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PostPosted: Tue Oct 27, 2015 12:37 pm 
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Joined: Tue Oct 27, 2015 11:58 am
Posts: 2
Hello,
I m working on my project of mind reading and have successfully obtained csv file in openvibe uisng neurosky headset on two different mental states.Now i want to find Power spectrum and so trying to use the available box of powerspectrum.xml which initiate s with generic stream reader . so i converted csv file to ov uisng converter box. but following warnings are coming ..and i m unable to see power spectra...

[WARNING] At time 0.000 sec <Box algorithm::(0x00000d3a, 0x00007272) aka Generic stream reader> No free output connector for stream 3 of type (0x6f752dd0, 0x082a321e) (Stimulations)

[ ERROR ] At time 0.000 sec <Box algorithm::(0x00006157, 0x00000331) aka Reference Channel> Needs at least 2 channels, got 1

[WARNING] Box algorithm <Reference Channel> has been deactivated because process() function returned erro

need some help....


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PostPosted: Fri Dec 11, 2015 8:33 am 
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Joined: Tue Dec 04, 2012 3:53 pm
Posts: 601
Location: INRIA Rennes, FRANCE
Hi,

this is a problem that your signal processing chain is not compatible with your data. If you have only 1 channel from Neurosky, you need to customize the chain to take that into account. For example, you can't use reference channel with just 1 channel.


Happy hacking,
Jussi


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PostPosted: Mon Jan 25, 2016 7:04 am 
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Joined: Tue Oct 27, 2015 11:58 am
Posts: 2
Thank you jussi for the solution.


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