I am doing an ERP experiment with Cyton board. I am getting a random time latency during appending the LSL marker. How we can reduce the time latency to get proper epoch from the data?
The best approach with P300 experiments, is to use the External Trigger capability of Cyton, to record a simultaneous time mark from the stimulation event, along with the actual EEG data stream. LSL markers depend on tight timing of the incoming samples, typically with USB based wired interfaces. Since Cyton is using Bluetooth radio packets, there is more latency and jitter induced.
Comments
The best approach with P300 experiments, is to use the External Trigger capability of Cyton, to record a simultaneous time mark from the stimulation event, along with the actual EEG data stream. LSL markers depend on tight timing of the incoming samples, typically with USB based wired interfaces. Since Cyton is using Bluetooth radio packets, there is more latency and jitter induced.
https://docs.openbci.com/Cyton/CytonExternal/
https://docs.openbci.com/Examples/VideoExperiment/