bci2000.org BBS

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.

Hi,

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

Best regards,
Juergen

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

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

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.

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

Yes, you would need to alter the source code of the SpatialFilter.

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 ...

Would it help you if you could specify a state variable as an input to the SpatialFilter?

Hi,

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

-Juergen

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

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

Hi,

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

--Juergen

Hi,

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

Best regards,
Juergen

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...