Search found 20 matches

by happilylazy
Tue Jun 25, 2013 9:15 am
Forum: BioSemi Hardware
Topic: Unable to set common/ground for participant
Replies: 1
Views: 6061

Unable to set common/ground for participant

There was a participant in the experiments today and we were not able to set the common/ground (the blue light on the box) to work. Even though, when I touched the electrodes, common/ground was set (the blue light) but not for him. This was both on the EEG and separated CMS/DRL electrodes. What is t...
by happilylazy
Wed Jun 19, 2013 11:41 am
Forum: BioSemi Software (ActiView executable)
Topic: Can I enable the eyetracker in the API?
Replies: 1
Views: 9229

Re: Can I enable the eyetracker in the API?

I am using fieldtrip application from donders institute to acquire data, but I also have no data in je JAZZ eyetracker channels, while the other channels are fine.

Is there an enable bit flag somewhere to enable the online acquisition of the JAZZ eyetracker data through the API?
by happilylazy
Wed Jan 30, 2013 10:58 am
Forum: BioSemi all other topics
Topic: Weird GSR data
Replies: 7
Views: 17801

Re: Weird GSR data

Can you please answer the previous post question, which boils down to: Which value(s) to regard as a current GSR value, during the 16Hz excitation current half-wave?
by happilylazy
Tue Jan 22, 2013 2:53 pm
Forum: BioSemi all other topics
Topic: Weird GSR data
Replies: 7
Views: 17801

Re: Weird GSR data

So since we can get a new GSR data every half-wave of 16 Hz excitation current, that means the sampling rate is 32 Hz. Then from the values posted above: Sync: -256 gv: 4666uS Sync: -256 gv: 4937uS Sync: -256 gv: 5358uS Sync: -256 gv: 5612uS Sync: -256 gv: 5600uS Sync: -256 gv: 5533uS Sync: -256 gv:...
by happilylazy
Fri Jan 18, 2013 8:15 pm
Forum: BioSemi all other topics
Topic: Weird GSR data
Replies: 7
Views: 17801

Re: Weird GSR data

Can you please help us in decoding the .vi GSR object to get the real GSR value in correct voltage measure. I'm afraid we are a bit unexperianced with LabView, but we can write regular code. Picture is related. Its GSR object from LabView What we have are the values pasted in the above post, and we ...
by happilylazy
Mon Sep 17, 2012 4:18 pm
Forum: BioSemi Software (ActiView executable)
Topic: Manually sending a trigger event to actiview
Replies: 6
Views: 16303

Manually sending a trigger event to actiview

Hi.

Is there a way of manually sending a trigger event through software/port/socket/dll (running on the same machine as ActiveView) with comment and such.
I am interested if there is a way to save an event marker without going through an BioSemi USB receiver to trigger and event.

//Petar
by happilylazy
Tue Sep 04, 2012 9:06 am
Forum: BioSemi Hardware
Topic: Jazz eyetracker help
Replies: 3
Views: 7849

Re: Jazz eyetracker help

Apart from the questions I asked, can you provide me with the information: Can we measure PUPIL DILATION with the Jazz eyetracker.

//Petar
by happilylazy
Mon Sep 03, 2012 12:13 pm
Forum: BioSemi Hardware
Topic: Jazz eyetracker help
Replies: 3
Views: 7849

Jazz eyetracker help

Hi. We purchased the Jazz eyetracker and got it to work with the BioSemi system without a problem, great work. I acquired a small manual from the Neurospec, but is there a more extensive manual on participant/hardware setup, measuring, best practices, ... or such? Also, since ActiveView just records...
by happilylazy
Tue Sep 06, 2011 9:50 am
Forum: BioSemi all other topics
Topic: Weird GSR data
Replies: 7
Views: 17801

Can you please direct me on how to see the "ActiView source code". I have "ActiView605-Laptop.vi" but how do you read the actual source code from this?

