OpenViBE forum

Hello all,

I am getting the following error and warning when running the online stage:

[ ERROR ] At time 0.141 sec <Box algorithm::CSP Spatial Filter> Bad matrix size - Expected 16 input channels and received 14 input channels
[WARNING] Box algorithm <CSP Spatial Filter> has been deactivated because process phase returned bad status

I am using the EPOC Emotiv for the acquisition, with only 14 electrodes.

This is strange for me because I am using the exact same parameters I used in the previous tests I've done, and I hadn't have troubles before. The only change I made in my scenario is using 2 features instead of one. Could this modify the CSP performance?

Thanks!

Lorena

Simply add the two channels of gyroscope if you get these kinda errors.

But I didn't add those channels, I am working only with 14 channels

Could you solve the problem?