forum: BCI Systems - User Applications
Topic: Using BCI2000 to combine Python and MATLAB
Replies: 1
Views: 1188

Re: Using BCI2000 to combine Python and MATLAB

In principle, this is possible. BCI2000 comes with a MatlabSignalProcessing component that allows you to feed EEG data into a Matlab script, however be aware that the Matlab script needs to be able to process chunks of data in sequence, rather than an entire session as is typically the case. For fur...