Or if you or someone who has the code, can post the code snippet regarding calculation of GSR values.
by happilylazy
Sat Jul 23, 2011 1:32 pm
Forum: BioSemi all other topics
Topic: Weird GSR data
Replies: 7
Views: 17801

Weird GSR data

I have a BioSemi Active Two Mk2 box (checked against serial key) and 16 Hz excitation current (check by GSR unit displayed in ActiView). I together with a colegue we wrote an acquisition program for GSR values. Can you help me decipher what is going on with my values from the ringbuffer please. The ...
by happilylazy
Tue Jun 29, 2010 12:39 pm
Forum: BioSemi Software (ActiView executable)
Topic: Noob using Labview_DLL
Replies: 17
Views: 21310

Tnx, I did exactly that. But i have MS Visual Studio 2008 Professional Edition so there should be no problem there. I successfully ran the program and didn't receive any error. Now I have to get the GSR data and analyze it to use it in the game. Please can you point me in this direction (post, threa...
by happilylazy
Tue Jun 29, 2010 10:39 am
Forum: BioSemi Software (ActiView executable)
Topic: Noob using Labview_DLL
Replies: 17
Views: 21310

OK, I forgot to mention my system is Windows7 64bit, and as such I downloaded the Win7 64bit version of the drivers, and they couldn't compile no matter how much I tried. Then I downloaded 32bit version and voila, it compiled like a charm. Has anybody had the same problem? Seams like a problem in th...
by happilylazy
Mon Jun 28, 2010 12:54 pm
Forum: BioSemi Software (ActiView executable)
Topic: Noob using Labview_DLL
Replies: 17
Views: 21310

Thank you for the help. Yeah, the ".h" part gets cut of constantly, but I got it. The thing is, I tried all of the steps stated in your last post but i still couldn't compile. So I asked my very good programming friend and he couldn't do it too, like ".lib" doesn't have all the function definitions....
by happilylazy
Thu Jun 24, 2010 8:43 am
Forum: BioSemi Software (ActiView executable)
Topic: Noob using Labview_DLL
Replies: 17
Views: 21310

OK, so let's start from the scratch.
I have dynamic library labview_dll (.h, .lib, .dll), how do I write the first example program with it in C or C++.
Can you please help me with this, small example or tutorial.
by happilylazy
Wed Jun 23, 2010 12:10 pm
Forum: BioSemi Software (ActiView executable)
Topic: Noob using Labview_DLL
Replies: 17
Views: 21310

[quote="pmac"]Happ, It looks like the linker doesn't have the labview_dll.dll file. Do you include it explicitly as a library to be searched? Paul[/quote] I have been at this for a while now and I keep getting the same error message over and over again, does anybody know how to do this in Visual Stu...
by happilylazy
Tue Jun 22, 2010 3:41 pm
Forum: BioSemi Software (LabVIEW programming)
Topic: problem with usb_write method
Replies: 2
Views: 18285

The [b]Labview_DLL_SyncTest.exe[/b] works withouth the problem as long as I don't stop it, so I guess I'm good on driver point.
I will try to fix my code a little bit regarding dll inclusion and check this in detail.
by happilylazy
Tue Jun 22, 2010 3:35 pm
Forum: BioSemi Software (ActiView executable)
Topic: Noob using Labview_DLL
Replies: 17
Views: 21310

OK, I found header, lib and dll, wrote this simple example, but am I forgetting something here o_O It doesn't want to compile and whines about: error LNK2019: unresolved external symbol __imp__OPEN_DRIVER_ASYNC referenced in function _main fatal error LNK1120: 1 unresolved externals [code] #include ...
by happilylazy
Tue Jun 22, 2010 2:59 pm
Forum: BioSemi Software (ActiView executable)
Topic: Noob using Labview_DLL
Replies: 17
Views: 21310

lol, I haven't seen this there. Damn, I'll try this instead since this way I have definitions of the functions.
by happilylazy
Tue Jun 22, 2010 10:03 am
Forum: BioSemi Software (LabVIEW programming)
Topic: problem with usb_write method
Replies: 2
Views: 18285

problem with usb_write method

I reproduced the example of synchronized program that we get when downloading Win64 USB drivers. But when calling the usb_write method I get error "usb_write for enable handshake trouble 6" [code] nStatus = usbwrite(usbHandle, &usbdata[0]); if (nStatus == FALSE) { // ERROR printf ("usb_write for ena...
by happilylazy
Tue Jun 22, 2010 9:05 am
Forum: BioSemi Software (ActiView executable)
Topic: Noob using Labview_DLL
Replies: 17
Views: 21310

Noob using Labview_DLL

Please if you can help me with this. I just patched Biosemi to my laptop, installed drivers and downloaded ActiView604-Light, but there is only [b]Labview_dll.dll[/b] withouth header .h or library .lib So I have written dynamic dll loading, please tell me if I'm doing something wrong here. [code]#in...