Search found 1163 matches

by mellinger
22 Jul 2021, 10:12
Forum: Software Development
Topic: Question about SourceFilter
Replies: 3
Views: 76

Re: Question about SourceFilter

Hi, I used the SignalGenerator source module to verify that the filters are working. I verified by inspecting the signal in the source window. The high pass filter successfully removed an offset of 50muV. The low pass filter showed a smoothed signal, compared to the raw white noise of 100muV. The No...
by mellinger
15 Jul 2021, 13:33
Forum: Known Issues
Topic: P300 calibration - text not advancing
Replies: 1
Views: 26

Re: P300 calibration - text not advancing

Hi,

I don't know which parameters you are using, so I tried the P3Speller_SignalGenerator.bat file, and it works fine for me. Could you try this and maybe double check your parameters?

HTH,
Juergen
by mellinger
15 Jul 2021, 13:22
Forum: Software Development
Topic: Question about SourceFilter
Replies: 3
Views: 76

Re: Question about SourceFilter

Hi,

you need to enable SourceFilter filters in the configuration dialog, under the Source tab. If you enable a filter by right-clicking the source window, the filter will only be applied to the data displayed in the window, not to the data written to disk.

HTH,
Juergen
by mellinger
08 Jul 2021, 15:42
Forum: Configuration
Topic: Inverse signals recorded in Micromed and BCI2000
Replies: 1
Views: 40

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: 58

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: 121

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: 287

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: 307

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: 307

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: 459

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: 255

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: 459

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: 459

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: 300

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: 3
Views: 354

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